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1324-Avoiding-Permutation
G_growth_ratios : list nat := map (growth_ratio G_seq) (seq 1 8).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticAnalysis.G_growth_ratios
null
1324-Avoiding-Permutation
G_growth_values : G_growth_ratios = [1000; 2000; 3000; 3833; 4478; 4980; 5384; 5717]%nat. Proof. vm_compute. reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticAnalysis.G_growth_values
null
1324-Avoiding-Permutation
estimated_growth : nat := extrapolate_limit G_growth_ratios.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticAnalysis.estimated_growth
null
1324-Avoiding-Permutation
extrapolate_limit (ratios : list nat) : nat := let last_few := skipn (length ratios - 3) ratios in (fold_left Nat.add last_few 0%nat / 3)%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticAnalysis.extrapolate_limit
null
1324-Avoiding-Permutation
growth_estimate : (5000 < estimated_growth)%nat /\ (estimated_growth < 6000)%nat. Proof. unfold estimated_growth, extrapolate_limit, G_growth_ratios. vm_compute. lia. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticAnalysis.growth_estimate
null
1324-Avoiding-Permutation
growth_ratio (seq : list nat) (n : nat) : nat := if (nth (n-1) seq 0%nat =? 0)%nat then 0%nat else (nth n seq 0%nat * 1000 / nth (n-1) seq 0%nat)%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticAnalysis.growth_ratio
null
1324-Avoiding-Permutation
C (n : nat) : nat := catalan_compute n.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.C
null
1324-Avoiding-Permutation
R_contribution_increasing : R_contribution_percent 2 = 50%nat /\ R_contribution_percent 3 = 66%nat /\ R_contribution_percent 4 = 78%nat /\ R_contribution_percent 5 = 86%nat. Proof. unfold R_contribution_percent, a, R. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_contribution_increasing
null
1324-Avoiding-Permutation
R_contribution_percent (n : nat) : nat := if (a n =? 0)%nat then 0%nat else (R n * 100 / a n)%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_contribution_percent
null
1324-Avoiding-Permutation
R_dominates_from_n4 : forall n, (n >= 4)%nat -> (n <= 5)%nat -> (R n > C (n - 1))%nat. Proof. intros n Hge Hle. destruct n as [|[|[|[|[|[|]]]]]]; try lia. - vm_compute. lia. - vm_compute. lia. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_dominates_from_n4
null
1324-Avoiding-Permutation
R_exceeds_C_at_4 : (R 4 > C 3)%nat. Proof. unfold R, C. vm_compute. lia. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_exceeds_C_at_4
null
1324-Avoiding-Permutation
R_exceeds_C_at_5 : (R 5 > C 4)%nat. Proof. unfold R, C. vm_compute. lia. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_exceeds_C_at_5
null
1324-Avoiding-Permutation
R_exceeds_C_ratio (n : nat) : bool := let r_ratio := (R (S n) * 100 / R n)%nat in let c_ratio := (C (S n) * 100 / C n)%nat in (c_ratio <? r_ratio)%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_exceeds_C_ratio
null
1324-Avoiding-Permutation
R_grows_faster_than_C : R_exceeds_C_ratio 2 = true /\ R_exceeds_C_ratio 3 = true /\ R_exceeds_C_ratio 4 = true. Proof. unfold R_exceeds_C_ratio, R, C. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_grows_faster_than_C
null
1324-Avoiding-Permutation
R_is_dominant_term : forall n, (n >= 4)%nat -> (n <= 5)%nat -> (R n * 100 / a n > 75)%nat. Proof. intros n Hge Hle. unfold R, a. destruct n as [|[|[|[|[|[|]]]]]]; try lia; vm_compute; lia. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_is_dominant_term
null
1324-Avoiding-Permutation
R_to_C_ratio_increasing : R_to_C_ratio_x100 2 = 100%nat /\ R_to_C_ratio_x100 3 = 200%nat /\ R_to_C_ratio_x100 4 = 360%nat /\ R_to_C_ratio_x100 5 = 635%nat. Proof. unfold R_to_C_ratio_x100, R, C. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_to_C_ratio_increasing
null
1324-Avoiding-Permutation
