Introduction to Mathematical Thinking (https://www.coursera.org/learn/mathematical-thinking/home/welcome https://www.coursera.org/learn/mathematical-thinking/ho

Introduction to Mathematical Thinking (https://www.coursera.org/learn/mathematical-thinking/home/welcome https://www.coursera.org/learn/mathematical-thinking/home/we...). A foundational course on mathematical language and thinking, a great refresher course, at least for me after leaving school a long time ago