See Also: approachable(dictionary)
approachable(dictionary)
equivalence(dictionary)
Equivalence(medicine)
Yield equivalence(money)
equivalence relation(encyclopedia)
equivalence principle(encyclopedia)
equivalence point(medicine)
equivalence zone(medicine)
Stimulus equivalence(health)

equivalence relation (sh) and approachable (iou)


equivalence relation (sh)




In mathematics, a generalization of the idea of equality between elements of a set.

All equivalence relations (e.g., that symbolized by the equals sign) obey three conditions: reflexivity (every element is in the relation to itself), symmetry (element A has the same relation to element B that B has to A), and transitivity (see transitive law). Congruence of triangles is an equivalence relation in geometry. Members of a set are said to be in the same equivalence class if they have an equivalence relation.


approachable (iou)



approachable adjective. L16.
[from APPROACH verb + -ABLE.]
Able to be approached; accessible (lit. & fig.), affable.
S. Johnson He that regards the welfare of others should make his virtue approachable. Horace Walpole The town was..approachable only by a narrow causeway. T. Roethke Irish writers of the non-sullen and approachable variety.
approacha'bility noun M19.
approachableness noun (rare) M18.