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Difference between revisions of "Post algebra"

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An algebra <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/p/p073/p073990/p0739901.png" />, where <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/p/p073/p073990/p0739902.png" /> is a set of functions and <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/p/p073/p073990/p0739903.png" /> is a set of operations equivalent to composition operations with different types of restrictions. Finite-valued and countable-valued logics, logics of non-homogeneous functions, etc., are examples of Post algebras. In fact, the problems encountered in the theory of Post algebras essentially coincide with the problems in the theory of many-valued logic.
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An algebra $(P,\Omega)$, where $P$ is a set of functions and $\Omega$ is a set of operations equivalent to composition operations with different types of restrictions. Finite-valued and countable-valued logics, logics of non-homogeneous functions, etc., are examples of Post algebras. In fact, the problems encountered in the theory of Post algebras essentially coincide with the problems in the theory of many-valued logic.
  
For references see [[Many-valued logic|Many-valued logic]].
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For references see [[Many-valued logic]].
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Latest revision as of 23:24, 14 November 2017

An algebra $(P,\Omega)$, where $P$ is a set of functions and $\Omega$ is a set of operations equivalent to composition operations with different types of restrictions. Finite-valued and countable-valued logics, logics of non-homogeneous functions, etc., are examples of Post algebras. In fact, the problems encountered in the theory of Post algebras essentially coincide with the problems in the theory of many-valued logic.

For references see Many-valued logic.

How to Cite This Entry:
Post algebra. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Post_algebra&oldid=42294
This article was adapted from an original article by V.B. Kudryavtsev (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article