送交者: eng 于 2005-6-21, 04:01:12:

回答: So if people don't know about the law of gravitational force, 由 steven 于 2005-6-21, 01:16:32:

That exactly proves my point.

You see, people don't have to know about the laws regarding gravity to know that they will not be able to jump over the roof.

Similarly, people don't have to know Peano's Axioms to know how to do addition.

• gravitational force works regardless people know about it or now, - steven (142 bytes) 2005-6-21, 10:53:14

加跟贴