Mathematical Re...

The inverse proposition of $$(p \wedge \sim q)\Rightarrow r$$, is

The contrapositive of $$(p \vee q)\Rightarrow r$$ is

Which of the following is the inverse of the proposition "If a number is prime, then it is odd"?

If $$x = 5$$ and $$ y = 2$$ then $$x - 2y = 9$$. The contrapositive of this statement is

If $$x = 5$$ and $$y = -2$$, then $$x-2y = 9$$. The contrapositive of this statement is/are

If $$p\rightarrow  (q \vee r)$$ is false, then the truth values of $$p,q,r$$ are respectively

Choose the conclusion of given statements:

Consider the statements 
(i)Two plus three is five.
(ii) Every square is a rectangle.
(iii) Sun rises in the east.
(iv) The earth is not a star. 
Which of the above statements have truth value (T) ?

The contrapositive of $$p\rightarrow (\sim q\rightarrow \sim r)$$ is equivalent to

Which one of the following statements is not a false statement?