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## Concept EqualityComparable

EqualityComparable

## Description

Equality Comparable types must have `==` and `!=` operators.

## Notation

X
  A type playing the role of comparable-type in the EqualityComparable concept.
`x`, `y`
  Objects of type X

## Valid expressions

Name | Expression | Type
--- | --- | ---
Equality test | x == y | Convertible to bool
Inequality test | x != y | Convertible to bool

## Models

- int
- std::vector<int>

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