fact: Definition ascii_beq_true_iff x y : ascii_beq x y <-> x = y := beq_true_iff x y.
imports: Coq.Lists.List Coq.Lists.SetoidList Coq.Bool.Bool Coq.Arith.PeanoNat Coq.Strings.Ascii Coq.Strings.String Coq.Logic.Eqdep_dec Fiat.Common