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can reduce composite factor1 1. k : {2...}
2. g : {2..k} x,y:{2..k}.
xy<k (h:({2..k}).
({2..k}(g) = {2..k}(h)
(& h(xy) = 0
(& (u:{2..k}. xy<uh(u) = g(u)))
By:
{Without loss of generality, assume xy and observe that y<xy (hence xy {Without loss of generality, assume xy and observe that y<xy (hence {2..k})
{}
SideProof