fact: Definition op1 {X : apsetwith2binop} : binop X := op1 (X := apsetwith2binop_setwith2binop X).
imports: UniMath.Algebra.BinaryOperations UniMath.Foundations.Propositions UniMath.MoreFoundations.Sets UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.DecidablePropositions