I didn't solve the majority of exercises from this section because I'm studying this book for abstract algebra/group theory specifically. If you want to contribute solutions for this section, you can send me solutions or make pull requests via github, here is the repository link. If you decide to do so, there is a "exercise-template.md" file and solved exercises from Group Theory section that you can use as a reference, for the purposes of stylistic uniformity. As of now I'm not sure how would I credit other people for their solutions, but we can figure this out if any solutions happen to be contributed.