Raschka's Reasoning from Scratch Round 3 Builds a Math Verifier

Sebastian Raschka's third "Reasoning from Scratch" video covers building a math verifier for evaluating language models and for later reinforcement learning with verifiable rewards (RLVR) training. The walkthrough covers extracting final answers from boxed outputs, normalizing them, checking mathematical equivalence, and running evaluation on the MATH-500 dataset.