Assertion: operation | /r/HasProperty | idempotent
Facets:
Source sentences:
text: An operation may or may not have certain properties, for example it may be associative, commutative, anticommutative, idempotent, and so on.
text: If the operation is associative, commutative and idempotent, aa = a, then the value of (ab)c depends only on the set {a, b, c}.
text: If the operation is idempotent, then there is no harm in performing the operation two or more times.