fact: Definition eqit_ b1 b2 vclo sim : itree E R1 -> itree E R2 -> Prop := fun t1 t2 => eqitF b1 b2 vclo sim (observe t1) (observe t2).
imports: Coq(Structures.Orders Program Setoid Morphisms Relations) Paco(paco) ITree(Basics.Basics Basics.Utils Basics.HeterogeneousRelations Core.ITreeDefinition Eq.Paco2 Eq.Shallow)