
There is No Standard Model of ZFC and ZFC2
In this Chapter we obtain a contradictions in formal set theories under assumption that these theories have omega-models or nonstandard model with standard part. An possible generalization of Lob’s theorem is considered. Main results are: (i) ¬Con(ZF C+∃MZFCst), (ii) ¬Con(N F+∃MNFst), (iii) ¬Con(ZF C2), (iv) let k be an inaccessible cardinal then ¬Con(ZF C+∃κ), (v)…
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