ABSTRACT
To show the opposite inclusion, pRT o (p2 p /7T RT c (p 1 p2) RT ) we have to show that p(r) k pi C I _ p2) RT and Pim)°(P2°P(111) )°' • *°(P2°Iiiin) ) C (P1UP2) RT for all m, 11,... ,ln E /V and n > 1. But this follows from the definition of (P1 U p2)RT.
