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-> a^2 = b^2 = ab

-> a^2 - b^2 = a^2 - ab

-> (a+b)(a-b) = a(a-b)

divide by (a-b)...

-> a+b = a

as b=a..

-> a+a = a

-> 2a = a

divide by a..

-> 2 = 1

-> 1 = 0 (-1)

-> a = 0 (*a)

This proves that 1=2, 0=1, and in general, any number is equal to 0.

...im confused

~Callum