“Simple” practice involves an application of the commutative law.
Negative Numbers may be regarded as resulting from the commutative law for addition and subtraction.
This is included in the preceding, but it is simpler in that the various operations are commutative.
Often the meaning of a sentence tacitly implies that the commutative law does not hold.
1530s, from Medieval Latin commutativus, from Latin commutat-, past participle stem of commutare (see commute (v.)).
commutative Of or relating to binary operations for which changing the order of the inputs does not change the result of the operation. For example, addition is commutative, since a + b = b + a for any two numbers a and b, while subtraction is not commutative, since a - b ` a - b unless both a and b are zero. See also associative, distributive. |