"Theorem" joke

Theorem: 3=4Proof: Suppose: a + b = cThis can also be written as: 4a - 3a + 4b - 3b = 4c - 3cAfter reorganizing: 4a + 4b - 4c = 3a + 3b - 3cTake the constants out of the brackets: 4 * (a+b-c) = 3 * (a+b-c)Remove the same term left and right: 4 = 3