整式の基本法則

結合則(associative law)
和の結合則
(a+b)+c=a+(b+c)
積の結合則
(ab)c=a(bc)
演算\circの結合則
(a\circ b)\circ c=a \circ(b \circ c)

交換法則(commutative law)


加法の交換則
a+b=b+a
乗法の交換則
ab=ba
演算\circの交換則
a\circ b=b\circ a

分配法則(distributive law)


a(b+c)=ab+ac,(a+b)c=ac+bc

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