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rolotony rolotony
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2 weeks ago
Consider "Since all surgeons are medical doctors, all non-medical doctors are non-surgeons." This inference, drawn by contraposition, is

▸ valid

▸ not valid

▸ valid by limitation
Textbook 

How to Think Logically


Edition: 2nd
Authors:
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wukong81wukong81
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2 weeks ago
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Thank you, thank you, thank you!
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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2 hours ago
Brilliant
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