proposition: Lemma get_update_unconstr_eq : forall (db_schema : RawQueryStructureSchema) (qs : UnConstrQueryStructure db_schema) (index : _) ens, GetUnConstrRelation (UpdateUnConstrRelation qs index ens) index = ens.
proof: Proof. unfold UpdateUnConstrRelation, GetUnConstrRelation. intros; rewrite ith_replace2_Index_eq; reflexivity. Qed.
imports: Coq.Lists.List Coq.Strings.String Coq.Logic.FunctionalExtensionality Coq.Sets.Ensembles Coq.Arith.Arith Fiat.Computation.Core Fiat.ADT.ADTSig Fiat.ADT.Core Fiat.Common.StringBound Fiat.Common.ilist2 Fiat.Common.ilist Fiat.ADTNotation.BuildADT Fiat.ADTNotation.BuildADTSig Fiat.Common.Ensembles.IndexedEnsembles Fiat.QueryStructure.Specification.Representation.Notations Fiat.QueryStructure.Specification.Representation.Heading Fiat.QueryStructure.Specification.Representation.Tuple Fiat.QueryStructure.Specification.Representation.Schema Fiat.QueryStructure.Specification.Representation.Relation Fiat.QueryStructure.Specification.Representation.QueryStructureSchema