On the Toda bracket understood via homotopy-coherent pasting diagrams in a pointed homotopy 2-category:
On the fundamental 2-groupoid of Hausdorff topological spaces as a strict 2-groupoid (Grpd-enriched category):
and as a weak 2-groupoid:
Discussion of the canonical model structure on categories of internal categories:
Last revised on January 19, 2023 at 11:40:44. See the history of this page for a list of all contributions to it.