Abstract
We construct models of the theory L 02 : = BASIC + Σ b0 -LIND: one where the predecessor function is not total and one not satisfying Σ 20 -PIND, showing that L 02 is strictly weaker that S 02 . The construction also shows that S 02 is not ∀∑ b0 -axiomatizable.
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© 1996 Springer-Verlag Berlin Heidelberg
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Johannsen, J. (1996). On sharply bounded length induction. In: Kleine Büning, H. (eds) Computer Science Logic. CSL 1995. Lecture Notes in Computer Science, vol 1092. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-61377-3_48
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DOI: https://doi.org/10.1007/3-540-61377-3_48
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