Assertion: ring's ideal | /r/HasProperty | subring
Facets:
value: with the properties
type: OTHER
value: without unity
type: OTHER
Source sentences:
text: Proper ideals are subrings (without unity) that are closed under both left and right multiplication by elements from R.
text: An Ideal, I, is a subset of a Ring, R, with the properties: 1) I is a subgroup of the additive group of R and 2) for every i in I and every r in R,