About: List of mathematical identities

This article lists mathematical identities, that is, identically true relations holding in mathematics. * Bézout's identity (despite its usual name, it is not, properly speaking, an identity) * Binomial inverse theorem * Binomial identity * Brahmagupta–Fibonacci two-square identity * Candido's identity * Cassini and Catalan identities * Degen's eight-square identity * Difference of two squares * Euler's four-square identity * Euler's identity * Fibonacci's identity see Brahmagupta–Fibonacci identity or Cassini and Catalan identities * Heine's identity * Hermite's identity * Lagrange's identity * Lagrange's trigonometric identities * MacWilliams identity * Matrix determinant lemma * Newton's identity * Parseval's identity * Pfister's sixteen-square identity * Sherman–Mo