open textbooks

https://scholarworks.gvsu.edu/books/

 

https://www.tedsundstrom.com/mathematical-reasoning-writing-and-proof

 

http://scholarworks.gvsu.edu/books/9/

posted @ 2024-08-23 22:38  profesor  阅读(2)  评论(0)  编辑  收藏  举报