goals

Refer to the network given above.

If we wanted to prove the following statement using proof by contradiction, what assumption would we start our proof with?

Prove that $$2^n>n$$ for all positive integers $$n$$

Write the negation of the of the following statement and check whether it is true is false.

Australia is a continent

Australia is a continent

The contrapositive of statement "Something is cold implies that it has low temperature" is