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NFSI IS NOT INCLUDED IN NF3

Published online by Cambridge University Press:  14 September 2016

MARCEL CRABBÉ
MARCEL CRABBÉ*
Affiliation:
CENTRE DE LOGIQUE UNIVERSITÉ CATHOLIQUE DE LOUVAIN B1368 LOUVAIN-LA-NEUVE BELGIUME-mail: marcel.crabbe@uclouvain.be
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Abstract

We prove that the system of strong impredicative NF is not a part of a consistent 3-stratified extension of NF3.

Keywords

New-FoundationsNFimpredicative
Type
Articles
Information
The Journal of Symbolic Logic , Volume 81 , Issue 3 , September 2016 , pp. 948 - 950
Copyright
Copyright © The Association for Symbolic Logic 2016 

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References

REFERENCES

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