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在数学中,反交换律(英语:Anticommutative property)是某些运算的特定属性。在满足反交换律的运算中,将前后两个参数交换位置,则会产生与交换前相反的结果。
例如,减法运算是一个满足反交换律的运算,因为它满足
,例如
。
李代数也是一个满足反交换律的例子。
定义
在数学中,反交换律的定义如下:
令
是一个加法群, “*” 是定义在
上的二元运算。
如果“*”满足以下条件:对于任意的
,有
,那么,我们说二元运算“*”满足反交换律。
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