Home›Topology›Statement Form›EquationConceptEquationAlgebraReference and ClassificationDevelopingA mathematical statement that two expressions are equal, joined by an equals sign. Solving an equation means finding which values of its unknowns make the statement true, and the equals sign itself was invented only in 1557, well after equations had been written and solved for centuries using prose and other notations. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/FactsEquationConnectionsSourcesTake a Related QuizComments (0)Reader Challenges (0)FactsOrigin YearWell-attested1557 11557 marks Robert Recorde's invention of the equals sign in The Whetstone of Witte, the origin of the modern written form of an equation; equations as mathematical statements, solved in prose and other notations, are centuries older, as the description notes.EquationFilter Results8 entriesBranchAllAlgebraic Topology (3)Differential Topology (1)Functional Analysis (1)Topology (3)Topic AreaAllAlgebraic Topology (4)Fixed-Point Theorems (2)Geometric and Differential Topology (2)ProvedAll1915 (1)1926 (1)1934 (1)1937 (1)1953 (1)1963 (1)Proved ByAllHans Freudenthal (1)Henri Poincaré (1)Juliusz Schauder (1)Michael Atiyah (1)Samuel Eilenberg (1)Solomon Lefschetz (1)Show ResultsBrowseCompareSelect all 8Alexander DualityEquationAtiyah-Singer Index TheoremEquationEilenberg-Zilber TheoremEquationFreudenthal Suspension TheoremEquationKunneth TheoremEquationLefschetz Fixed-Point TheoremEquationLeray-Schauder Fixed-Point TheoremEquationPoincare-Hopf TheoremEquationConnectionsAssociated WithPolynomial, Concepts Well-attested In BranchAlgebra, Branches of Mathematics Well-attested Source Equation (Wikipedia)tier 2Kind Of Object OfAbel's Summation Formula, Mathematical Objects Well-attested Antoine Equation, Mathematical Objects Well-attested Avrami Equation, Mathematical Objects Well-attested Barometric Formula, Mathematical Objects Well-attested Bellard's Formula, Mathematical Objects Well-attested Bochner's Formula, Mathematical Objects Well-attested Boltzmann's Entropy Formula, Mathematical Objects Well-attested Cauchy's Equation, Mathematical Objects Well-attested Cavalieri's Quadrature Formula, Mathematical Objects Well-attested Competitive Lotka-Volterra Equations, Mathematical Objects Well-attested Continuity Equation, Mathematical Objects Well-attested Duffing Equation, Mathematical Objects Well-attested Ergun equation, Mathematical Objects Well-attested Euler-Maclaurin Formula, Mathematical Objects Well-attested Euler's Continued Fraction Formula, Mathematical Objects Well-attested Euler's Equations (Rigid Body Dynamics), Mathematical Objects Well-attested Faà di Bruno's Formula, Mathematical Objects Well-attested Faulhaber's Formula, Mathematical Objects Well-attested Fisher equation, Mathematical Objects Well-attested Gauss Sum, Mathematical Objects Well-attested Generalized Lotka-Volterra Equation, Mathematical Objects Well-attested Hammett equation, Mathematical Objects Well-attested Hook Length Formula, Mathematical Objects Well-attested Jacobi Triple Product, Mathematical Objects Well-attested Jacobi's formula, Mathematical Objects Well-attested Jarzynski Equality, Mathematical Objects Well-attested Kelly Criterion, Mathematical Objects Well-attested Kirchhoff's Diffraction Formula, Mathematical Objects Well-attested Koide Formula, Mathematical Objects Well-attested Kubo Formula, Mathematical Objects Well-attested Legendre's Formula, Mathematical Objects Well-attested London equations, Mathematical Objects Well-attested Lotka-Volterra Equations, Mathematical Objects Well-attested Perron's Formula, Mathematical Objects Well-attested Price equation, Mathematical Objects Well-attested Quotient Rule, Mathematical Objects