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OpenStudy (anonymous):
not (p and q); (not p) and (not q)
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OpenStudy (anonymous):
Are the two statements logically equivalent?
Directrix (directrix):
No. Check out DeMorgan's Law: http://regentsprep.org/Regents/math/geometry/GP1/negatecompound.htm
OpenStudy (anonymous):
what about: (p or q) or r; p or (q or r)
Directrix (directrix):
I'm not sure about those. You may need to make truth tables to decide.
OpenStudy (anonymous):
it is true ... Thanks for your help
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