Refuting ehrenfeucht conjecture on rigid models

Saharon Shelah

doi:10.1007/BF02757005

Refuting ehrenfeucht conjecture on rigid models

Saharon Shelah^*

^*Corresponding author for this work

Einstein Institute of Mathematics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We prove that the class of cardinalities in which a first-order sentence has a rigid model can be very complicated, and we essentially characterize the possible classes.

Original language	English
Pages (from-to)	273-286
Number of pages	14
Journal	Israel Journal of Mathematics
Volume	25
Issue number	3-4
DOIs	https://doi.org/10.1007/BF02757005
State	Published - Sep 1976

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Refuting ehrenfeucht conjecture on rigid models

Abstract

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