Zenodo. 2025A finite, exact approach to digit symmetry and self-similarity with implications for the foundations of mathematics and even stochastics. Especially in regard to brownian motion. Every finite natural number other then one digit numbers have a Mirror-Pair. Thus any finite natural two digit number has a Mirror-Pair. If the pair is plugged in into the function M_b(x) it becomes it’s Mirror-Pair, and if it’s Mirror-Pair is plugged into the function M_b(x) it arrives back at itself agai