equivalence relation

[/ˌɛkwɪˈvæləns rɪˈleɪʃən/]
nounpl: equivalence relations
relação de equivalência
1. A mathematical relation that satisfies three properties: reflexivity (every element is related to itself), symmetry (if a is related to b, then b is related to a), and transitivity (if a is related to b and b is related to c, then a is related to c).
The relation of having the same remainder when divided by 5 is an equivalence relation on the set of integers.
A relação de ter o mesmo resto quando dividido por 5 é uma relação de equivalência no conjunto dos inteiros.
2. In logic and mathematics, a fundamental concept used to partition sets into equivalence classes where elements share a common property.
Congruence modulo n is a classic example of an equivalence relation.
Congruência módulo n é um exemplo clássico de uma relação de equivalência.
This is a specialized mathematical term used uniformly in both Brazilian Portuguese and Portuguese academic contexts. It is typically encountered in university-level discrete mathematics, abstract algebra, and set theory courses. The term has no colloquial usage and is restricted to formal mathematical discourse in both English and Portuguese-speaking countries.
Synonyms / Sinônimos
equivalenceequality relationcongruence relation
Antonyms / Antônimos
partial relationnon-reflexive relation

Regional Variations

General Brazilian
relação de equivalência
Standard term used in mathematics education and academic contexts
Portugal
relação de equivalência
Same usage as in Brazil; standard mathematical terminology
São Paulo
relação de equivalência
Commonly used in university mathematics courses
Rio de Janeiro
relação de equivalência
Standard academic usage, no regional variation

Related Words

reflexive propertysymmetric propertytransitive propertyequivalence classpartitionbinary relation

Related Idioms & Phrases

to establish an equivalence relation
to satisfy the equivalence relation
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