Translate the following inference to logic notation: For all x, x_8 is an electrician. For all x, x_8 will write a letter and x_8 will play squash. For all x, x_8 will take a plane. Therefore for all x, x_8 will write a letter and x_8 will take a plane.
forall x: P(x). forall x: Q(x) and R(x). forall x: S(x). Therefore forall x: Q(x) and S(x).