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Theory_Rejection_theorem_(Barseghyan-2015)
According to the theory rejection theorem, a theory becomes rejected only when other theories that are incompatible with the theory become accepted.
Implicit in the theorem is the idea that each theory is assessed on an "individual basis by its compatibility with the propositions of the newly accepted theory".p. 168 If it turns out that a previously accepted theory is compatible with the newly accepted theory, it remain in the agent's mosaic.
Barseghyan notes that, although we normally expect a theory to be replaced by another theory in the same "field" of inquiry, this is not necessarily the case. For example, he writes, "HSC knows several cases where an accepted theory became rejected simply because it wasn’t compatible with new accepted theories of some other fields".p. 171
Barseghyan summarizes the theory rejection theorem as such:
In short, when the axioms of a theory are replaced by another theory, some of the theorems may nevertheless manage to stay in the mosaic, provided that they are compatible with the newly accepted theory. This is essentially what the theory rejection theorem tells us. Thus, if someday our currently accepted general relativity gets replaced by some new theory, the theories that followed from general relativity, such as the theory of black holes, may nevertheless manage to remain in the mosaic. p. 171
This is a definition of Method that states "A set of criteria for theory evaluation."
This is an answer to the question Mechanism of Theory Acceptance that states "In order to become accepted into the mosaic, a theory is assessed by the method actually employed at the time."
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