1. For each statement given below, write down its logical form. Next, determine whether the statement is either true or false. Finally, nd a counterexample for each false statement. a) Feral] integers a, b and c, if all; and ale, then a|(b+c). b) For all integers a. b and c, if n|(b+c), then all: and a|c. c) For all integers a and b, if all; and bla , then a = b. d) For all positive integers a and b, if a|b and b|a , then a = b