Re: [Haskell-cafe] Questions about the Functor class and it's use in "Data types à la carte"

I wrote:

...

(.!) f g x = f `seq` g `seq` f (g x)

Roberto Zunino wrote:

id .! undefined == \x -> undefined /= undefined

Probably you meant

(.!) f g = f `seq` g `seq` (f . g)

Yes, thank you. -Yitz