Topic
ideal.
in order theory, a nonempty, upward‐directed, downward‐closed subset of a preordered set
The journal
Open the journal →The conversation starts in the journal — be the first to post.
About ideal
In mathematical order theory, an ideal is a special subset of a partially ordered set (poset). Although this term historically was derived from the notion of a ring ideal of abstract algebra, it has subsequently been generalized to a different notion. Ideals are of great importance for many constructions in order and lattice theory.
Everything about ideal →