这里我们用到了乘法结合律也可以用消去律,本来这些运算律是对正整数乘法适用的,但对于有分数参加的乘法我们也规定适用。
Here we have used the associative law or the cancellation law for multiplication, which are satisfied for natural Numbers, now we assume they are satisfied with fraction Numbers.
矩阵乘法是有结合律的。
我们容易验证乘法满足结合律和交换律,并且由加法结果的唯一性得出乘法结果的唯一性和乘法消去律。
We then can verify the associative law and the commutative law for multiplication, and the uniqueness of the result of addition indicates the uniqueness and the cancellation law for multiplication.
我们容易验证乘法满足结合律和交换律,并且由加法结果的唯一性得出乘法结果的唯一性和乘法消去律。
We then can verify the associative law and the commutative law for multiplication, and the uniqueness of the result of addition indicates the uniqueness and the cancellation law for multiplication.
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