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view wisdom/free @ 9339:5a16c94dca27
<tswett> le//rn Since when does le//rn exist?
author | HackBot |
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date | Wed, 19 Oct 2016 02:05:40 +0000 |
parents | ca4257b9b1e7 |
children |
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A free structure is one that has no nontrivial identities, except algebraist phrase that in a much fancier way with morphisms.