We should not think that everything can be proved with physics and mathematics. All physics and also mathematics is based on assumptions, each of which is variously called a hypothesis or axiom or postulate, etc.
A hypothesis is a supposition without assuming that it is true. It would not fair to ask anybody to prove the universal law of gravitation, because it cannot be proved. It can be verified by experiments.
An Axiom is self-evident truth while a Model is a theory proposed to explain observed phenomena.
bekar
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