Through a simple thought experiment, this paper shows that there must be a shared foundation of mathematics, information science, natural science, social science, and theology. The thought experiment is to ask a volunteer to write down an arbitrary real number between 0 and 1 with many digits....

This paper is an attempt to incorporate the human ability of recognition, especially, the ability to recognize the society to which they belong, with the economic equilibrium theory characterized by a description of society through individual rational behaviors. Contents may be classified into...