DEFINITION wf3_pc3_conf() TYPE = ∀g:G.∀c1:C.∀t1:T.∀t2:T.(pc3 c1 t1 t2)→∀c2:C.(wf3 g c1 c2)→∀u1:T.(ty3 g c1 t1 u1)→∀u2:T.(ty3 g c1 t2 u2)→(pc3 c2 t1 t2) BODY =Show proof