equivalence relation

== English == === Noun === equivalence relation (plural equivalence relations) (set theory) A binary relation that is reflexive, symmetric and transitive. ==== Hypernyms ==== preorder ==== Hyponyms ==== bijection congruence congruence relation equality homeomorphism homotopy isometry isomorphism similarity ==== Related terms ==== equivalence class setoid ≡ ~ ==== Translations ====