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Free theorem for fmap

Published on 24 April 2021 at 19:16

Finding a "free theorem"

Published on 17 November 2018 at 13:58

In Idris, can I prove free theorems, e.g. the only (total) function of type `forall t. t -> t` is `id`?

Published on 27 May 2017 at 06:11

Law for type [[a]] -> ([a], [a])

Published on 15 December 2019 at 20:51

Paramcoq: Free theorems in Coq

Published on 11 March 2019 at 22:46

For different possible Monad instances of a type, is the implied Functor instance always the same?

Published on 13 February 2014 at 17:28

Parametricity-exploiting proofs in Agda

Published on 21 December 2015 at 03:20

Is the functor distribution law for the `Alt` typeclass trivial?

Published on 24 February 2020 at 17:50