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Home Q & A Board Humanities Religion and Philosophy
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vikingblood vikingblood
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A year ago
Consider "Since no tuna fish is a shark, no non-shark is a non-tuna fish." This inference, drawn by contraposition, is

▸ valid

▸ not valid

▸ valid by limitation
Textbook 
How to Think Logically

How to Think Logically


Edition: 2nd
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chanelfargesenchanelfargesen
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A year ago
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vikingblood Author
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A year ago
Thanks
hmonier
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
aznzergs
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2 hours ago
Correct Slight Smile TY
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