yuanshan
Re:YouTube Channels to Level Up Your Programming Skills
on Friday September 25, 2020 @10:12AM (#24589895)
“The only way to learn a new programming language is by writing programs in it”. -- <K & R>
Re:Discrete Mathematics: An Open Introduction, 3rd edition
on Sunday May 17, 2020 @08:39PM (#23216969)
There is an open abstract algebra book that is similar, also rendered by pretextbook framework.
Re:Mathematics for the Adventurous Self-Learner
on Sunday February 23, 2020 @09:03PM (#22401037)
Usually, some people will post some or almost all of the solutions online if the textbook is really famous, for instance, baby rudin.
Although rarely, some authors do provide solutions, like Knuth's books, Stephen Abbott's Understanding Anaylsis, etc.
For immediate feedback, maybe you can checkout [0] to learn some formal proof by doing interactive proving.
[0] http://wwwf.imperial.ac.uk/~buzzard/xena/natural_number_game...
BTW, you can always ask questions on https://math.stackexchange.com