tightgas@nmtvax.UUCP (09/12/83)
The 'proofs' that use square roots apparently depend on the ambiguity of the square root. 1 and -1 are both square roots of 1. Likewise, i and -i are both square roots of -1. If the inappropriate one of the square roots is used in an equation, then the equality can be destroyed. An obvious example is: 1 = 1 sqrt(1) = sqrt(1) 1 = -1 Neal Kilmer New Mexico Tech