fact: Definition merge2 (G: graph2) (r: equiv_rel G) := point (merge G r) (\pi input) (\pi output).
imports: HB(structures) Coq(Setoid Morphisms) mathcomp(all_ssreflect) GraphTheory(edone finite_quotient preliminaries bij equiv) GraphTheory(setoid_bigop structures pttdom mgraph ptt)