交こう換かん法ほう則そく

noun

commutative law

A fundamental law in mathematics stating that the order of operands does not affect the result, e.g., a+b = b+a or a×b = b×a.

• 交こう換かん法ほう則そくは、足たし算ざんと掛かけ算ざんで成なり立たつ。

  The commutative law holds for addition and multiplication.

• 引ひき算ざんには交こう換かん法ほう則そくが当あてはまらない。

  The commutative law does not apply to subtraction.