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vikingblood vikingblood
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3 years 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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vikingblood Author
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3 years ago
Thank you, thank you, thank you!
carston
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Brilliant ツ
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Just got PERFECT on my quiz
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