[Haskell-cafe] Re: Sending bottom to his room

[Cristian Baboi]

Sorry, I think a and b are from the value domain.


On Sat, 29 Dec 2007 13:14:09 +0200, Cristian Baboi  
<cristian.baboi at gmail.com> wrote:

> In The Implementation of Functional Programming Languages by S.P. Jones,  
> section 2.5.3, page 32 it is written:
>
>
> Eval [[*]] a b = a x b
> Eval [[*]] _|_ b = _|_
> Eval [[*]] a _|_ = _|_
>
> but in section 2.5.2 it is said that _|_ is an element of the value  
> domain.
> What business does it have on the left side of the '=' ?
>
> Can you help me send him to his room ?