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What is a false contrapositive?

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Source: — Critical Reasoning |
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by pradeepkaushal9518 » Tue Jul 13, 2010 10:03 pm
how it is related with CR?
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by money9111 » Tue Jul 13, 2010 10:37 pm
Veritas CR Book 2 says that for inference questions to beware of False Contrapositives
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by kvcpk » Wed Jul 14, 2010 4:13 am
money9111 wrote:Veritas CR Book 2 says that for inference questions to beware of False Contrapositives
They would have related verbal to math logic.

if p implies q, contrapositive says that if not q then not p

By false contrapositive they would have meant - Beware of statements that try to say if not q then not p But infact do not do so.

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by kvcpk » Wed Jul 14, 2010 4:19 am
Let me guess an example:

if the statement says:
All even numbers are divisible by 2.

Contrapaositive is
Any number not divisible by 2 is not even.

false contrapositive could be:
Any number not divisible by 2 is even.
or
some number not divisible by 2 is even

...

Hope this helps!!
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