SOLUTION: I need help finishing this proof. 1. (A v B) v C 2. ~B & ~ E 3. (A v C) > (E & W) / ~ (~E v ~ W)

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Question 205447: I need help finishing this proof.
1. (A v B) v C
2. ~B & ~ E
3. (A v C) > (E & W) / ~ (~E v ~ W)

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

1.  (A v B) v C
2.  ~B & ~ E
3.  (A v C) -> (E & W)    / ~ (~E v ~ W)
---------------------------------------
4.  ~B                                  2     Simplification
5.  (B v A) v C                         1     Commutation
6.  B v (A v C)                         5     Association
7.  A v C                             6,4     Disjunctive Syllogism
8.  E & W                             3,7     Modus Ponens
9.  ~~E & ~~W                           8     Double Negation
10. ~(~E v ~W)                          9     De Morgan's Law