ideals
Pronunciation:
/aɪˈdɪəlz//aɪˈdi.əlz/noun
Definitions
A perfect standard of beauty, intellect etc., or a standard of excellence to aim at.
A subring closed under multiplication by its containing ring.
(lattice theory) A non-empty lower set (of a partially ordered set) which is closed under binary suprema (a.k.a. joins).
A collection of sets, considered small or negligible, such that every subset of each member and the union of any two members are also members of the collection.