Last Update: 3 September 2010
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FORGET OR IGNORE WHATEVER YOU THINK
YOU KNOW ABOUT PROPOSITIONAL LOGIC
& LEARN **OUR** LOGIC AND RULES
|p, q, etc.||(any "simple" grammatical
|Today is Monday.
p describes the world correctly
|¬p||It's not the case that p.
|Today isn't Monday.
|Use truth tables for the semantics of molecular
i.e., tval(¬p)=F iff tval(p)=T
|conjunction||(p ∧ q)||p and q
p but q
p although q
|Today is Monday and 2+2=4.
Today is Monday but there's no school anyway.
(more to come …)