Abstract
In this article we present new methods in the theory of direct product decompositions of arbitrary structures.
These methods are based on works of the author on the logic of product structures and on certain product-theoretic operations on sentences. In addition, some results included here rely on certain combinatorial properties and in such questions we apply an extension of König Infinity Lemma, also due to the author.
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Vourtsanis, Y. Direct product decompositions of structures and theories. Algebra Universalis 35, 446–471 (1996). https://doi.org/10.1007/BF01197184
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DOI: https://doi.org/10.1007/BF01197184