Seminário 13/03/2018 (Caio S.)


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3 months ago by
Some proofs using elementary submodels
Terça, 19h s. 5-103

Using elementary submodels we will show that every compact, Hausdorff,  first countable topological space must have cardinality less or equal to the Continuum, and, with the same method, we will give an alternative proof for the delta system lemma

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