Variable (mathematics) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Variable (mathematics)" in English language version.

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Beckenbach, Edwin F (1982). College algebra (5th ed.). Wadsworth. ISBN 0-534-01007-5. A variable is a symbol representing an unspecified element of a given set.
Landin, Joseph (1989). An Introduction to Algebraic Structures. New York: Dover Publications. p. 204. ISBN 0-486-65940-2. A variable is a symbol that holds a place for constants.
Boyer, Carl B. (Carl Benjamin) (1991). A History of Mathematics. New York: Wiley. ISBN 978-0-471-54397-8.
A History of Greek Mathematics: From Aristarchus to Diophantus. By Sir Thomas Little Heath. Pg 456
A History of Greek Mathematics: From Aristarchus to Diophantus. By Sir Thomas Little Heath. Pg 458
Fraleigh 1989, p. 276. Fraleigh, John B. (1989). A First Course in Abstract Algebra (4th ed.). United States: Addison-Wesley. ISBN 978-0-201-52821-3.
Foerster 2006, p. 18. Foerster, Paul A. (2006). Algebra and Trigonometry: Functions and Applications (classics ed.). Upper Saddle River, NJ: Prentice Hall. ISBN 978-0-13-165711-3.

books.google.com

Tabak 2014, p. 40. Tabak, John (2014). Algebra: Sets, Symbols, and the Language of Thought. Infobase Publishing. ISBN 978-0-8160-6875-3.
Sorell 2000, p. 19. Sorell, Tom (2000). Descartes: A Very Short Introduction. New York: Oxford University Press. ISBN 978-0-19-285409-4.
Scientific American. Munn & Company. September 3, 1887. p. 148.
Hosch 2010, p. 71. Hosch, William L., ed. (2010). The Britannica Guide to Algebra and Trigonometry. Britannica Educational Publishing. ISBN 978-1-61530-219-2.

doi.org

van Dalen, Dirk (2008). Logic and Structure (PDF) (4th ed.). Springer-Verlag. p. 57. doi:10.1007/978-3-540-85108-0. ISBN 978-3-540-20879-2.

encyclopediaofmath.org

Sobolev, S.K. (originator). "Individual variable". Encyclopedia of Mathematics. Springer. ISBN 1402006098. Retrieved September 5, 2024. A symbol of a formal language used to denote an arbitrary element (individual) in the structure described by this language.

iso.org

"ISO 80000-2:2019" (PDF). Quantities and units, Part 2: Mathematics. International Organization for Standardization. Archived from the original on September 15, 2019. Retrieved September 15, 2019.

iteh.ai

cdn.standards.iteh.ai

"ISO 80000-2:2019" (PDF). Quantities and units, Part 2: Mathematics. International Organization for Standardization. Archived from the original on September 15, 2019. Retrieved September 15, 2019.

loc.gov

lccn.loc.gov

Feys, Robert; Fitch, Frederic Brenton (1969). Dictionary of symbols of mathematical logic. Amsterdam: North-Holland Pub. Co. LCCN 67030883.

stanford.edu

plato.stanford.edu

Shapiro, Stewart; Kouri Kissel, Teresa (2024), "Classical Logic", in Zalta, Edward N.; Nodelman, Uri (eds.), The Stanford Encyclopedia of Philosophy (Spring 2024 ed.), Metaphysics Research Lab, Stanford University, retrieved September 1, 2024

ufpe.br

cin.ufpe.br

van Dalen, Dirk (2008). Logic and Structure (PDF) (4th ed.). Springer-Verlag. p. 57. doi:10.1007/978-3-540-85108-0. ISBN 978-3-540-20879-2.

uky.edu

ms.uky.edu

Diophantine Equations. Submitted by: Aaron Zerhusen, Chris Rakes, & Shasta Meece. MA 330-002. Dr. Carl Eberhart. 16 February 1999.

wolfram.com

mathworld.wolfram.com

Weisstein, Eric W. "Sum". mathworld.wolfram.com. Retrieved February 14, 2022.