Translate the following inference to logic notation: For all x, if x_6 plays squash, then x_6 is an astronaut. For all x, if x_6 were a mechanic, then x_6 is playing squash. If it snows, then Jessica is a mechanic. Therefore if it snows, then Jessica is an astronaut.
forall x: P(x) -> Q(x). forall x: R(x) -> P(x). p -> R(a). Therefore p -> Q(a).