A theorem is a statement that can be proven via logic which generally stems from a collection of postulates or axioms. They have been in use since Euclidean geometry as the basis of geometrical facts.
Some famous theorems include:
- The Pythagorean Theorem
- Formulas for volume and surface area
- Stokes's Theorem
- The Fundamental Theorem of Algebra
- The Inscribed Angle Theorem
- The Triangle Angle Sum Theorem
- The American College Dictionary. Random House. New York, 1956.
- "Geometry". The New Encyclopedia Britannica. 15th ed.
- Beauty, Rigor, Surprise