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seen Jul 14 at 4:38

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asked Using the AM-GM inequality on 2 elements to deduce it's true for 4?
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revised In field ($F, +, \cdot$) , how can I prove $x^2 =1\implies x=1,-1$
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accepted In field ($F, +, \cdot$) , how can I prove $x^2 =1\implies x=1,-1$
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comment In field ($F, +, \cdot$) , how can I prove $x^2 =1\implies x=1,-1$
still feeling stupid... Thanks for the quick response both of you.
Nov
2
comment In field ($F, +, \cdot$) , how can I prove $x^2 =1\implies x=1,-1$
wow, that was so simple I feel stupid now... Thanks
Nov
2
asked In field ($F, +, \cdot$) , how can I prove $x^2 =1\implies x=1,-1$