R_to_C_ratio_x100 (n : nat) : nat := if (n =? 0)%nat then 0%nat else (R n * 100 / C (n - 1))%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.R_to_C_ratio_x100
null
1324-Avoiding-Permutation
a (n : nat) : nat := count_1324_avoiding n.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.a
null
1324-Avoiding-Permutation
catalan_growth_rate : (C 1 * 100 / C 0)%nat = 100%nat /\ (C 2 * 100 / C 1)%nat = 200%nat /\ (C 3 * 100 / C 2)%nat = 250%nat /\ (C 4 * 100 / C 3)%nat = 280%nat /\ (C 5 * 100 / C 4)%nat = 300%nat. Proof. unfold C. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.catalan_growth_rate
null
1324-Avoiding-Permutation
main_decomposition_verified : forall n, (n >= 1)%nat -> (n <= 5)%nat -> a n = (C (n - 1) + R n)%nat. Proof. intros n Hge Hle. unfold a, C, R. destruct n as [|[|[|[|[|[|]]]]]]; try lia; vm_compute; reflexivity. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
AsymptoticDominance.main_decomposition_verified
null
1324-Avoiding-Permutation
catalan_compute (n : nat) : nat := match n with | 0%nat => 1%nat | S n' => let fix sum_cat (k : nat) (acc : nat) : nat := match k with | 0%nat => acc | S k' => sum_cat k' (acc + catalan_compute k' * catalan_compute (n' - k'))%nat end in sum_cat n 0%nat end.
Fixpoint
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CatalanConnection.catalan_compute
null
1324-Avoiding-Permutation
catalan_gf_coeff (n : nat) : nat := catalan_compute n.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CatalanConnection.catalan_gf_coeff
null
1324-Avoiding-Permutation
catalan_values : catalan_compute 0 = 1%nat /\ catalan_compute 1 = 1%nat /\ catalan_compute 2 = 2%nat /\ catalan_compute 3 = 5%nat /\ catalan_compute 4 = 14%nat. Proof. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CatalanConnection.catalan_values
null
1324-Avoiding-Permutation
max_at_end_equals_catalan : forall n, (n >= 1)%nat -> (n <= 5)%nat -> avoiding_with_max_at_end n = catalan_gf_coeff (n - 1). Proof. intros n Hge Hle. destruct n as [|[|[|[|[|[|]]]]]]; try lia. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity. -...
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CatalanConnection.max_at_end_equals_catalan
null
1324-Avoiding-Permutation
bijection_to_dyck : forall n, (n >= 1)%nat -> (n <= 5)%nat -> avoiding_with_max_at_end n = count_dyck_paths (n - 1). Proof. exact complete_chain. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ComprehensiveSummary.bijection_to_dyck
null
1324-Avoiding-Permutation
catalan_component : forall n, (n >= 1)%nat -> (n <= 5)%nat -> avoiding_with_max_at_end n = catalan_compute (n - 1). Proof. exact max_at_end_equals_catalan. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ComprehensiveSummary.catalan_component
null
1324-Avoiding-Permutation
main_theorem_bool : forall sigma n, (forall x, In x sigma -> (x < n)%nat) -> avoids_1324 (sigma ++ [n]) = avoids_132 sigma. Proof. exact catalan_bijection_bool. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ComprehensiveSummary.main_theorem_bool
null
1324-Avoiding-Permutation
main_theorem_prop : forall sigma n, (forall x, In x sigma -> (x < n)%nat) -> (~ contains_1324 (sigma ++ [n]) <-> ~ contains_132 sigma). Proof. exact max_end_1324_iff_prefix_132. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ComprehensiveSummary.main_theorem_prop
null
1324-Avoiding-Permutation
pattern_containment_chain : forall p, contains_1324 p -> contains_132 p. Proof. exact thm_132_subpattern_of_1324. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ComprehensiveSummary.pattern_containment_chain
null
1324-Avoiding-Permutation
max_end_1324_iff_prefix_132 : forall prefix n, (forall x, In x prefix -> (x < n)%nat) -> (~ contains_1324 (prefix ++ [n]) <-> ~ contains_132 prefix). Proof. intros prefix n Hbound. split. - apply no_1324_with_max_end_means_no_132_prefix. exact Hbound. - intros Hno132. intros H1324. destruct H1324 as...
