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A coordinatesystem is a mapping which maps a mathematical notion on a physical history. A physical law is represented by a mathematical equation. A mathematical equation is a mapping which maps a mathematical notion on 1 or 0. Let M be a coordinatesystem and let E represent a physical law. Then the physical law is represented by a mapping E・M^{1}. M^{1} and E・M^{1} is defined as follows. [E・M^{1}](h) ≡ E(M^{1}(h)) and M(M1(h)) ≡ h for any physical history h. Nature gives us a physical law as a whole. Who divides it into a coordinatesystem and an equation is the human being. There is only physical laws in Nature. Division is made by the human being. So, I assume that we can shift the boundary between the coordinatesystem and the equation.  The idea of the content of this page was published by me in web videos. It had been since 2009/07/17 till 2011/03/08. A video on 2011/03/08 has an expression which reminds us of a tidal wave. It is a part after 10:33 before 11:05 of the video. East Japan Big Earthquake Disaster came on 2011/03/11. Its vibration started at the end of 2011/03/09. 

Author Yuichi Uda, Write start at 2019/10/06/14:22JST, Last edit at 2019/10/08/14:00JST  






