Equivalence theorem

Equivalence theorem may refer to:


 * Economics
 * Ricardian equivalence, a principle in economics
 * Revenue equivalence, a concept in auction theory


 * Mathematics and physics
 * Compass equivalence theorem, a theorem in straightedge and compass construction
 * Equivalence principle, in general relativity
 * Lax equivalence theorem, a theorem in the analysis of finite difference methods
 * Optical equivalence theorem, a theorem in quantum optics
 * Surface equivalence principle, a principle in electromagnetism and antenna theory