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    Mathematics
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    A Concise Introduction to Logic
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    Exam 4: Categorical Propositions
  5. Question
    No Unicorns Are Goats
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No Unicorns Are Goats

Question 214

Question 214

Multiple Choice

No unicorns are goats. Therefore, it is false that all unicorns are goats.


A) Invalid; illicit contraposition.
B) Invalid; illicit contrary.
C) Valid; no fallacy.
D) Invalid; illicit subalternation.
E) Invalid; existential fallacy.

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