I disagree re: biology and chemistry. Certainly they are epistemically useful simplifications of the other pillars, but they are not foundational or fundamental.
Physics is not math because it's an empirical rather than a priori exploration. We are trying to reproduce the function governing natural laws, where in mathematics we are exploring the properties of functions. Computer science in turn is concerned with the construction of mathematical structures via algorithms, and so physics will be one such construction.
I think trying to place humanities and the arts under "knowledge" is a category error. These fields don't produce knowledge as its commonly understood, as a corpus of mind-independent facts and their relationships. Certainly facts appear in these fields, such as historical facts and authorship, but I don't think building a corpus of facts is not the main purpose.
It's not universally accepted that it is fallacy. And for whatever it misses, reductionism is a hell of a tool that has been incredibly useful in understanding the world.
Of course, so are chemistry and biology, so blithely dismissed in the parent comment.
Physics is not math because it's an empirical rather than a priori exploration. We are trying to reproduce the function governing natural laws, where in mathematics we are exploring the properties of functions. Computer science in turn is concerned with the construction of mathematical structures via algorithms, and so physics will be one such construction.
I think trying to place humanities and the arts under "knowledge" is a category error. These fields don't produce knowledge as its commonly understood, as a corpus of mind-independent facts and their relationships. Certainly facts appear in these fields, such as historical facts and authorship, but I don't think building a corpus of facts is not the main purpose.