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Probably the stupidest question I have ever asked, but is it possible to prove that the multiplication of two negatives yields a positive? Go easy on me I've asked better questions :D
BiP
BiP
What axioms are you accepting??As rigorous as rigorous gets :D
Sure, [itex]\mathbb{Z}_2[/itex] is not an ordered field.Ahh, so this is only true for ordered fields then? Is there any number system where the field is not ordered (i.e. does not satisfy axiom II) ?
BiP