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For questions involving one or more categorical dimensions, or involving homotopy coherent categorical structures.

1 vote

Higher dimensional pasting diagram of cubes

There are some graphic calculations in dimension 3 and 4 in my paper Combinatorics of branchings in higher dimensional automata (p348-358 in dimension 3 and p361-362 with a 4-cube).
Philippe Gaucher's user avatar
1 vote

On the foundations for large categories

This should be a comment, not an answer but it is too long ! This issue is not open. On the contrary, it is well-known. Unlike what is commonly believed, ZFC alone is not sufficient to develop categor …
Philippe Gaucher's user avatar