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

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Textbook 
How to Think Logically

How to Think Logically


Edition: 2nd
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birdnuggetbirdnugget
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bundlecrap Author
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A year ago
Thanks
kriggs62
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Smart ... Thanks!
mambah4
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Helped a lot
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