Translate the following inference to logic notation: For all x, x_7 is a writer if and only if x_7 is bored. For all x, x_7 is not a writer. For all x, x_7 is bored or x_7 is a sailor. For all x, x_7 will read a book. Therefore for all x, x_7 will read a book and x_7 is a sailor.
forall x: P(x) <-> Q(x). forall x: ~P(x). forall x: Q(x) or R(x). forall x: S(x). Therefore forall x: S(x) and R(x).