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arXiv · 1711.07333

An extendible model with a rigid elementary extension

Paul B. Larson·Saharon Shelah
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Abstract

A countable structure is said to be extendible if it has the same Scott sentence as some uncountable structure. Rigid structures are not extendible. We give an example of an extendible model with a rigid elementary extension.

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Paul B. Larson, Saharon Shelah. 2017-11-20. An extendible model with a rigid elementary extension. https://arxiv.org/abs/1711.07333

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