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Modular Counting and Substitution of Structures

Published online by Cambridge University Press:  15 February 2005

E. SPECKER
Affiliation:
Eidgenössische Technische Hochschule Zürich, ETH Zentrum, HG, Rämistrasse 101, CH-8092 Zürich (e-mail: specker@math.ethz.ch)

Abstract

The aim of this paper is to point to a difference between binary and hyperary structures. The modular counting functions of a class of structures defined by a sentence of second-order monadic logic with equality, based on binary relations, are ultimately periodic. However, this is not the case for sentences based on quaternary relations.

Type
Paper
Copyright
© 2005 Cambridge University Press

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