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