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Qn #2115
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All birds lay eggs. Some animals lay eggs. Therefore, some animals are birds.
A.
The conclusion is valid.
B.
The conclusion is invalid because not all animals that lay eggs are birds.
C.
The conclusion is invalid because the premises do not establish a necessary connection between animals and birds.
D.
The conclusion is valid only if "some" means "all".
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❓ Question: All birds lay eggs. Some animals lay eggs. Therefo... | TANCET Group Studies | Tancet Group Studies