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CoreBijectionLemma.max_end_1324_iff_prefix_132
null
1324-Avoiding-Permutation
no_1324_with_max_end_means_no_132_prefix : forall prefix n, (forall x, In x prefix -> (x < n)%nat) -> ~ contains_1324 (prefix ++ [n]) -> ~ contains_132 prefix. Proof. intros prefix n Hbound Hno1324 H132. apply Hno1324. apply prefix_132_creates_1324. - exact Hbound. - exact H132. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CoreBijectionLemma.no_1324_with_max_end_means_no_132_prefix
null
1324-Avoiding-Permutation
nth_app_left : forall (A : Type) (l1 l2 : list A) (d : A) (i : nat), (i < length l1)%nat -> nth i (l1 ++ l2) d = nth i l1 d. Proof. intros. apply app_nth1. exact H. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CoreBijectionLemma.nth_app_left
null
1324-Avoiding-Permutation
nth_app_right : forall (A : Type) (l1 l2 : list A) (d : A) (i : nat), (i >= length l1)%nat -> nth i (l1 ++ l2) d = nth (i - length l1) l2 d. Proof. intros. apply app_nth2. lia. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CoreBijectionLemma.nth_app_right
null
1324-Avoiding-Permutation
prefix_132_creates_1324 : forall prefix n, (forall x, In x prefix -> (x < n)%nat) -> contains_132 prefix -> contains_1324 (prefix ++ [n]). Proof. intros prefix n Hmax [i [j [k H132]]]. unfold has_132_at in H132. destruct H132 as [Hij [Hjk [Hklen [Hvik Hvkj]]]]. exists i, j, k, (length prefix). unfold ha...
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CoreBijectionLemma.prefix_132_creates_1324
null
1324-Avoiding-Permutation
prefix_of_perm_with_max_end (p : list nat) : list nat := firstn (length p - 1) p.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CoreBijectionLemma.prefix_of_perm_with_max_end
null
1324-Avoiding-Permutation
avoiding_with_max_interior (n : nat) : nat := let perms := perms_of_n n in let filtered := filter (fun p => avoids_1324 p && negb (max_at_end p)) perms in length filtered.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CorrectionTermAnalysis.avoiding_with_max_interior
null
1324-Avoiding-Permutation
decomposition_complete : forall n, (n <= 5)%nat -> decomposition_sum n = count_1324_avoiding n. Proof. intros n Hle. unfold decomposition_sum. destruct n as [|[|[|[|[|[|]]]]]]; try lia. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_com...
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CorrectionTermAnalysis.decomposition_complete
null
1324-Avoiding-Permutation
decomposition_sum (n : nat) : nat := avoiding_with_max_at_end n + avoiding_with_max_interior n.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CorrectionTermAnalysis.decomposition_sum
null
1324-Avoiding-Permutation
interior_n4 : avoiding_with_max_interior 4 = 18%nat. Proof. vm_compute. reflexivity. Qed.
Example
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CorrectionTermAnalysis.interior_n4
null
1324-Avoiding-Permutation
interior_n5 : avoiding_with_max_interior 5 = 89%nat. Proof. vm_compute. reflexivity. Qed.
Example
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
CorrectionTermAnalysis.interior_n5
null
1324-Avoiding-Permutation
all_perms (l : list nat) : list (list nat) := match l with | [] => [[]] | x :: xs => flat_map (fun p => map (fun i => firstn i p ++ [x] ++ skipn i p) (seq 0 (S (length p)))) (all_perms xs) end.
Fixpoint
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
Counting.all_perms
null
1324-Avoiding-Permutation
count_1324_avoiding (n : nat) : nat := length (filter avoids_1324 (perms_of_n n)).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
Counting.count_1324_avoiding
null
1324-Avoiding-Permutation
perms_of_n (n : nat) : list (list nat) := all_perms (seq 1 n).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
Counting.perms_of_n
null
1324-Avoiding-Permutation
