Definition of "inequivalent" [inequivalent]

• Not equivalent (adjective)

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• ""inequivalent" and the inequivalence of two generic theories can be shown almost instantly."
• "In this case, the models of the theory will be mutually non-isomorphic and elementarily inequivalent."
• "Hence, mathematical logic suggests that the application of mathematical physics to the universe as a whole can generate two different types of multiverse: classes of non-isomorphic but elementarily equivalent models; and classes of non-isomorphic and elementarily inequivalent models."