Tag: model theory
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Introducing Modley
I have a brand-new favicon at this blog. It is actually a very simple, albeit special, smiley (or “emoji,” of you prefer): Modley is, as most of you have already noticed, the “consequence” or “satisfaction” symbol used in model theory and in Logic in general, rotated 90° counterclockwise. You may typeset the actual symbol $\models$…
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Teoría de conjuntos ingenua
Abstract. I’ll discuss one view of the naïve-axiomatic dichotomy in Set Theory. My claim is that one leaves the “naïve” world when first order logic (or put differently, the possibility of different models of ZFC) becomes explicit. En muchas ocasiones se utiliza el término teoría de conjuntos ingenua; incluso el libro de Halmos se llama…