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8 votes
2 answers
923 views

What category are Tagless Final Algebras final In?

The Haskell and Scala community have been very enamored recently with what they call tagless final 'pattern' of programming. These are referenced as dual to initial free algebras, so I was wondering ...
Henry Story's user avatar
6 votes
2 answers
673 views

Proof of a unique homomorphism from an initial object

What is the proof that there is only one homomorphism from an initial object to another object?
Jason Reich's user avatar