fact: Definition h_merge_union_Ke1 (e: edge (merge_seq (union F K) h)) : edge (merge_seq F union_K_pairs) := match e with inl e => e | inr e => match ke e with end end.
imports: Coq(Morphisms RelationClasses) mathcomp(all_ssreflect) GraphTheory(edone finite_quotient preliminaries bij) GraphTheory(equiv digraph setoid_bigop structures)