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Point-Set Topology
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Separation Axioms
Separation Axioms
Separation Axioms
Concepts
T0, T1, and T2 (Hausdorff) Spaces
Regular (T3) and Normal (T4) Spaces
Completely Regular and Tychonoff Spaces
Theorems
Urysohn Lemma
Tietze Extension Theorem
Proofs
Proof of Urysohn Lemma
Mathematics Lecture Notes