All Numbers Are Equal

我来也

All Numbers Are Equal   
! P1 `' |% [  z, HTheorem: All numbers are equal. Proof: Choose arbitrary a and b, and let t = a + b. Then
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a + b = t
$ A6 L2 D+ |1 m. F(a + b)(a - b) = t(a - b)
, v+ |3 `, ?' t+ [$ i8 ra^2 - b^2 = ta - tb
a^2 - ta = b^2 - tb
7 j, u5 S0 H& L' {! ba^2 - ta + (t^2)/4 = b^2 - tb + (t^2)/4
' s) R7 Y) s* ]" _! E(a - t/2)^2 = (b - t/2)^2
1 Q9 R4 ]0 Y- Wa - t/2 = b - t/2
$ J- a/ L) B( s5 l8 s- i) y1 G+ X5 da = b
1 S2 j4 d. b1 i' r8 F& ~7 s& H
So 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
+ U: T& n0 X! d+ \2 x4 P1 Y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?

( t8 E8 g2 o8 s2 f" _  D, C' ]

高桥

原帖由 我来也 于 2006-6-13 21:47 发表

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