Convert the following English sentences into propositional logic and the following propositions into English. State whether or not each statement is true with brief justification. (a) There is a real number which is not rational
(b) All integers are natural numbers or are negative, but not both.
(c) If a natural number is divisible by 6, it is divisible by 2 or it is divisible by 3
(d) (VxER) (x E C)