2.

Exercise 2: b, e (p. 92 of the textbook)

please

2. Use the partial truth table method to test the following for validity. *a. ~ (rvq) ) ~ (pvr) b. (p' q) ) ~r ~ (p v Q) 5 - (9 . r ) (q . r) ) ~p (pv - q) ) - (r . P) ~(p v 4) 5 - (q vr) 1.. p) ( ~rv ~q) 1. ~ ( p . ( ~q . 1 ) *c. (p .q).~r +d. (pv q) > ~ (r 's) ( pv q ) ) ~r * ~ [ ( d . d ) ~ ~ (p >q)> ~ (92 p) -(pv q )vs 1.. ~ (p Jr) 1.. (s vp) ) - (q . r) c. (-pv ~ q) = ~ (r's) #f. (p = r) = (s = ~ q) q = ~(pvr) ~ ( ( p v q ) v ~ r ) ( ~p. ~ r) ) ( ~q v ~ s ) (( ~ p ) q) v ( ~ r > s)) = -q 1.. ~p= ~ (q 's) ((r ) s) . ~ (p v q) ) ) - (q vs) ~ (r > ) > (~ (p v q) > ( r. ~s)) 1.. ~ (pv q) ) ( )s)