PHL-ash
Card Set Information
Author:
Anonymous
ID:
10698
Filename:
PHL-ash
Updated:
2010-03-15 19:56:39
Tags:
PHL
Folders:
Description:
PHL exam 3
Show Answers:
~A
opposite
A (and) B
conjunction
both have to be T to be T
A v B
disjunction
both have to be F to be F
A (side ways u) B
if A then B
conditional
TF=F
A (three lines) B
A if and only if B
biconditional
have to be the same to be T
Vaild because
every valuation with true premises has a true conclusion
invalid because
every valuation with true premises does not have true conclusions