%0 Journal Article
%T Middle-Four Maps and Net Categories
%A Brian Day
%J Mathematics
%D 2009
%I arXiv
%X We briefly relate the existence of a middle-four interchange map in a category with two monoidal structures, to the standard Cockett and Seely notion of a weakly distributive category.
%U http://arxiv.org/abs/0911.5200v1