Non-concrete categories constructed from concrete categories
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Can all non-concrete categories be constructed by taking a concrete category and identifying some of its morphisms?
Thanks
category-theory
asked 2012-12-04
user id:51703
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Or rather: Given any category, can we find a suitable concrete category such that ... Personally, I doubt that. – 2012-12-04
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All small categories are concrete. Categories that fail to be locally small cannot possibly be quotients of concrete categories, but it is possible to obtain non-locally-small categories by _localising_ concrete categories. – 2012-12-04