Question 475710

(i) p ^ (~p v q ) v (~q v p )

http://imageshack.us/photo/my-images/29/capture7292011114545am.jpg/

 (ii) ~q if and only if (p ^ q)

(ii) ~q <=> (p ^ q)

http://imageshack.us/photo/my-images/844/capture7292011114921am.jpg/