proposition: Lemma IR_mult_as_CR : forall x y, (IRasCR (x[*]y)==(IRasCR x * IRasCR y))%CR.
proof: Proof. apply (map_pres_mult _ _ (iso_map_rht _ _ CRIR_iso)). Qed.
imports: CoRN.algebra.RSetoid CoRN.metric2.Metric CoRN.metric2.UniformContinuity CoRN.reals.CauchySeq CoRN.reals.iso_CReals CoRN.reals.R_morphism CoRN.reals.fast.CRArith CoRN.model.reals.CRreal CoRN.tactics.CornTac