7) Using DeMorgan's Laws do not use Truth Table) show that PQ and - (-PV-Q) are logically equivalent. 8) Write the following as English sentences. Say if the statements are true or false. i. VX ER,x2 > 0 ii. VnEZ, 3mez, m=n+5 . 9) Translate following into symbolic logic. i. For every positive number 8, there is a positive number for which |x-a|