n-category number

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In mathematics, the n-category number of a mathematician is a humorous construct invented by Dan Freed^[1], intended to measure the capacity of that mathematician to stomach the use of higher categories. It is defined as the largest number n such that he or she can think about n-categories for a half hour without getting a splitting headache.

[edit] See also

• n-category
• Erdős number
• 2-category
• Weak n-category

[edit] References

• Tom Leinster (2004). Higher Operads, Higher Categories. Cambridge University Press. 
• Eugenia Cheng, Aaron Lauda (2004). Higher-Dimensional Categories: an illustrated guide book.