设[p=align:center][tex=19.143x5.929]rZM5/OPAdr7aX+kNl9iwpOu455BiM+AQq2kHgrtqn/mhG4npBOyURxOiVtglnBl5FJ8nEGzVAQxPqYdthqfiMOttujAiMoNpCwY3JikemNe8zL9Nf9Kx0VK9FU3HkzCjY351M3Zsw/FlhM6rg3lkGaJC0vrVqoo5OX2RDchYNNPjvfCZItVp/89wWIF6NnAZBrSV3prmbO5FEN3IcbBotffNLE9BZlztfzzUlf/+daTSSpsy/twJgsguYd8Zu+Sf5IdSao4ip2A/enpzUwVnCB8pn/zllQ8Xy774IfAYdInu+jS/iAd/fx6z5ToxD1eI[/tex]证明:[tex=0.786x1.0]AE39d9jt5lmaK/QknwwnQQ==[/tex]对方阵普通乘法作成一个群.
设[p=align:center][tex=19.143x5.929]rZM5/OPAdr7aX+kNl9iwpOu455BiM+AQq2kHgrtqn/mhG4npBOyURxOiVtglnBl5FJ8nEGzVAQxPqYdthqfiMOttujAiMoNpCwY3JikemNe8zL9Nf9Kx0VK9FU3HkzCjY351M3Zsw/FlhM6rg3lkGaJC0vrVqoo5OX2RDchYNNPjvfCZItVp/89wWIF6NnAZBrSV3prmbO5FEN3IcbBotffNLE9BZlztfzzUlf/+daTSSpsy/twJgsguYd8Zu+Sf5IdSao4ip2A/enpzUwVnCB8pn/zllQ8Xy774IfAYdInu+jS/iAd/fx6z5ToxD1eI[/tex]证明:[tex=0.786x1.0]AE39d9jt5lmaK/QknwwnQQ==[/tex]对方阵普通乘法作成一个群.
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