fact: Definition eutt : itree E R -> itree E R -> Prop := ITree.Eq.Eqit.eutt eq.
imports: Coq(Setoid Morphisms) ITree(Eq.Shallow) ITree.Core.ITreeDefinition ITree.Basics.Basics ITree.Indexed.Sum ITree.Interp.Interp ITree.Interp.Recursion ITree(Eq.Eqit Eq.UpToTaus Interp.InterpFacts Interp.RecursionFacts)