Definition isantisymmresrel {X : UU} (L : hrel X) (P : hsubtype X) (isl : isantisymm L) : isantisymm (resrel L P). Proof. intros. intros x1 x2 r12 r21. apply (invmaponpathsincl _ (isinclpr1carrier _) _ _ (isl _ _ r12 r21)). Defined.
Require Import UniMath.Foundations.UnivalenceAxiom.