离散数学学习资料

https://mitmath.github.io/1806/
https://www.bilibili.com/video/BV16Z4y1U7oU?p=2&spm_id_from=pageDriver&vd_source=0a553436b638c945a2ec4510dfd96c68 https://www.coursera.org/learn/dmathgen/lecture/5M1o2/16-zheng-ming-luo-ji-deng-jie-shi-he-luo-ji-yun-han-shi
https://www.bilibili.com/video/BV1yF411j7Vi?p=3&spm_id_from=pageDriver&vd_source=0a553436b638c945a2ec4510dfd96c6