proposition: Lemma str_le_take {str n} : take n str ≤s str.
proof: Proof. destruct (le_gt_dec (length str) n). { right; apply take_long; assumption. } { left; rewrite take_short_length; omega. } Qed.
imports: Fiat.Common.Coq__8_4__8_5__Compat Coq.ZArith.ZArith Fiat.Common Fiat.Common.List.Operations Fiat.Common.List.ListFacts Fiat.Common.Le Fiat.Common.Tactics.SetoidSubst Fiat.Common.Tactics.IsClosed Fiat.Parsers.StringLike.Core Fiat.Common.UIP