Rel, bicategory of relations, allegory
left and right euclidean;
extensional, well-founded relations.
A (binary) relation on a set is reflexive if every element of is related to itself:
In the language of the -poset Rel of sets and relations, a relation is reflexive if it contains the identity relation on :
A set with a reflexive relation is the same as a loop digraph with function such that
reflexive relation, irreflexive relation
Last revised on July 21, 2023 at 10:45:18. See the history of this page for a list of all contributions to it.