Translate the following inference to logic notation: For all x, if x_6 were an artist, then x_6 is a carpenter. For all x, x_6 is an artist. For all x, x_6 is sad or x_6 is not a carpenter. Therefore for all x, x_6 is sad.
forall x: P(x) -> Q(x). forall x: P(x). forall x: R(x) or ~Q(x). Therefore forall x: R(x).