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MLQ
2010
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MLQ 2010
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The Ultrafilter Closure in ZF
15 years 2 months ago
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: It is well known that, in a topological space, the open sets can be characterized using filter convergence. In ZF (Zermelo-Fraenkel set theory without the Axiom of Choice), we c...
Gonçalo Gutierres
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2010
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Unavoidable sequences in constructive analysis
15 years 2 months ago
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Joan Rand Moschovakis
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