> Hi all, after a lot of time, a new version of Logic Expressions is now
> available on SqueakMap.

How would you write the N-Queens in your Prolog-like language ?
http://www.sics.se/sicstus/docs/3.12.5/html/sicstus/N-Queens.html

Cheers,
Alexandre


>
>
>> From the package description:
>
> This is a model of first order logic expressions, allowing you to  
> manipulate
> them as objects instead of just strings.
>
> Prerequisites:
>     -Refactoring Browser
>     -SmaCC Runtime Package
>     -SmaCC Development Package
>
> Inspect the following lines to get the expression corresponding
> to "(p => q) = (not p or q)":
>      | p q |
>      p := LVariable named: 'p'.
>      q := LVariable named: 'q'.
>      p => q equiv: (p not | q).
>
> Now, the same formula could be created using:
>      LExpression fromString: '{p=>q = not p or q}'
>
> More complex formulas can also be created and evaluated, for  
> example try:
>      | exp |
>      exp := LExpression fromString: '{V(x)[x even]}'.
>      exp valueDomains: {'x' -> #(2 4 6 8 10 12 )}.
>
> See more examples in the Logic-Tests category.
>
> I hope you enjoy it!
> Dany
>
>
>
>
>

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.cs.tcd.ie/Alexandre.Bergel
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.