Questions on Logic: Proofs answered by real tutors!

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Tutors Answer Your Questions about Proofs (FREE)

Question 232431: I need help solving this logics problem, Pleas help!!
If Osami is in either Afganistan or Pakistan, then he is in hiding. But if Osama is alive, then he will soon release another video tape and the tape will include a criticism of America. So, if Osama is in Afganistan then his is in hiding, and if he is alive the he will soon release another video tape. (Use the following letters: A,P,H,L,R,C)
Click here to see answer by solver91311(5072) About Me 
Question 237510: I need help completing this proof for my deductive logic class?
1. (O . P)--> Q
2. R --> (Q -->S)
3. O . R (Conclusion) P --> S
Click here to see answer by jim_thompson5910(13787) About Me 
Question 237506: I need help completing proofs for my deductive logic class.
Can you help me with this one?
1. M v ~(K v ~L)
2. ~M . (N . O) (Conclusion) ~K . L
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