I'm watching an animated interview of Buckminster Fuller [1] when I see this sequence of equations:
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
And I'm thinking, that looks right, as far as I can remember algebra, but two can't be equal to one, can it?
I had to work through it by hand to find the problem, and now, gentle reader, you get to work through it yourself.
You're welcome.