Have you heard the phrase “X is a markup language” where X could be HTML, Markdown, LaTeX, or XML? But what exactly is a markup language? Let’s do a thought experiment. Imagine that you’re a busy author who writes books but don’t want to have to format the book yourself. You don’t want to worry about the table of contents, the page numbers, the footnotes, the bold words… So you engage a publisher that will format your book properly.

Understanding Operations in Group Theory

What’s dark chocolate?

Dark chocolate is a form of chocolate made from…

Can you understand what dark chocolate is if you don’t know anything about chocolate? That’s the same thing for operations in group theory.

A group is a set equipped with a binary operation that satisfies four axioms. Like the definition of dark chocolate, the notion of operation is coupled with the definition of a group. Learn about operations and sharpen your knowledge of groups for free!