Bicat is not triequivalent to Gray
Stephen Lack
math.CTarXiv:math/0612299
Abstract
Bicat is the tricategory of bicategories, homomorphisms, pseudonatural transformations, and modifications. Gray is the subtricategory of 2-categories, 2-functors, pseudonatural transformations, and modifications. We show that these two tricategories are not triequivalent.
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