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Countable vector spaces with recursive operations Part I1

Published online by Cambridge University Press:  12 March 2014

J. C. E. Dekker*
Affiliation:
RutgersThe State University and Institute for Advanced Study

Extract

We use the word “number” for “nonnegative integer” and “set” for collection of numbers. The set of all numbers is denoted by ε and the empty set by ο. We write ⊂ for the relation of inclusion and ⊆ for that of proper inclusion. If ƒ is a function from a subset of ε into ε, its domain and range are denoted by δƒ and ρƒ respectively. For any collection Γ of entities, card Γ or card (Γ) stands for the cardinality of Γ. The cardinality of the continuum is denoted by c.

Information

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 1969

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