Wednesday

April 23, 2014

April 23, 2014

Posted by **Pat** on Monday, September 17, 2012 at 6:00pm.

Let p be: it is wrong to smoke in public

Let q be: secondary cigarette smoke is a health threat

Let r be: the American Lung Association says that secondary cigarette smoke is a health threat

Can you answer these questions?

A. What would ~q be in words?

B. Change the first statement (It is wrong to smoke in public if secondary cigarette smoke is a health threat.) to symbols.

C. What is the symbolic representation of the second statement (If secondary cigarette smoke were not a health threat, the American lung Association would not say that it is)?

D. What is a simpler equivalent symbolic statement for the second statement?

E. What is the symbolic representation of the third statement (The American lung Association says that secondary cigarette smoke is a health threat)?

F. What is the symbolic representation of the conclusion(Therefore, it is wrong to smoke in public)?

G. Is this argument Valid or Invalid?

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