Monomorphisms as limits
Sometimes it is useful to think to monomorphisms as limits of a category. Let be a monomorhism, i.e., for every pair of arrows , if , then . This is … Continue reading
April 4, 2011 · Leave a comment
Order (and small disorder)
In most textbooks, one finds that a category represents a preorder exactly when there is at most one arrow between any pair of objects. But, surprisingly, the same is told … Continue reading
March 29, 2011 · Leave a comment
Marco Benini 
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