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Interpolation, preservation, and pebble games

Published online by Cambridge University Press:  12 March 2014

Jon Barwise
Affiliation:
Departments of Computer Science, Mathematics and Philosophy, Indiana University, Bloom Ington, IN 47405, USA E-mail: barwise@cs.indiana.edu
Johan van Benthem
Affiliation:
Institute for Logic, Language and Computation, University of Amsterdam, Amsterdam, The Netherlands E-mail: johan@wins.uva.nl

Abstract

Preservation and interpolation results are obtained for L∞ω and sublogics L∞ω such that equivalence in can be characterized by suitable back-and-forth conditions on sets of partial isomorphisms.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 1999

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