Mathematics – Category Theory
Scientific paper
2007-10-27
Mathematics
Category Theory
6 pages; more detailed explanations
Scientific paper
We show, using Eckmann-Hilton argument, that the category of 3-computads is
not cartesian closed. As a corollary we get that neither the category of all
computads nor the category of n-computads, for n>2, do form locally cartesian
closed categories, and hence elementary toposes.
Makkai Mihaly
Zawadowski Marek
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