Example 2

Tag 03SC, permanent. Cite it as [Bourbaki, Tag 03SC].

Theory of Sets, chapter II, § 6. Equivalence relations

The relation " $x = y$ and $x \in E$ " is an equivalence relation on E whose graph is the diagonal of $E \times E$ .

Bourbaki sets the proof directly after the statement, and the corpus does not separate them, so what is above is the statement and its proof together.

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