Posted by **Maggie** on Friday, October 22, 2010 at 12:53am.

Construct natural deduction proofs for each of the following.

118.2 p&(q&r).'. q

118.4 .'. ¬(p&(q&¬p))

118.10 q .'. ¬(¬p&¬q)

122.3* p " q, ¬p " r .'.¬q " r

122.7* p " q, ¬(p " r) .'. ¬(q " r)

122.10 p " q, ¬q .'. ¬p

- Philosophy -
**Writeacher**, Friday, October 22, 2010 at 6:55am
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