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Hoyle-Narlikar theory comparison table

Subject	is a kind of	has definition
cosmology theory	astronomy theory
Hoyle-Narlikar theory	cosmology theory	A reformulation of the general theory of relativity that incorporates and extends Mach's principle (q.v.). In this theory, the inertial mass of a particle is a function of the masses of all other particles, multiplied by a coupling constant which is a function of cosmic epoch. In cosmologies based on this theory, the gravitational constant G decreases strongly with time.

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