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nLab > Latest Changes: classical set

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  1. starting a page for sets whose equality and negation behave as they do in classical mathematics, hence the name

    Anonymouse

    v1, current

  2. Moved “Application” section from the decidable equality article to this article since the statements made in the section are only true if and only if the sets with decidable equality additionally have decidable tight apartness.

    Otherwise, stuff like Heyting fields are still important in basic algebra, because one can have fields with decidable equality along with its tight apartness that does not coincide with the negation of equality, such as the Dedekind real numbers with analytic WLPO.

    Anonymouse

    diff, v7, current

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