Mr. Nance,
As I am reviewing Exercise 30, I am confused if my answer works , since its different from the original answer. I put:
No logic is a tangible study
No chemistry is logic
∴ All chemistry is a tangible study
As opposed to the answer key:
All non-logic sciences are tangible studies
All chemistry is a non-logic science
∴ All chemistry is a tangible study
Which one is right? Continue reading Exercise 30, problem 4: Is my answer correct?