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gslwong gslwong
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A year ago
Consider this proof, (1.) ~IvE (2.) ~I ⊃ E (3.) ~E /∴ E (4.) I ⊃ E (5.) ~E ⊃ ~I (6.) ~E ⊃ E (7.) E What is the justification for line 4?

▸ 1 DS

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▸ 2, 3 MT
Textbook 
How to Think Logically

How to Think Logically


Edition: 2nd
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tranle311tranle311
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A year ago
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