Concatenation as a basis for arithmetic
- 1 December 1946
- journal article
- Published by Cambridge University Press (CUP) in The Journal of Symbolic Logic
- Vol. 11 (4) , 105-114
- https://doi.org/10.2307/2268308
Abstract
General syntax, the formal part of the general theory of signs, has as its basic operation the operation of concatenation, expressed by the connective ‘⌢’ and understood as follows : where x and y are any expressions, x⌢y is the expression formed by writing the expression x immediately followed by the expression y. E.g., where ‘alpha’ and ‘beta’ are understood as names of the respective signs ‘α’ and ‘β’, the syntactical expression ‘alpha⌢beta’ is a name of the expression ‘αβ’.Tarski and Hermes have presented axioms for concatenation, and definitions of derivative syntactical concepts. Hermes has also related concatenation theory to the arithmetic of natural numbers, constructing a model of the latter within the former. Conversely, Gödel's proof of the impossibility of a complete consistent systematization of arithmetic depended on constructing a model of concatenation theory within arithmetic.Keywords
This publication has 3 references indexed in Scilit:
- Semiotik. Eine Theorie der Zeichengestalten als Grundlage fur Untersuchungen von Formalisierten Sprachen.The Journal of Philosophy, 1939
- Definition of substitutionBulletin of the American Mathematical Society, 1936
- Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme IMonatshefte für Mathematik, 1931