Remark 2
Tag 0BVQ, permanent. Cite it as [Bourbaki, Tag 0BVQ].
General Topology, chapter V, § 3. Topological characterization of the groups R and T
Theorem 2 shows in particular that every topological group which is homeomorphic to the group is necessarily isomorphic to .
Bourbaki puts the proof directly after the statement, so what is above is the statement and its proof together.
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