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2006 The Embedding Theorem: Its Further Developments and Consequences. Part 1
Alexei Y. Muravitsky
Notre Dame J. Formal Logic 47(4): 525-540 (2006). DOI: 10.1305/ndjfl/1168352665

Abstract

We outline the Gödel-McKinsey-Tarski Theorem on embedding of Intuitionistic Propositional Logic Int into modal logic S4 and further developments which led to the Generalized Embedding Theorem. The latter in turn opened a full-scale comparative exploration of lattices of the (normal) extensions of modal propositional logic S4, provability logic GL, proof-intuitionistic logic KM, and others, including Int. The present paper is a contribution to this part of the research originated from the Gödel-McKinsey-Tarski Theorem. In particular, we show that the lattice ExtInt of intermediate logics is likely to be the only constructing block with which ExtS4, the lattice of the extensions of S4, can be formed. We, however, advise the reader that our exposition is different from the historical lines along which some of the results discussed below came to light. Part 1, presented here, deals mostly with structural issues of extensions of logics, where algebraic semantics, though underlying this approach, is used merely occasionally. Part 2 will be devoted to algebraic analysis of the Embedding Theorem.

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Alexei Y. Muravitsky. "The Embedding Theorem: Its Further Developments and Consequences. Part 1." Notre Dame J. Formal Logic 47 (4) 525 - 540, 2006. https://doi.org/10.1305/ndjfl/1168352665

Information

Published: 2006
First available in Project Euclid: 9 January 2007

zbMATH: 1130.03018
MathSciNet: MR2272086
Digital Object Identifier: 10.1305/ndjfl/1168352665

Subjects:
Primary: 03B45, 03B53

Rights: Copyright © 2006 University of Notre Dame

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