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Proof of n^2+2 is not divisible by 5
Now i realize i could use the division algorithm and get to the correct answer, but i was looking for a different way. However this is my first proofing class was wondering if this is valid or not.
Re: Proof of n^2+2 is not divisible by 5
Statements 1 - 5 can all be proved easily with algebra and since they exhaust all the cases we are done.
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