Translate the following inference to logic notation: If Jennifer were a bartender, then Charles is taking a plane. For all x, x_11 will take a plane if and only if x_11 is a poet. For all x, if x_11 were a poet, then x_11 is taking a plane. Therefore if Jennifer were a bartender, then Charles is a poet.
p -> P(a). forall x: P(x) <-> Q(x). forall x: Q(x) -> P(x). Therefore p -> Q(a).