Asked by Andrea
Can someone please help me with this math problem: Investigate the validity of the following argument.
All of the original Harry Potter books were written by J.K. Rowling.
Dirty Harry was not written by J.K. Rowling.
Conclusion: Dirty Harry is not an original Harry Potter book.
I also have to use a Venn diagram to show whether it's valid or invalid.
All of the original Harry Potter books were written by J.K. Rowling.
Dirty Harry was not written by J.K. Rowling.
Conclusion: Dirty Harry is not an original Harry Potter book.
I also have to use a Venn diagram to show whether it's valid or invalid.
Answers
Answered by
oobleck
study the contrapositive.
If p→q, then ~q → ~p
If p→q, then ~q → ~p
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