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All cats are mammals. All mammals are animals. Therefore:
AAll cats are animals
BSome animals are not cats
CNo cats are animals
DAll animals are cats
Answer & Solution
Correct answer: A. All cats are animals
1. Transitivity: if A ⊆ B and B ⊆ C, then A ⊆ C.
2. All cats are animals follows directly.
3. Hence all cats are animals.
_Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Syllogism_