Translate the following inference to logic notation: If Jessica writes a letter, then Joseph is a politician. For all x, x_12 will write a letter or x_12 will not play tennis. For all x, if x_12 writes a letter, then x_12 is playing tennis. Therefore if Jessica plays tennis, then Joseph is a politician.
P(a) -> p. forall x: P(x) or ~Q(x). forall x: P(x) -> Q(x). Therefore Q(a) -> p.