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381 bytes added ,  21:57, August 16, 2015
It's interesting that the comments above compared this with E=mc<sup>2</sup>, because in both cases it is simply a redefinition rather than a derivation.
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Andy, what do you think is "arbitrary" about the square root of -1? Extending a field by the root of an equation  is a well understood procedure (and ''i'' or ''-i'' will lead to the same result....) --[[User:AugustO|AugustO]] ([[User talk:AugustO|talk]]) 14:43, 16 August 2015 (EDT)
 
Andy, what do you think is "arbitrary" about the square root of -1? Extending a field by the root of an equation  is a well understood procedure (and ''i'' or ''-i'' will lead to the same result....) --[[User:AugustO|AugustO]] ([[User talk:AugustO|talk]]) 14:43, 16 August 2015 (EDT)
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:The square root of negative one is imaginary; Euler's formula is simply a definition rather than a mathematically derived theorem.  It's interesting that the comments above compared this with E=mc<sup>2</sup>, because in both cases it is simply a redefinition rather than a derivation.--[[User:Aschlafly|Andy Schlafly]] ([[User talk:Aschlafly|talk]]) 17:57, 16 August 2015 (EDT)
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