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Proofs of Urysohn's Lemma and Related Theorems by Means of Zorn's Lemma - MaRDI portal

Proofs of Urysohn's Lemma and Related Theorems by Means of Zorn's Lemma

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Publication:4403441

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DOI10.2307/2688870zbMath0277.54017OpenAlexW4234097242MaRDI QIDQ4403441

Robert L. Blair

Publication date: 1974

Full work available at URL: https://doi.org/10.2307/2688870

Mathematics Subject Classification ID

Higher separation axioms (completely regular, normal, perfectly or collectionwise normal, etc.) (54D15) Extension of maps (54C20) Axiom of choice and related propositions (03E25)

Related Items (2)

A short proof of the Tietze-Urysohn extension theorem ⋮ PROOFS OF URYSOHN’S LEMMA AND THE TIETZE EXTENSION THEOREM VIA THE CANTOR FUNCTION

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