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Thm* k:, r1,r2:k, q1,q2:. q1k+r1 = q2k+r2 q1 = q2 & r1 = r2 on [ ((i n)+(j n)+(((i rem n)+(j rem n)) n))n on [ +(((i rem n)+(j rem n)) rem n) on [ = on [ ((i+j) n)n+((i+j) rem n) ] {Auto would finish this now, but there would be too many steps for easy {reading. } |
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= ((i+j) n)n+((i+j) rem n) | 1 step |
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