Lemma isreflabgrdiffrel (X : abmonoid) {L : hrel X} (is : isbinophrel L) (isl : isrefl L) : isrefl (abgrdiffrel X is). Proof. refine (isreflquotrel _ _). apply isreflabgrdiffrelint. - apply is. - apply isl. Defined.
Require Import UniMath.MoreFoundations.Orders. Require Import UniMath.MoreFoundations.Subtypes.