arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.11535math.LO
收藏

自指理论

Self-referential theories

the Ohio State University(俄亥俄州立大学)

Samuel Allen Alexander

AI总结:

本研究针对扩展算术语言下的自指理论族结构,证明含自身真理性模式、特定Turing索引模式及弱公理的理论不真,并给出恰好规避该禁忌模式的真自指理论族实例。

摘要:

我们研究算术语言下理论族的结构,该语言经扩展后允许这些理论族相互指涉且能自指。若一个理论包含表述自身真理性、表述自身特定Turing索引的模式,且包含一些其他弱公理,则该理论不真。我们展示了若干真自指理论族,它们恰好规避了这种被禁止的模式。

英文摘要:

We study the structure of families of theories in the language of arithmetic extended to allow these families to refer to one another and to themselves. If a theory contains schemata expressing its own truth and expressing a specific Turing index for itself, and contains some other mild axioms, then that theory is untrue. We exhibit some families of true self-referential theories that barely avoid this forbidden pattern.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