Translate the following inference to logic notation: For all x, x_7 will take a plane or x_7 will not listen to a song. For all x, if x_7 takes a plane, then x_7 is listening to a song. For all x, if x_7 reads a book, then x_7 is taking a plane. Therefore for all x, if x_7 reads a book, then x_7 is listening to a song.
forall x: P(x) or ~Q(x). forall x: P(x) -> Q(x). forall x: R(x) -> P(x). Therefore forall x: R(x) -> Q(x).