fact: Definition might_be_emptyT := lattice_for nonemptyT.
imports: Fiat.Common.Coq__8_4__8_5__Compat Coq.ZArith.ZArith Fiat.Parsers.ContextFreeGrammar.Core Fiat.Parsers.ContextFreeGrammar.PreNotations Fiat.Parsers.StringLike.Properties Fiat.Parsers.BaseTypes Fiat.Parsers.Splitters.RDPList Fiat.Parsers.ContextFreeGrammar.Fix.FromAbstractInterpretationDefinitions Fiat.Parsers.ContextFreeGrammar.Fix.Fix Fiat.Parsers.ContextFreeGrammar.Fix.FromAbstractInterpretation Fiat.Common