proposition: Lemma lt_helper_1' {x y} : x < S (x + y).
proof: Proof. omega. Qed.
imports: Fiat.Common.Coq__8_4__8_5__Compat Coq.Strings.String Coq.ZArith.ZArith Fiat.Parsers.ContextFreeGrammar.Core Fiat.Parsers.Reachable.MaybeEmpty.Core Fiat.Parsers.Reachable.MaybeEmpty.Minimal Fiat.Parsers.BaseTypes Fiat.Parsers.BaseTypesLemmas Fiat.Parsers.Reachable.MaybeEmpty.WellFounded Fiat.Common