"Rules to Infinity: The Normative Role of Mathematics in Scientific Explanation" by Michael Friedman delves into the complex and often debated relationship between mathematics and scientific explanation. It doesn't just ask if mathematics is necessary for scientific explanations, but how it contributes and what its role should be. Friedman argues for a "normative" role, meaning that mathematics doesn't just describe the world, it also sets standards for what counts as a good explanation.