[plt-scheme] What are "and" and "or" ?

On 15 Feb, 2008, at 21:32, Marco Morazan wrote:

> On Fri, Feb 15, 2008 at 4:21 PM, Matthias Felleisen
> <matthias at ccs.neu.edu> wrote:
>>
>> Your students are correct. BUT nothing has been lost:
>>
>> (define (and& x y) (and x y))
>>
>> (define (or& x y) (or x y))
>>
>
> But 'em apples are not as sweet as the utopian ones that are primitive
> apples. ;-)
>


You can always use the lazy language. If you use it, and and or (and  
some others) are pure functions. But then you may have some more  
problems ;-)


F