folds
data-category
folds | data-category | |
---|---|---|
- | 1 | |
18 | 54 | |
- | - | |
0.6 | 3.3 | |
about 1 year ago | 9 months ago | |
Haskell | Haskell | |
BSD 3-clause "New" or "Revised" License | BSD 3-clause "New" or "Revised" License |
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folds
We haven't tracked posts mentioning folds yet.
Tracking mentions began in Dec 2020.
data-category
-
Monthly Hask Anything (October 2021)
Even a fairly simple statement like "F preserves direct limits over N" is basically impossible to express like this. You can step further from Hask and work at the type level until the very end (which I believe is the approach taken by data-category), you can resign yourself to only expressing things that can be "defunctionalized" (an appropriate use of the term, I think, if not a correct one) down to Haskell functions, which gets you (Co)Yoneda, Lan, Ran, etc. in the general case and I think Traversable in this particular instance, or you can take some intermediate approach with constrained functions and/or explicit witnesses in your data types, but you can't make proper category theory "just work" the way it should.
What are some alternatives?
order-statistic-tree - Order statistic tree in Haskell
data-lens - Haskell 98 Lenses
comonad - Haskell 98 comonads
data-lens-fd - Lenses with Functional Dependencies
comonads-fd - comonad transformers based on functional-dependencies
cassava-conduit - Conduit interface for cassava [Haskell]
base64-bytestring - Fast base64 encoding and decoding for Haskell.
total-map - Finitely represented /total/ maps
fclabels - First class composable record labels for Haskell.
kan-extensions - Kan extensions, Kan lifts, the Yoneda lemma, and (co)monads generated by a functor
semigroupoids
proto-lens - API for protocol buffers using modern Haskell language and library patterns.