fact: Example ring_left_mult {R : ring} : R -> ringofendabgr R := ringfun_left_mult (rigisotorigfun (idrigiso R)).
imports: UniMath.Algebra.Modules.Core UniMath.Algebra.Modules.Multimodules UniMath.Algebra.Monoids UniMath.Algebra.Groups UniMath.Algebra.RigsAndRings UniMath.Foundations.Preamble UniMath.MoreFoundations.Tactics