Require Import TestSuite.admit. Require Import Relation_Definitions RelationClasses Setoid SetoidClass. Section Bug. Context {A : Type} (R : relation A). Hypothesis pre : PreOrder R. Context `{SA : Setoid A}. Goal True. set (SA' := SA). assert ( forall SA0 : Setoid A, @PartialOrder A (@equiv A SA0) (@setoid_equiv A SA0) R pre ). rename SA into SA0. intro SA. admit. admit. Qed. End Bug.