fact: Definition minimal_pb'_productions__of__pb'_productions {pats : productions Char} (p : pb'_productions G valid0 pats) : minimal_pb'_productions G valid0 pats.
imports: Fiat.Common.Coq__8_4__8_5__Compat Coq.Strings.String Coq.ZArith.ZArith Fiat.Parsers.ContextFreeGrammar.Core Fiat.Parsers.Reachable.ParenBalanced.Core Fiat.Parsers.Reachable.ParenBalanced.WellFounded Fiat.Parsers.BaseTypes Fiat.Parsers.BaseTypesLemmas Fiat.Common