p-(q rarr gamma)

The statement p rarr(q rarr p) is equivalent to

The converse of p rarr (q rarr r) is

The statement which is not a tautology is (p harr q)[(p rarr q)^^(q rarr q)] b.(p rarr q)vv(sim p rarr q) c.(p^^q)rarr(p vv q)d(p^^q)vv[(p vv q)rarr-q]

The statement (p rarr q)vv(q rarr p) is