What are some of the most often used mathematical symbols? The (infinity sign) is a well-known mathematical symbol. This could be due to the fact that “infinity” represents something that has no beginning and never ends. In 1655, John Wallis proposed the concept of endless objects. The emblem was a twist on an ancient image of a dragon chasing and attempting to eat its own tail. People are captivated to the concept of infinity because it can be associated with endless love, money, and all things good.