If you're looking to create your own solutions and share them (while being mindful of copyright), here's a basic approach:
For generations of mathematics undergraduates and graduate students, by David S. Dummit and Richard M. Foote has served as the canonical gateway to advanced algebraic reasoning. Often simply called "D&F" or "the yellow book," its dense exposition, rigorous proofs, and legendary problem sets are both feared and revered. dummit+and+foote+solutions+chapter+4+overleaf+full
For any graduate student or advanced undergraduate tackling abstract algebra, is often considered the "gold standard." However, Chapter 4—which dives deep into Group Theory and specifically Group Actions —is where the technicality significantly ramps up. If you're looking to create your own solutions
-subgroups win. Sarah: They aren't winning. We just forgot the argument. " its dense exposition