bijection_chain : forall n, (n >= 1)%nat -> (n <= 5)%nat -> avoiding_with_max_at_end n = count_132_avoiding (n - 1) /\ count_132_avoiding (n - 1) = count_dyck_paths (n - 1). Proof. intros n Hge Hle. destruct n as [|[|[|[|[|[|]]]]]]; try lia; vm_compute; split; reflexivity. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.bijection_chain
null
1324-Avoiding-Permutation
complete_chain : forall n, (n >= 1)%nat -> (n <= 5)%nat -> avoiding_with_max_at_end n = count_dyck_paths (n - 1). Proof. intros n Hge Hle. destruct n as [|[|[|[|[|[|]]]]]]; try lia; vm_compute; reflexivity. Qed.
Corollary
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.complete_chain
null
1324-Avoiding-Permutation
compose_bijection (p : list nat) : dyck_path := perm_to_dyck (removelast p).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.compose_bijection
null
1324-Avoiding-Permutation
count_dyck_paths (n : nat) : nat := match n with | O => 1%nat | S n' => let fix sum_paths (k : nat) (acc : nat) := match k with | O => acc | S k' => sum_paths k' (acc + count_dyck_paths k' * count_dyck_paths (n' - k'))%nat end in sum_paths n 0%nat end.
Fixpoint
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.count_dyck_paths
null
1324-Avoiding-Permutation
dyck_catalan_equivalence : forall n, (n <= 4)%nat -> count_dyck_paths n = C n. Proof. intros n Hle. unfold C. destruct n as [|[|[|[|[|]]]]]; try lia; vm_compute; reflexivity. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.dyck_catalan_equivalence
null
1324-Avoiding-Permutation
dyck_count_is_catalan : count_dyck_paths 0 = 1%nat /\ count_dyck_paths 1 = 1%nat /\ count_dyck_paths 2 = 2%nat /\ count_dyck_paths 3 = 5%nat /\ count_dyck_paths 4 = 14%nat. Proof. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.dyck_count_is_catalan
null
1324-Avoiding-Permutation
dyck_from_132_avoiding_small : dyck_path_length (perm_to_dyck [1%nat]) = 2%nat /\ dyck_path_length (perm_to_dyck [1%nat; 2%nat]) = 4%nat /\ dyck_path_length (perm_to_dyck [2%nat; 1%nat]) = 4%nat. Proof. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.dyck_from_132_avoiding_small
null
1324-Avoiding-Permutation
dyck_path := list step.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.dyck_path
null
1324-Avoiding-Permutation
dyck_path_length (d : dyck_path) : nat := length d.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.dyck_path_length
null
1324-Avoiding-Permutation
is_dyck_path (path : dyck_path) : bool := is_valid_prefix path 0 && (length (filter (fun s => match s with Up => true | Down => false end) path) =? length (filter (fun s => match s with Up => false | Down => true end) path))%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.is_dyck_path
null
1324-Avoiding-Permutation
is_valid_prefix (path : dyck_path) (height : nat) : bool := match path with | [] => true | Up :: rest => is_valid_prefix rest (S height) | Down :: rest => match height with | O => false | S h => is_valid_prefix rest h end end.
Fixpoint
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.is_valid_prefix
null
1324-Avoiding-Permutation
max_end_1324_to_dyck : forall n, (n >= 1)%nat -> (n <= 5)%nat -> avoiding_with_max_at_end n = count_dyck_paths (n - 1). Proof. intros n Hge Hle. destruct n as [|[|[|[|[|[|]]]]]]; try lia; vm_compute; reflexivity. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.max_end_1324_to_dyck
null
1324-Avoiding-Permutation
perm_132_to_dyck_preserves_length : forall n, (n <= 4)%nat -> length (valid_132_avoiding_perms n) = count_dyck_paths n. Proof. intros n Hle. unfold valid_132_avoiding_perms. destruct n as [|[|[|[|[|]]]]]; try lia; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.perm_132_to_dyck_preserves_length
null
1324-Avoiding-Permutation
perm_to_dyck (p : list nat) : dyck_path := perm_to_dyck_aux p [].
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.perm_to_dyck
null
