funonweb

I have another intresting theorm that proves 1 = 2.

let a = b
hence, a2 = ab                             ------ (multiplying both sides by a)
hence, a2 - b2= ab - b2                             ------ (subtracting b2 from both sides)
hence, (a+b)(a-b) = b(a-b)                             -------(factorizing)
hence, (a+b) = b

but since a = b we get,

a + a = a                             ------ (replacing b by a)
hence, 2a = a
hence 2 = 1 or 1 = 2