Physics Town

continues

Abstraction

Posted on September 29, 2007 by rpflee

“抽象:　抽出相象的地方” –中大教授

e.g.

$1+2=2+1$

$3+2=2+3$

$4+7=7+4$

…

$\to a+b=b+a$

.

.

2007.09.29 Saturday (c) CHK2