Assertion: algebra's set | /r/HasAspect | an identity element
Facets:
value: for addition
type: PURPOSE
Source sentences:
text: Not all sets and operator combinations have an identity element; for example, the set of positive natural numbers (1, 2, 3, ...) has no identity element for addition.
text: Not all sets and operator combinations have an identity element; for example, the set of positive natural numbers (1, 2, 3, ...) has no identity element for addition.