Re: the logical argument behind equation solving??

From: futurist (adamgolding_at_adamgolding.com)
Date: 02/27/05


Date: 26 Feb 2005 16:19:32 -0800

ahh, ok, i've heard these sets referred to as 'truth sets'--but where
does this S operator come from (historically, and where is it used
today) and why do you change cases on P and Q?