fact: Definition pr3bimodule {I : UU} {rings : I -> ring} (MM : multimodule rings) : multimodule_struct (pr2multimodule MM) := (pr2 (pr2 MM)).
imports: UniMath.Algebra.Modules.Core UniMath.Algebra.Groups UniMath.Algebra.Monoids UniMath.Algebra.RigsAndRings UniMath.Foundations.Preamble UniMath.Foundations.Sets