Exercise 1.3A.docx - Exercise 1.3A Multiple Choice 1 Lewis is a famous author only if he knows how to write But Lewis is not a famous author So Lewis

Exercise 1.3A.docx - Exercise 1.3A Multiple Choice 1 Lewis...

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Exercise 1.3A: Multiple Choice 1. Lewis is a famous author only if he knows how to write. But Lewis is not a famous author. So, Lewis does not know how to write. Your answer of ``DA: denying the antecedent'' is correct! 2. If Susan is a famous author, then she knows how to write. Moreover, Susan knows how to write. So, She is a famous author. Your answer of ``AC: affirming the consequent'' is correct! 3. Rilke is a dreamer if he is a poet. So, Rilke is a poet. Your answer of ``Unnamed Invalid Form'' is correct! 4. If Mubarak is from Egypt, then he is from Africa. So, If Mubarak is not from Egypt, then he is not from Africa. Your answer of ``Unnamed Invalid Form'' is correct! 5. Sam is wealthy if he has more than a billion dollars. But Sam does not have more than a billion dollars. So, Sam is not wealthy. Your answer of ``DA: denying the antecedent'' is correct! 6. There is life on Mars given that there
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