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Home Q & A Board Humanities Religion and Philosophy
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rolotony rolotony
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A year 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

How to Think Logically


Edition: 2nd
Authors:
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wukong81wukong81
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A year ago
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rolotony Author
wrote...

A year ago
Brilliant ツ
njn;l
wrote...

Yesterday
You make an excellent tutor!
mcraver1
wrote...

2 hours ago
Good timing, thanks!
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