[sage-devel] Re: symbolic logic code

2008-05-14 Thread William Stein
> Dear Chris and William: > > Chris has writen a new version of the symbolic logic code for Sage > (seee #545), implementing all my previous suggestions. > > I didn't have much time to review this patch, but it seems that AlexGhitza has > been working on this. I think that it is important than thi

[sage-devel] Re: symbolic logic code

2008-03-10 Thread Michael Brickenstein
Hi! You might want to look for the zeroesIn method to the new section "Reinterpretation of Boolean sets as subsets of the vector space" in the PolyBoRi tutorial. http://polybori.sourceforge.net/doc/tutorial/index.html Best regards, Michael On 7 Mrz., 10:14, Chris Gorecki <[EMAIL PROTECTED]> wrote

[sage-devel] Re: symbolic logic code

2008-03-07 Thread Chris Gorecki
Wow, I had no idea that was even a possibility:) Thanks for pointing that out to me. -Chris Gorecki --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more op

[sage-devel] Re: symbolic logic code

2008-03-05 Thread Michael Brickenstein
Hi! You could wrap that functionality around PolyBoRi Using the mapping: False -> 1 True->0 or -> * not x -> 1+x You can map logical expressions to Boolean polynomials. Having such a polynomial f, you calculates its zeroes, which gives the DNF. Example: In [1]:f=(x(1)+x(2)) In [2]:(x(1)*x(2)).