2 Apr
2008
2 Apr
'08
7:51 a.m.
Hans Aberg writes: ...
But one should also be able to write (f+g)(x). - This does not work in Haskell, because Num requires an instance of Eq and Show.
So, declare them, even if they are vacuous. I did it several times, I am still alive, so no need to say "this does not work". Jerzy Karczmarczuk