Exercise 58 … (For-Credit of 2 Points) (*)
(1) Symbolize the following argument,
(2) Establish its validity by a proof, and
(3) “Evaluate” the argument as well.
1. All the beings that have wings can fly.
2. All birds have wings.
C. Therefore, all birds can fly.
Exercise 60 … (For-Credit of 3 Points) (*)
Symbolize & Prove the following argument:
1. All criminals are vicious.
2. Some humans are criminals.
C. Thus some humans are vicious.