Statements: a. Some years are decades. b. All centuries are decades. Conclusions: I. Some centuries are years. II. Some decades are years. III. No century is a year.

Question

Accepted Answer

First Premise is Particular Affirmative (I-type).
Second Premise is Universal Affirmative (A-type).
All centuries are decades. ↔ Some decades are years.
A + I ⇒ No Conclusion
Conclusion II is Converse of the first Premise.…

Statements: a. Some years are decades. b. All centuries are decades. Conclusions: I. Some centuries are years. II. Some decades are years. III. No century is a year.

Discussion & Comments