Re: NULLs: theoretical problems?
Date: Sat, 25 Aug 2007 10:29:48 -0000
On 25 aug, 02:13, "V.J. Kumar" <vjkm..._at_gmail.com> wrote:
> Jan Hidders <hidd..._at_gmail.com> wrote innews:1187998409.227306.271460_at_e9g2000prf.googlegroups.com:
> > On 24 aug, 16:35, "V.J. Kumar" <vjkm..._at_gmail.com> wrote:
> >> You may be right, but then why the formula was not written with an
> >> explicit 'and' ?
> > Because it does not satisify all the logical laws of an AND, so to
> > avoid confusion another notation is used.
> What logical laws of AND are violated when we interpret
> 'def(x):f(x)' as 'def(x) and f(x)' ?
Commutativity and associativity.
- Jan Hidders