Yes, this is one of the features we would like to have. If you write down the explicit instantiation of a function, we just take it, no questions asked (well, the terms should still be type correct).

But writing out *every* single impredicative instantiation is really tiresome, hence we are looking for "simple" ways to flow this information around and alleavite a bit the burden.

El vie., 28 jun. 2019 a las 15:43, Ryan Scott (<ryan.gl.scott@gmail.com>) escribió:

Would this permit explicit impredicativity as described in [1]? Simon mentions in [1] that explicit impredicativity is easier to implement than guarded impredicativity, although it's not clear to me if the latter would imply the former.

Ryan S.
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[1] https://gitlab.haskell.org/ghc/ghc/issues/14859
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