Fundamental

The Simple English Wiktionary has a definition for: fundamental.

Fundamental may refer to:

• Fundamental frequency, as in music or phonetics
• Fundamentalism, the belief in the basic ideas based on the faith of a system of thought
• Any of a number of fundamental theorems in mathematics, such as:
  • The fundamental theorem of algebra
  • The fundamental theorem of arithmetic

This disambiguation page lists articles that are about something that can be called Fundamental. If an internal link led you here, you may wish to change the link to point directly to the article meant.