fact: Definition inl_map2_compat S S' u := [/\ fgraph u, domain u = isI S, forall i, inc i (isI S) -> function_prop (Vg u i) (Vg (isE S) i) (Vg (isE S') i) & forall i j, gle (isr S) i j -> Vg (isf S') (J i j) \co Vg u i = Vg u j \co Vg (isf S) (J i j) ].
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat)