Remark 1

Tag 0B0F, permanent. Cite it as [Bourbaki, Tag 0B0F].

General Topology, chapter I, § 2. Continuous functions

In the ordered set of all topologies on a set $X$ , the topology in which the only open sets are $\varnothing$ and $X$ is the coarsest and the discrete topology is the finest.

Bourbaki puts the proof directly after the statement, so what is above is the statement and its proof together.

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Cites

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