1324-Avoiding-Permutation
perm_to_dyck_aux (p : list nat) (stack : list nat) : dyck_path := match p with | [] => map (fun _ => Down) stack | x :: xs => let downs := length (filter (fun s => (s <? x)%nat) stack) in let new_stack := filter (fun s => negb (s <? x)%nat) stack in repeat Down downs ++ [Up] ++ perm_to_dyck_aux ...
Fixpoint
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.perm_to_dyck_aux
null
1324-Avoiding-Permutation
step : Type := | Up : step | Down : step.
Inductive
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.step
null
1324-Avoiding-Permutation
valid_132_avoiding_perms (n : nat) : list (list nat) := filter avoids_132 (perms_of_n n).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
DyckPaths.valid_132_avoiding_perms
null
1324-Avoiding-Permutation
avoiding_132_perms (n : nat) : list (list nat) := filter avoids_132 (perms_of_n n).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.avoiding_132_perms
null
1324-Avoiding-Permutation
bijection_count_match : forall n, (n >= 1)%nat -> (n <= 5)%nat -> length (max_end_perms n) = length (avoiding_132_perms (n - 1)). Proof. intros n Hge Hle. destruct n as [|[|[|[|[|[|]]]]]]; try lia; vm_compute; reflexivity. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.bijection_count_match
null
1324-Avoiding-Permutation
bijection_preserves_avoidance : forall sigma, Permutation sigma (seq 1 (length sigma)) -> avoids_1324 (sigma_to_extended sigma) = avoids_132 sigma. Proof. intros sigma Hperm. apply catalan_bijection_bool. apply sigma_elements_bound. exact Hperm. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.bijection_preserves_avoidance
null
1324-Avoiding-Permutation
extended_sigma_inverse : forall sigma, extended_to_sigma (sigma_to_extended sigma) = sigma. Proof. intros sigma. unfold extended_to_sigma, sigma_to_extended. apply removelast_app_singleton. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.extended_sigma_inverse
null
1324-Avoiding-Permutation
extended_to_sigma (p : list nat) : list nat := removelast p.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.extended_to_sigma
null
1324-Avoiding-Permutation
max_end_perms (n : nat) : list (list nat) := filter (fun p => avoids_1324 p && max_at_end p) (perms_of_n n).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.max_end_perms
null
1324-Avoiding-Permutation
sigma_elements_bound : forall sigma, Permutation sigma (seq 1 (length sigma)) -> forall x, In x sigma -> (x < S (length sigma))%nat. Proof. intros sigma Hperm x Hin. apply Permutation_in with (x := x) in Hperm. - apply in_seq in Hperm. lia. - exact Hin. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.sigma_elements_bound
null
1324-Avoiding-Permutation
sigma_extended_length : forall sigma, length (sigma_to_extended sigma) = S (length sigma). Proof. intros sigma. unfold sigma_to_extended. rewrite app_length. simpl. lia. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.sigma_extended_length
null
1324-Avoiding-Permutation
sigma_to_extended (sigma : list nat) : list nat := sigma ++ [S (length sigma)].
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
ExplicitBijection.sigma_to_extended
null
1324-Avoiding-Permutation
bijection_theorem_general : forall sigma n, (forall x, In x sigma -> (x < n)%nat) -> (~ contains_1324 (sigma ++ [n])) <-> (~ contains_132 sigma). Proof. exact max_end_1324_iff_prefix_132. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FinalSummary.bijection_theorem_general
null
1324-Avoiding-Permutation
coefficients_relation : forall n, (n <= 5)%nat -> nth n verified_G_coeffs 0%nat = (if (n =? 0)%nat then 1%nat else (nth (n-1) verified_C_coeffs 0%nat + nth n verified_R_coeffs 0%nat)%nat). Proof. intros n Hle. destruct n as [|[|[|[|[|[|]]]]]]; try lia; vm_compute; reflexivity. Qed.
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FinalSummary.coefficients_relation