Well-attested Replicator Equation, Mathematical Objects Well-attested Rodrigues' formula, Mathematical Objects Well-attested Rodrigues' Rotation Formula, Mathematical Objects Well-attested Rule of Succession, Mathematical Objects Well-attested Semi-Empirical Mass Formula, Mathematical Objects Well-attested Sextic Equation, Mathematical Objects Well-attested Sherman-Morrison Formula, Mathematical Objects Well-attested Shoelace Formula, Mathematical Objects Well-attested Slutsky equation, Mathematical Objects Well-attested Steinhart-Hart Equation, Mathematical Objects Well-attested System of Equations, Mathematical Objects Well-attested System of linear equations, Mathematical Objects Well-attested Tanaka's Formula, Mathematical Objects Well-attested Tsiolkovsky Rocket Equation, Mathematical Objects Well-attested Showing 1 to 50 of 57 in Kind Of Object Of, page 1 of 2.12Next →Statement Form OfPentagonal Number Theorem, Theorems Well-attested Perpendicular Axis Theorem, Theorems Well-attested Pick's Theorem, Theorems Well-attested Pitot Theorem, Theorems Well-attested Plancherel Theorem, Theorems Well-attested Poincare-Hopf Theorem, Theorems Well-attested Poisson Summation Formula, Theorems Well-attested Pokhozhaev's Identity, Theorems Well-attested Polya Enumeration Theorem, Theorems Well-attested Pomeranchuk's Theorem, Theorems Well-attested Poynting's Theorem, Theorems Well-attested Proof of Fermat's Last Theorem for Specific Exponents, Theorems Well-attested Proof that 22/7 Exceeds Pi, Theorems Well-attested Ptolemy's Theorem, Theorems Well-attested Pythagorean Theorem, Theorems Well-attested Pythagorean Trigonometric Identity, Theorems Well-attested Radon-Nikodym Theorem, Theorems Well-attested Ramanujan-Nagell Equation, Theorems Well-attested Rank-Nullity Theorem, Theorems Well-attested Residue Theorem, Theorems Well-attested Riemann-Hurwitz Formula, Theorems Well-attested Riemann-Roch Theorem, Theorems Well-attested Ringel-Youngs Theorem, Theorems Well-attested Routh's Theorem, Theorems Well-attested Roy's Identity, Theorems Well-attested Schur's Lemma (Representation Theory), Theorems Well-attested Schur's Theorem (Ramsey Theory), Theorems Well-attested Schwarz Reflection Principle, Theorems Well-attested Shell Theorem, Theorems Well-attested Shockley-Ramo Theorem, Theorems Well-attested Siacci's Theorem, Theorems Well-attested Silver's Theorem, Theorems Well-attested Skolem-Noether Theorem, Theorems Well-attested Sophie Germain's Theorem, Theorems Well-attested Stanley's Reciprocity Theorem, Theorems Well-attested Stewart's Theorem, Theorems Well-attested Stokes' Theorem, Theorems Well-attested Sturm's Theorem, Theorems Well-attested Tangent-Secant Theorem, Theorems Well-attested Taylor's Theorem, Theorems Well-attested Theorem of the Gnomon, Theorems Well-attested Theorem of Three Moments, Theorems Well-attested Three-Gap Theorem, Theorems Well-attested Titchmarsh Convolution Theorem, Theorems Well-attested Transfinite Recursion Theorem, Theorems Well-attested Transport Theorem, Theorems Well-attested Tutte-Berge Formula, Theorems Well-attested Valiant-Vazirani Theorem, Theorems Well-attested Van Aubel's Theorem, Theorems Well-attested Van Schooten's Theorem, Theorems Well-attested Showing 151 to 200 of 212 in Statement Form Of, page 4 of 5.← Previous12345Next →Sources1. Equation (Wikipedia)tier 2Wikimedia FoundationLead sectionQuote, Lead sectionThe "=" symbol, which appears in every equation, was invented in 1557 by Robert Recorde, who considered that nothing could be more equal than parallel straight lines with the same length.View the SourceTake a Related QuizOrigins of Mathematical ConceptsCovers this kind of entry.Comments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.