Which of the following statement is acontradiction `(p ^^ q)^^(~(p vv q))`

Which of the following statement is acontradiction (p^^q)^^(sim(p vv q))

Which of the following statement is a contradiction: (1)(sim p vv sim q)vv(p vv sim q),(2)(p rarr q)vv(p^^sim q),(3)(sim p^^q)^^(sim q)

(p ^^ ~q) ^^ (~p vv q) is

(p ^^ ~q) ^^ (~p vv q) is

(p ^^ ~q) ^^ (~p vv q) is

(p ^^ ~ q) ^^(~ p vv q) is

~[(p ^^ q)to(~p vv q)] is a

Which of the following is correct- (sim p vv sim q)=(p^^q)

Write the duals of the following statements : (i) [ ~ ( p vv q)] ^^ [ p vv { ~ q ^^ ~ s )}] ~ p vv [ ( ~q) vv ( p vv ~ q) vv ~r ]

Write the duals of the following statements : (i) [ ~ ( p vv q)] ^^ [ p vv { ~ q ^^ ~ s )}] (ii) ~ p vv [ ( ~q) vv ( p vv ~ q) vv ~r ]