null
1324-Avoiding-Permutation
verified_C_coeffs : list nat := [1; 1; 2; 5; 14; 42]%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FinalSummary.verified_C_coeffs
null
1324-Avoiding-Permutation
verified_G_coeffs : list nat := [1; 1; 2; 6; 23; 103]%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FinalSummary.verified_G_coeffs
null
1324-Avoiding-Permutation
verified_R_coeffs : list nat := [0; 0; 1; 4; 18; 89]%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FinalSummary.verified_R_coeffs
null
1324-Avoiding-Permutation
a_n (n : nat) : nat := count_1324_avoiding n.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.a_n
null
1324-Avoiding-Permutation
c_n (n : nat) : nat := nth n catalan 0%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.c_n
null
1324-Avoiding-Permutation
decomposition_formula : forall n, (n >= 1)%nat -> (n <= 5)%nat -> a_n n = (c_n (n - 1) + r_n n)%nat. Proof. intros n Hge Hle. unfold a_n, c_n, r_n. destruct n as [|[|[|[|[|[|]]]]]]; try lia. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity. - v...
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.decomposition_formula
null
1324-Avoiding-Permutation
interior_n0 : avoiding_with_max_interior 0 = 0%nat. Proof. vm_compute. reflexivity. Qed.
Example
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.interior_n0
null
1324-Avoiding-Permutation
interior_n1 : avoiding_with_max_interior 1 = 0%nat. Proof. vm_compute. reflexivity. Qed.
Example
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.interior_n1
null
1324-Avoiding-Permutation
interior_n2 : avoiding_with_max_interior 2 = 1%nat. Proof. vm_compute. reflexivity. Qed.
Example
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.interior_n2
null
1324-Avoiding-Permutation
interior_n3 : avoiding_with_max_interior 3 = 4%nat. Proof. vm_compute. reflexivity. Qed.
Example
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.interior_n3
null
1324-Avoiding-Permutation
interior_sequence : list nat := [0; 0; 1; 4; 18; 89]%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.interior_sequence
null
1324-Avoiding-Permutation
interior_values : forall n, (n <= 5)%nat -> avoiding_with_max_interior n = nth n interior_sequence 0%nat. Proof. intros n Hle. destruct n as [|[|[|[|[|[|]]]]]]; try lia. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity. - vm_compute. reflexivity....
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.interior_values
null
1324-Avoiding-Permutation
r_n (n : nat) : nat := avoiding_with_max_interior n.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationAnalysis.r_n
null
1324-Avoiding-Permutation
C_squared_conv (n : nat) : nat := convolution catalan_compute catalan_compute n.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationRefinement.C_squared_conv
null
1324-Avoiding-Permutation
C_squared_values : C_squared_conv 0 = 1%nat /\ C_squared_conv 1 = 2%nat /\ C_squared_conv 2 = 5%nat /\ C_squared_conv 3 = 14%nat /\ C_squared_conv 4 = 42%nat. Proof. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationRefinement.C_squared_values
null
1324-Avoiding-Permutation
convolution (f g : nat -> nat) (n : nat) : nat := fold_left Nat.add (map (fun k => f k * g (n - k))%nat (seq 0 (S n))) 0%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationRefinement.convolution
null
1324-Avoiding-Permutation
functional_eq_matches_G : forall n, (n <= 5)%nat -> functional_eq_rhs n = nth n G_seq 0%nat. Proof. intros n Hle. unfold functional_eq_rhs, G_seq, R_seq_extended. destruct n as [|[|[|[|[|[|]]]]]]; try lia; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationRefinement.functional_eq_matches_G
null
1324-Avoiding-Permutation
functional_eq_rhs (n : nat) : nat := if (n =? 0)%nat then 1%nat else if (n =? 1)%nat then 1%nat else (catalan_compute (n - 1) + nth n R_seq_extended 0%nat)%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationRefinement.functional_eq_rhs
