Originally posted by skywalker
x^2 does equal x when x is 1 or 0
You can interchange x and 1 if x = 1
He's wrong, but your reasons that he is wrong are also wrong
x^2 does equal x when x is 1 or 0
You can interchange x and 1 if x = 1
He's wrong, but your reasons that he is wrong are also wrong
(x - 1)(x + 1) = x - 1
x + 1 = 1
Does not hold when x is replaced with 1.
I can't explain it right, but the answer is consistancy. There are built in logic in maths that menas that 1 cannot equal 2, because it would involve inconsistency. It's too late for me to work it out, and I can't remember the lecture on it, but I do remember it was consistancy that means his proof does not hold water.
Comment