It’s not that his math skills needed brushing up. Noether’s Theorem was proven as a result of the need to for conservation laws in his theory of general relati

It’s not that his math skills needed brushing up. Noether’s Theorem was proven as a result of the need to for conservation laws in his theory of general relativity. She discovered (invented?) the mathematics that demonstrated the existence of conservation laws. Needing mathematics that hadn’t been discovered yet does not count as an example of his math skills needing to be touched up here or there.