Subsection 1.2.1 (0006): $\webleft (-2\webright )$-Categories

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Table of Contents
Part 1: Sets
Chapter 1: Sets
Section 1.2: The Enrichment of Sets in Classical Truth Values
Subsection 1.2.1: $\webleft (-2\webright )$-Categories (cite)

1.2.1 $\webleft (-2\webright )$-Categories

Definition 1.2.1.1.1 ▶ $\webleft (-2\webright )$-Categories

A $\webleft (-2\webright )$-category is the “necessarily true” truth value.^[1]^[2]^[3]

Footnotes

[1] Thus, there is only one $\webleft (-2\webright )$-category.

[2] A $\webleft (-n\webright )$-category for $n=3,4,\ldots $ is also the “necessarily true” truth value, coinciding with a $\webleft (-2\webright )$-category.

[3] For motivation, see p. 13 of [Baez–Shulman, Lectures on $n$-Categories and Cohomology].

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