Statements: All books are notebooks.
Some notebooks are novels.
All novels are dairies.
All notebooks are letters.
Conclusions:
I. Some novels are books.
II. Some dairies are not notebooks.
III. No book is a novel.
IV. Some letter are books.
All books are notebooks (A) + Some notebooks are novels(I) ⇒ No conclusion. Hence, conclusion I and III will not follow. However, Conclusion I and conclusion III make a complementary pair, hence, either conclusion I or III follows. Some notebooks are novels(I) + All novels are dairies(A) ⇒ Somenotebooks aredairies (I). Hence, conclusion II will not follow. All books are notebooks (A) + All notebooks are letters.(A) All books are letters (A) ⇒ conversion ⇒ Some letter are books.(I). Hence, conclusion IV will follow.
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