TITLE: What is the prerequisite knowledge for learning Galois theory?
QUESTION [17 upvotes]: What is the prerequisite knowledge for learning Galois theory? I don't know what a ring is.

REPLY [13 votes]: If you don't know a great deal of abstract algebra so far, maybe "A First Course in Abstract Algebra" by Fraleigh might be a good place to start, as it includes all the prerequisites (groups, rings, fields, linear algebra) as well as a very readable treatment of Galois Theory itself.