fact: Definition sum_endecode {x y} (p : sum_code x y) : sum_encode (sum_decode p) = p.
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