commutative

com-, 强调。-mut, 改变，交换，词源同move, mutable.

commutative (adj.)

1530s, from Medieval Latin commutativus, from Latin commutat-, past participle stem of commutare (see commute (v.)).

1. Multiplication of permutations , unlike multiplication of numbers, is not always commutative.

置换的乘法不同于数的乘法, 它并不一定满足交换律.

2. The central notion in commutative algebra is that of a prime ideal.

交换代数中最核心的概念就是素理想.

3. It'should be clear that vector addition is commutative.

可清楚地看0剑0矢量加法满足对易律.

4. The groups of the solvable equations are commutative.

可解方程的群都是交换群.

5. Basic properties of the dense sub - semigroups in commutative groups are studied.

引入了可换群的稠密子群,并研究了它的基本性质.