fact: Definition default_of_nonterminal : String.string -> default_nonterminal_carrierT := fun nt => List.first_index_default (string_beq nt) (List.length valid_nonterminals) valid_nonterminals.
imports: Fiat.Common.Coq__8_4__8_5__Compat Coq.ZArith.ZArith Fiat.Common.Enumerable Fiat.Common.Enumerable.BoolProp Fiat.Common.List.Operations Fiat.Common.List.ListFacts Fiat.Common.Equality Fiat.Parsers.ContextFreeGrammar.Core Fiat.Parsers.ContextFreeGrammar.PreNotations Fiat.Common.Gensym Fiat.Common.Tactics.BreakMatch Fiat.Common.Tactics.DestructHead