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Proofreading FirstClassFunctions

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Adam Chlipala 2020-02-09 13:17:48 -05:00
parent a0993b537d
commit c050ec21ae
1 changed files with 2 additions and 2 deletions
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FirstClassFunctions.v
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@ -164,7 +164,7 @@ Fixpoint sorted {A} (le : A -> A -> bool) (ls : list A) : bool :=
end
end.
(* [insert] preserves sortedness. Note the crucial hypothesis that comaprator
(* [insert] preserves sortedness. Note the crucial hypothesis that comparator
* [le] is *total*: any two elements are related by it, in one order or the
* other. *)
Lemma insert_sorted : forall {A} (le : A -> A -> bool) a,
@ -189,7 +189,7 @@ Proof.
rewrite H3, H4; trivial.
rewrite H1; simplify.
trivial.
Qed.
Qed.
(* Main theorem: [insertion_sort] produces only sorted lists. *)
Theorem insertion_sort_sorted : forall {A} (le : A -> A -> bool),