That answers a different question. The empirical success of the equation in question is strong evidence that the theory captures something about the universe, however it does not prove that the proposition exists, or is true, independently of any language or conceptual framework.
Technologies working can test physical predictions. They cannot test the metaphysical claim that facts have truth independent from common language. Simply asserting that they do is the realism that I am disputing.
Also, the proposition in question is made in a certain language, and is not true in all possible languages.
Technologies working can test physical predictions. They cannot test the metaphysical claim that facts have truth independent from common language. Simply asserting that they do is the realism that I am disputing.
Also, the proposition in question is made in a certain language, and is not true in all possible languages.