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→Unique square root of -1 necessary for complex analysis: Why do you say "assumes"?
::Complex analysis assumes, for example, not only that the square root of -1 exists, but that the cube of the square root of -1 is always equal to the negative of itself.--[[User:Aschlafly|Andy Schlafly]] 11:24, 8 April 2012 (EDT)
::Complex analysis assumes, for example, not only that the square root of -1 exists, but that the cube of the square root of -1 is always equal to the negative of itself.--[[User:Aschlafly|Andy Schlafly]] 11:24, 8 April 2012 (EDT)
::: Why do you say "assumes"? All of those properties are provable from either of the above two definitions of the complex numbers. [[User:RSchlafly|RSchlafly]] 12:20, 8 April 2012 (EDT)