ThmDex – An index of mathematical definitions, results, and conjectures.
Set of symbols
Alphabet
Deduction system
Theory
Zermelo-Fraenkel set theory
Set
Binary cartesian set product
Binary relation
Binary endorelation
Preordering relation
Partial ordering relation
Ordering relation
Definition D1707
Ordered set
Formulation 0
An D548: Ordered pair $P = (X, {\preceq})$ is an ordered set if and only if
(1) $X$ is a D11: Set
(2) ${\preceq}$ is an D378: Ordering relation on $X$
Children
Dedekind cut