Brouwer's fan theorem

Published 31 Dec 2019 in math.LO | (2001.00064v2)

Abstract: Brouwer's fan theorem states that every bar is a uniform bar. We give an overview of the status of this axiom in Bishop's constructive mathematics. In particular, we describe the relationship between the fan theorem, the weak K\"onig lemma, and the uniform continuity theorem.

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Josef Berger

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