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THE ITERATIVE CONCEPTION OF SET

Published online by Cambridge University Press:  01 June 2008

THOMAS FORSTER*
Affiliation:
Centre for Mathematical Sciences
*
*CAMBRIDGE UNIVERSITY, CENTRE FOR MATHEMATICAL SCIENCES, CAMBRIDGE CB3 OWB, UK. E-mail: [email protected]

Abstract

The two expressions ‘The cumulative hierarchy’ and ‘The iterative conception of sets’ are usually taken to be synonymous. However, the second is more general than the first, in that there are recursive procedures that generate some ill-founded sets in addition to well-founded sets. The interesting question is whether or not the arguments in favour of the more restrictive version – the cumulative hierarchy – were all along arguments for the more general version.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 2008

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References

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