null
1324-Avoiding-Permutation
geometric_C (n : nat) : nat := fold_left Nat.add (map catalan_compute (seq 0 (S n))) 0%nat.
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationRefinement.geometric_C
null
1324-Avoiding-Permutation
geometric_C_values : geometric_C 0 = 1%nat /\ geometric_C 1 = 2%nat /\ geometric_C 2 = 4%nat /\ geometric_C 3 = 9%nat /\ geometric_C 4 = 23%nat. Proof. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FunctionalEquationRefinement.geometric_C_values
null
1324-Avoiding-Permutation
left_avoids_132_count (n : nat) : nat := let perms := perms_of_n n in length (filter (fun p => avoids_1324 p && negb (max_at_end p) && avoids_132 (left_of_max p) ) perms).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FurtherStructure.left_avoids_132_count
null
1324-Avoiding-Permutation
left_avoids_132_values : left_avoids_132_count 3 = 4%nat /\ left_avoids_132_count 4 = 18%nat. Proof. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FurtherStructure.left_avoids_132_values
null
1324-Avoiding-Permutation
right_avoids_132_count (n : nat) : nat := let perms := perms_of_n n in length (filter (fun p => avoids_1324 p && negb (max_at_end p) && avoids_132 (right_of_max p) ) perms).
Definition
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FurtherStructure.right_avoids_132_count
null
1324-Avoiding-Permutation
right_avoids_132_values : right_avoids_132_count 3 = 4%nat /\ right_avoids_132_count 4 = 17%nat. Proof. repeat split; vm_compute; reflexivity. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
FurtherStructure.right_avoids_132_values
null
1324-Avoiding-Permutation
append_singleton_injective : forall (A : Type) (l1 l2 : list A) (x : A), l1 ++ [x] = l2 ++ [x] -> l1 = l2. Proof. intros A l1 l2 x Heq. apply (f_equal (@removelast A)) in Heq. rewrite !removelast_app_singleton in Heq. exact Heq. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
GeneralCatalanBijection.append_singleton_injective
null
1324-Avoiding-Permutation
append_singleton_length : forall (A : Type) (l : list A) (x : A), length (l ++ [x]) = S (length l). Proof. intros. rewrite app_length. simpl. lia. Qed.
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
GeneralCatalanBijection.append_singleton_length
null
1324-Avoiding-Permutation
avoids_1324_iff_not_contains : forall p, avoids_1324 p = true <-> ~ contains_1324 p. Proof. intros p. unfold avoids_1324, contains_1324_subseq, contains_1324. rewrite negb_true_iff. rewrite existsb_false_forall. split. - intros Hav [i [j [k [l H]]]]. unfold has_1324_at in H. destruct H as [Hij [Hj...
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
GeneralCatalanBijection.avoids_1324_iff_not_contains
null
1324-Avoiding-Permutation
avoids_132_iff_not_contains : forall p, avoids_132 p = true <-> ~ contains_132 p. Proof. intros p. unfold avoids_132, contains_132_subseq, contains_132. rewrite negb_true_iff. rewrite existsb_false_forall. split. - intros Hav [i [j [k H]]]. unfold has_132_at in H. destruct H as [Hij [Hjk [Hklen [H...
Lemma
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
GeneralCatalanBijection.avoids_132_iff_not_contains
null
1324-Avoiding-Permutation
catalan_bijection_bool : forall prefix n, (forall x, In x prefix -> (x < n)%nat) -> avoids_1324 (prefix ++ [n]) = avoids_132 prefix. Proof. intros prefix n Hbound. destruct (avoids_132 prefix) eqn:E132. - apply avoids_1324_iff_not_contains. apply avoids_132_iff_not_contains in E132. apply max_end_1324...
Theorem
Root
[ "Require Import Coq.Lists.List.", "Require Import Coq.Arith.Arith.", "Require Import Coq.Bool.Bool.", "Require Import Coq.Sorting.Permutation.", "Require Import Lia.", "Require Import ZArith." ]
Avoid1324.v
GeneralCatalanBijection.catalan_bijection_bool
null
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Omnia

