Other Definitions
metamathematics (dict)
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MetamathematicsMetamathematics is mathematics used to study mathematics. It was originally differentiated from ordinary mathematics in the 19th century to focus on what was then called the foundations problem in mathematics. Important branches include proof theory and model theory. The original meaning of David Hilbert is closest to proof theory (see Hilbert's program). These would nowadays be considered part of Mathematical logic, which (according to Googlefight) is much more widely used than the obsolete term metamathematics still used by the Library of Congress and the books [http://www.amazon.com/exec/obidos/tg/detail/-/1402003706 Metamathematics of Fuzzy Logic (2002) & Gdel, Escher, Bach]. Many issues regarding the foundations of mathematics (there is no longer necessarily considered to be any one "problem") and the philosophy of mathematics touch on or use ideas from metamathematics. The working assumption of metamathematics is that mathematical content can be captured in a formal system. On the other hand, quasi-empiricism in mathematics, the cognitive science of mathematics, and ethno-cultural studies of mathematics, which focus on scientific method, quasi-empirical methods or other empirical methods used to study mathematics and mathematical practice by which such ideas become accepted, are non-mathematical ways to study mathematics. See Richard's paradox for an example of the types of contradictions which can easily occur if one doesn't distinguish between mathematics and metamathematics.
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