What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_16, x_16 will play tennis if and only if x_16 will listen to a song. Richard is not making tea. If Linda plays tennis, then Richard is making tea.
Linda is not playing tennis. For all x_16, if x_16 plays tennis, then x_16 is listening to a song. For all x_16, if x_16 listens to a song, then x_16 is playing tennis.