• 2022-06-02
    已知集合S上运算*满足结合律与交换律,证明:对S中任意元素[tex=3.286x1.214]S1r9TKg/0CvhrA1vxbq3mQ==[/tex]有[tex=10.714x1.357]up/SydoB7fp69OFGWhuiVI+GPXkTcxiale+BLijAznFPiIn0yuhcaYtoSj3T36kJ[/tex]
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