Lydia Patton

Friedrich Albert Lange (b. 1828, d. 1875) was a German philosopher, pedagogue, political activist, and journalist. He was one of the originators of neo-Kantianism and an important figure in the founding of the Marburg school of neo-Kantianism. He is also played a significant role in the German labour movement and in the development of social democratic thought. His book, THE HISTORY OF MATERIALISM, was a standard introduction to materialism and the history of philosophy well into the twentieth century

Scientists working within a paradigm must play by the rules of the game of that paradigm in solving problems, and that is why incommensurability arises when the rules of the game change. If we deny the thesis of the priority of paradigms, then there is no good argument for the incommensurability of theories and thus for taxonomic incommensurability, because there is no invariant way to determine the set of results provable, puzzles solvable, and propositions cogently formulable under a given paradigm.