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ON WEIHRAUCH REDUCIBILITY AND INTUITIONISTIC REVERSE MATHEMATICS

Published online by Cambridge University Press:  15 May 2017

RUTGER KUYPER
RUTGER KUYPER*
Affiliation:
SCHOOL OF MATHEMATICS AND STATISTICSVICTORIA UNIVERSITY OF WELLINGTONPO BOX 600, WELLINGTON 6140NEW ZEALANDE-mail: mail@rutgerkuyper.com
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Abstract

We show that there is a strong connection between Weihrauch reducibility on one hand, and provability in EL0, the intuitionistic version of RCA0, on the other hand. More precisely, we show that Weihrauch reducibility to the composition of finitely many instances of a theorem is captured by provability in EL0 together with Markov’s principle, and that Weihrauch reducibility is captured by an affine subsystem of EL0 plus Markov’s principle.

Keywords

03B3003B2003D3003F35reverse mathematicsWeihrauch reducibilityintuitionistic logic
Type
Articles
Information
The Journal of Symbolic Logic , Volume 82 , Issue 4 , December 2017 , pp. 1438 - 1458
Copyright
Copyright © The Association for Symbolic Logic 2017 

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