Logic & Philosophy 1- Given that A and B are true and X and Y are false determine the truth value of the following:   ~A v B   ~A v X   X v ~A

Logic & Philosophy

1- Given that A and B are true and X and Y are false determine the truth value of the following:

• ~A v B

• ~A v X

• X v ~A

• (A & B) v ~Y

• (~~A & ~Y) & ~~X

• Symbolize the following inferences. Are they valid? Why or why not?

• • Doug is either a doctor or a chemist, but he definitely is a chemist; so he must not be a doctor
  • Computers can think and feel emotions. However, computers also either can’t think or don’t feel emotions. Therefore, Artificial Intelligence is impossible