Write in symbolic form. Use the rules of inferences to prove if the argument is valid or invalid. If Dominic goes to the racetrack, then Helen will get mad. If Ralph plays cards all night, then Carmela will get mad. If either Helen or Carmela gets mad, then Veronica (their attorney) will be notified. Veronica has not heard from either of these two clients. Consequently, Dominic didn't make it to the racetrack and Ralph didn't play cards all night.