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arXiv · 1511.02782

On the construction of fully interpreted formal languages which posses their truth predicates

Seppo Heikkilä
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Abstract

We shall construct by ordinary recursion method subsets to the set $D$ of Gödel numbers of the sentences of a language $\mathcal L$. That language is formed by sentences of a fully interpreted formal language $L$, called an MA language, and sentences containing a monadic predicate letter $T$. From the class of the constructed subsets of $D$ we extract one set $U$ by transfinite recursion method. Interpret those sentences whose Gödel numbers are in $U$ as true, and their negations as false. These sentences together form an MA language. It is a sublanguage of $\mathcal L$ having $L$ as its sublanguage, and $T$ is its truth predicate.

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Seppo Heikkilä. 2015-11-27. On the construction of fully interpreted formal languages which posses their truth predicates. https://doi.org/10.13140/rg.2.1.1439.9443

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