This is the introduction to my series on Basic Mathematics by Serge Lang. Basic Mathematics will get you up to speed so you're ready for Calculus and thus Physics. It will teach you logic, theorems and proofs at the same time reviewing everything you should've learned in algebra, geometry, and trigonometry. If you're a beginner at more advanced mathematics, or just want to review, this is the series for you. Support Real Physics by buying the book through this Amazon affiliate link: https://amzn.to/2I5yIHr Here's my Patreon account if you want to give me money: https://www.patreon.com/realphysics Other ways to support Real Physics: https://youtu.be/44nldGgJCiw Playlist: https://www.youtube.com/playlist?list=PLMcpDl1Pr-viA25VUkHNmcUkWx9usPgyb Thank you!