fact: Definition eq_RAns {E1 E2} (RAns1 RAns2: forall A B, E1 A -> A -> E2 B -> B -> Prop) := forall A B, eq_rel (@RAns_pair E1 E2 RAns1 A B) (@RAns_pair E1 E2 RAns2 A B).
imports: Coq(Program Setoid Morphisms RelationClasses) Paco(paco) ITree(ITree ITreeFacts Core.Subevent Basics.HeterogeneousRelations Eq.Rutt Props.Leaf)