gravitational force works regardless people know about it or now,



所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl

送交者: steven 于 2005-6-21, 10:53:14:

回答: You still don't know what I'm saying 由 eng 于 2005-6-21, 04:01:12:

same as Peano's Axioms, those axioms exist naturally regardless whether people know about it. That is why addition works, it naturally exists.



所有跟贴:


加跟贴

笔名: 密码(可选项): 注册笔名请按这里

标题:

内容(可选项):

URL(可选项):
URL标题(可选项):
图像(可选项):


所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl