Related:<p><i>Book of Proof – An introduction to the methods of proving mathematical theorems</i> - <a href="https://news.ycombinator.com/item?id=12101328">https://news.ycombinator.com/item?id=12101328</a> - July 2016 (27 comments)<p>Also this related ongoing thread:<p><i>Basics of Proofs (2017) [pdf]</i> - <a href="https://news.ycombinator.com/item?id=36353322">https://news.ycombinator.com/item?id=36353322</a> - June 2023 (32 comments)