SOLUTION: Determine if the argument is valid or invalid. Give a reason to justify answer.
If it is cold, then you need a coat.
You do not need a coat.
∴ It is not col
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Question 616188: Determine if the argument is valid or invalid. Give a reason to justify answer.
If it is cold, then you need a coat.
You do not need a coat.
∴ It is not cold.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Argument is valid. Contrapositive always has the same truth value as the original statement, i.e. if "if p then q" is valid, then "if not q then not p" is also valid.
John
My calculator said it, I believe it, that settles it
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