Math From Scratch 0004: The Group Axioms March 5, 2011 This lesson defines “algebra” and starts to deal with a particular type of algebra. Lesson four: The Group Axioms is available here. Share this:Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)