fact: Definition Iso' (F G: graph) (fv: F -> G) (fv': G -> F) (fe: edge F -> edge G) (fe': edge G -> edge F) fd: cancel fv fv' -> cancel fv' fv -> cancel fe fe' -> cancel fe' fe -> is_ihom fv fe fd -> F ≃ G.
imports: Coq(Morphisms RelationClasses) mathcomp(all_ssreflect) GraphTheory(edone finite_quotient preliminaries bij) GraphTheory(equiv digraph setoid_bigop structures)