fact: Hypothesis Hop : forall v1 v2 t1 t2, Rel v1 t1 -> Rel v2 t2 -> Rel (vop v1 v2) (top t1 t2).
imports: Coq(Rdefinitions Raxioms RIneq Rbasic_fun) mathcomp.ssreflect(ssreflect ssrfun ssrbool eqtype ssrnat seq bigop) MathComp1or2