单词 | commutative law |
释义 | commutative law The mathematical law stating that the value of an expression is independent of the order of combination of the numbers, symbols, or terms in the expression. The commutative law for addition applies if x + y = y + x. The commutative law of multiplication applies if x × y = y × x. Subtraction and division are not commutative. Compare associative law; distributive law |
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