Cross-domain Coq declarations from the Omnia formalization corpus, plus several library projects. One unified dataset combining declarations from every backed-up source repo with .v files.

The corpus spans law, medicine, engineering, history, mathematics, networking, cultural systems, and more. Every entry is a Coq declaration extracted from a machine-checked source repository.

Part of the phanerozoic proof assistant projects collection.

Schema

One row per declaration:

column type description
source_repo string GitHub repo name (e.g. acls-verified, CoqForge)
fact string declaration body, NOT including the leading keyword
type string declaration kind (Definition, Lemma, Theorem, Inductive, Record, etc.)
library string sub-library (subdirectory of theories/ or repo root)
imports list[string] Require Import statements active for the file
filename string source .v file path relative to the repo root
symbolic_name string declaration identifier, qualified by enclosing Module/Section
docstring string preceding (** ... *) doc comment, nullable

Rows are sorted by (source_repo, filename, symbolic_name) for stable diffs across regenerations.

Statistics

  • Total declarations: 71,021
  • Source repos contributing rows: 119
  • Source .v files processed: 715
  • Sub-libraries: 20
  • Declarations with docstrings: 19,118 (27%)
  • Top declaration types: Definition: 30453, Lemma: 20160, Theorem: 7893, Record: 3626, Example: 2688, Inductive: 2563, Fixpoint: 1438, Variable: 376
  • Top contributing repos: CoqForge (6796), Sammath-Naur (5216), AI-Bootstrap (4629), proof2weights (4319), antikythera-verified (3527), acls-verified (2252), apgar-verified (1872), physics-verified (1497), rfna-verified (1484), transfusion-verified (1393)

Coverage

Domains include but are not limited to:

  • Legal/Regulatory: tax law (1031 exchanges), maritime law (UNCLOS), constitutional structures, ancient legal codes
  • Medical/Clinical: ACLS protocols, APGAR scoring, sepsis criteria, transfusion compatibility, anesthesia
  • Engineering/Technical: avionics standards (ARINC 429), networking RFCs, spacecraft systems, electrical codes
  • Historical: battle chronologies, ancient civilizations, calendar systems
  • Mathematical: combinatorics, category theory, number theory, type theory
  • Cultural: chess variants, musical theory, liturgical calendars
  • Software: connected component labeling, theorem proving infrastructure

Extraction

Each row is produced by a deterministic Python extractor that:

  1. Tokenises Coq source while respecting nested comments, doc comments, and strings.
  2. Identifies top-level declarations by keyword.
  3. Determines each declaration's terminating sentence (. followed by whitespace) or proof terminator (Qed. / Defined. / Admitted. / Abort. / Save.), based on whether a proof block immediately follows the declaration head.
  4. Captures the immediately preceding (** ... *) doc comment when present.
  5. Tracks Module / Section nesting to qualify declaration names.

Same source state always produces the same parquet (rows in deterministic order).

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