Definition islapbinop {X : tightapSet} (op : binop X) := ∏ x, isapunop (λ y, op y x).
Require Import UniMath.Foundations.Propositions. Require Import UniMath.MoreFoundations.Sets. Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.DecidablePropositions.