Question 1120041
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Let F represent the statement "Fido is our dog's name," and let R represent the statement "Rex is our dog's name."


The three statements to be evaluated are:  (a) F -> ~R, (b) ~F & ~R, and (c) ~F v R.


Use a truth table.  Equivalent statements will have identical truth tables:
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   F   ~F   R   ~R   F -> ~R   ~F & ~R   ~F v R

   T    F   T    F      F         F         T
   T    F   F    T      T         F         F
   F    T   T    F      T         F         T
   F    T   F    T      T         T         T
</pre>

None of the three statements to be evaluated have identical truth tables, therefore none of the three statements are equivalent.
								
								
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  
								
{{n}\choose{r}}

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