proposition: Lemma modulefun_paths2 {R : ring} {M N : module R} {f g : modulefun M N} (p : pr1 f ~ pr1 g) : f = g.
proof: Proof. exact (modulefun_paths (funextfun _ _ p)). Defined.
imports: UniMath.MoreFoundations.Tactics UniMath.Algebra.RigsAndRings UniMath.Algebra.Groups UniMath.Algebra.Monoids