# Equivalence-class

**noun**, Mathematics.

1.

the set of elements associated by an equivalence relation with a given element of a set.

Tagged: e

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testing A software testing technique that involves identifying a small set of representative input values that invoke as many different input conditions as possible. For example, for binary search the following partitions exist: inputs that do or do not conform to pre-conditions, Inputs where the key element is or is not a member of the […]

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- Equivalence-relation
noun, Mathematics. 1. a relation that is reflexive, symmetrical, and transitive, as equality. noun 1. (logic, maths) a relation that is reflexive, symmetric, and transitive: it imposes a partition on its domain of definition so that two elements belong to the same subset if and only if the relation holds between them

- Equivalency
[ih-kwiv-uh-luh n-see] /ɪˈkwɪv ə lən si/ noun, plural equivalencies. 1. (defs 1, 2). /ˌɛkwɪˈveɪlənsɪ/ noun 1. (chem) the state of having equal valencies