Tour:Getting started (beginners)
We are about to get started on the guided tour for beginners. To get the most from this guided tour, stay faithful to it, i.e. read the articles in the order suggested. You will have various opportunities for detours: some other articles to read so as to get a better understanding of what you're touring, and some just for entertainment. Please try to open these detours in different windows/tabs so that you do not lose track of where you are in the main tour.
This tour is not intended to be a complete introduction to group theory, or a replacement for textbook or course materials. Rather, it is intended as a supplement. To get the most from this tour, keep open your main course book or lecture notes and make sure you can map what's there on the wiki, with what you're learning in the course or from the textbook.
Continue to the definition of a group