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Some principles weaker than Markov’s principle

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Abstract

We systematically study several principles and give a principle which is weaker than disjunctive Markov’s principle (MP). We also show that the principle is underivable and strictly weaker than MP in certain extensions of the system EL of elementary analysis.

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Correspondence to Hajime Ishihara.

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Fujiwara, M., Ishihara, H. & Nemoto, T. Some principles weaker than Markov’s principle. Arch. Math. Logic 54, 861–870 (2015). https://doi.org/10.1007/s00153-015-0444-9

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  • DOI: https://doi.org/10.1007/s00153-015-0444-9

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