Translate the following inference to logic notation: For all x, x_13 is a doctor. For all x, x_13 is an office clerk. For all x, if x_13 were an office clerk, then x_13 is a carpenter. Therefore Elisabeth is a doctor or it is late.
forall x: P(x). forall x: Q(x). forall x: Q(x) -> R(x). Therefore P(a) or p.