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All Theorems

Proved mathematical results, statements with an accepted proof within the mathematical community. Belongs here: theorems, grouped below by the branch of mathematics the result belongs to. Does not belong here: unproved claims, filed as conjectures, even ones widely believed true.

All Theorems

907 entries

Branch

Topic Area

Proved

Proved By

Named After

Statement Form

Nash-Williams Formula

Nernst's Theorem

Newton's Identities

Newton's Theorem (Quadrilateral)

Neyman-Pearson Lemma

Nicomachus's Theorem

Nielsen-Schreier Theorem

Nine-Point Circle Theorem

Niven's Theorem

No Free Lunch Theorem

No-Cloning Theorem

Noether Normalization Lemma

Noether's Isomorphism Theorems

Noether's Second Theorem

Noether's Theorem

No-Hair Theorem

No-Trade Theorem

Odd Number Theorem

Okishio's Theorem

Omitting Types Theorem

Onsager Reciprocal Relations

Open Mapping Theorem (Complex Analysis)

Open Mapping Theorem (Functional Analysis)

Optical Theorem

Optional Stopping Theorem

Ore's Theorem

Ostrowski's Theorem

Pappus's Theorem

Parallel Axis Theorem

Paris-Harrington Theorem

Parseval's Theorem

Pascal's Theorem

Pasch's Theorem

Pataraia's Theorem

PCP Theorem

Peano Existence Theorem

Pell's Equation

Penrose-Hawking Singularity Theorems

Pentagonal Number Theorem

Perfect Graph Theorem

Perpendicular Axis Theorem

Perron-Frobenius Theorem

Petersen-Morley Theorem

Petersen's Theorem

Peter-Weyl Theorem

Phragmen-Lindelof Principle

Picard Theorem

Picard-Lindelof Theorem

Pick's Theorem

Pitot Theorem

Planar Separator Theorem

Plancherel Theorem

Poincare Conjecture

Poincare Duality Theorem

Poincare Lemma

Poincare Recurrence Theorem

Poincare-Bendixson Theorem

Poincare-Birkhoff-Witt Theorem

Poincare-Hopf Theorem

Poisson Summation Formula

Pokhozhaev's Identity

Polya Enumeration Theorem

Polya-Vinogradov Inequality

Pomeranchuk's Theorem

Pompeiu's Theorem

Poncelet's Closure Theorem

Poncelet-Steiner Theorem

Poppy-Seed Bagel Theorem

Post's Theorem

Poynting's Theorem

Prigogine's Theorem

Prime Number Theorem

Primitive Element Theorem

Principal Axis Theorem

Principal Ideal Theorem

Probabilistic Method

Proof by Exhaustion

Proof by Infinite Descent

Proof of Fermat's Last Theorem for Specific Exponents

Proof that 22/7 Exceeds Pi