Question 1130715
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1.   (H or M) or L
2.   L -> H
3.   H -> (M -> H)
4.   ~(M -> H)          |  M

5.   ~H                 3,4 Modus Tollens
6.   ~L                 5,2 Modus Tollens
7.   (H or M)           6,1 Disjunctive Syllogism
8.   Therefore M        7,5 Disjunctive Syllogism		

</pre>							
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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