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
Definition D4424
Binary endorelation
Formulation 0
A D4: Binary relation $(X \times Y, R)$ is a binary endorelation if and only if \begin{equation} X = Y \end{equation}
Children
Antisymmetric binary relation
Asymmetric binary relation
Constancy relation
Digraph
Equivalence relation
Reflexive binary relation
Transitive binary relation