We want to prove that .
Proof: . .
Does this look right? I drew a number line and used 'intuitive reasoning' to show that it is true.
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Originally Posted by shilz222 We want to prove that . Forward.
If then thus, .
Argue by contradiction, say then choosing . This leads to contradiction, why?
If then , but then . Thus . Thus .
contradicts the fact that .
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