Public feed #1373447

Someone

public text v1 · immutable
Raw Edit
·published 2009-03-26 22:52 UTC
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let a = b.
a^2 = ab
a^2 - b^2 = ab - b^2
(a+b)(a-b) = b(a-b)
a+b = b
2b = b
2 = 1