All Numbers Are Equal

我来也

All Numbers Are Equal   
& P: Q- n2 w- s: i3 wTheorem: All numbers are equal. Proof: Choose arbitrary a and b, and let t = a + b. Then

& A- C- V9 P1 {& s3 [a + b = t
(a + b)(a - b) = t(a - b)
a^2 - b^2 = ta - tb
$ _# g3 W. S8 ?- Fa^2 - ta = b^2 - tb
4 p$ w* z8 [. T% @* x" Na^2 - ta + (t^2)/4 = b^2 - tb + (t^2)/4
(a - t/2)^2 = (b - t/2)^2
a - t/2 = b - t/2
: J' Q, }/ H0 ma = b

: {: x/ n, i/ A- ESo all numbers are the same, and math is pointless.

老V

朋友    你算错了    在检查一遍吧

我来也

原帖由 老V 于 2006-6-13 11:05 发表
朋友    你算错了    在检查一遍吧

高桥

does a^2=b^2 implies a=b? why not a=-b?

我来也

原帖由 高桥 于 2006-6-13 12:11 发表
does a^2=b^2 implies a=b? why not a=-b?

高桥

原帖由 我来也 于 2006-6-13 21:47 发表
) r; O8 h0 ]1 Q  I( P