Translate the following inference to logic notation: For all x, if x_6 reads a book, then x_6 is playing a game. For all x, if x_6 plays a game, then x_6 is a scientist. For all x, x_6 is sad. For all x, if x_6 were a scientist, then x_6 is not sad. Therefore for all x, x_6 will not read a book.
forall x: P(x) -> Q(x). forall x: Q(x) -> R(x). forall x: S(x). forall x: R(x) -> ~S(x). Therefore forall x: ~P(x).