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Home Q & A Board Humanities Religion and Philosophy
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hardy7luver hardy7luver
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A year ago
Consider "Since all triangles are plane figures, all non-plane figures are non-triangles." 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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finley07finley07
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A year ago
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hardy7luver Author
wrote...

A year ago
Thanks
jasonbourne
wrote...

Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
einstein
wrote...

2 hours ago
Brilliant ツ
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