• Tarski's undefinability theorem, stated and proved by Alfred Tarski in 1933, is an important limitative result in mathematical logic, the foundations...
    16 KB (2,271 words) - 18:11, 23 April 2025
  • theorems were among the first of several closely related theorems on the limitations of formal systems. They were followed by Tarski's undefinability...
    92 KB (12,173 words) - 10:15, 18 May 2025
  • Tarski's theorem may refer to the following theorems of Alfred Tarski: Tarski's theorem about choice Tarski's undefinability theorem Tarski's theorem...
    740 bytes (121 words) - 13:08, 29 June 2023
  • theorem, Russell's paradox, Gödel's first incompleteness theorem, Turing's solution to the Entscheidungsproblem, and Tarski's undefinability theorem....
    3 KB (365 words) - 18:43, 29 December 2024
  • discoveries, most notably Tarski's undefinability theorem using the same formal technique Kurt Gödel used in his incompleteness theorems. Roughly, this states...
    9 KB (1,050 words) - 17:46, 9 July 2024
  • Thumbnail for Alfred Tarski
    Deductive Sciences. Tarski's 1969 "Truth and proof" considered both Gödel's incompleteness theorems and Tarski's undefinability theorem, and mulled over...
    50 KB (5,757 words) - 14:34, 10 May 2025
  • Thumbnail for Theorem
    arithmetic Tarski's undefinability theorem Church-Turing theorem of undecidability Löb's theorem Löwenheim–Skolem theorem Lindström's theorem Craig's theorem Cut-elimination...
    34 KB (4,409 words) - 00:49, 4 April 2025
  • Gödel's first incompleteness theorem Tarski's undefinability theorem Halting problem Kleene's recursion theorem Diagonalization (disambiguation) This disambiguation...
    574 bytes (87 words) - 10:58, 6 August 2024
  • Łoś–Tarski preservation theorem Knaster–Tarski theorem (sometimes referred to as Tarski's fixed point theorem) Tarski's undefinability theorem Tarski–Seidenberg...
    2 KB (181 words) - 17:41, 16 March 2022
  • In mathematics, Tarski's theorem, proved by Alfred Tarski (1924), states that in ZF the theorem "For every infinite set A {\displaystyle A} , there is...
    4 KB (583 words) - 22:20, 18 October 2023
  • whether A(x) = 0 for some x are unsolvable. By contrast, the Tarski–Seidenberg theorem says that the first-order theory of the real field is decidable...
    6 KB (704 words) - 08:03, 17 October 2024
  • known as Tarski's undefinability theorem, was discovered independently by Gödel (when he was working on the proof of the incompleteness theorem) and by...
    31 KB (4,462 words) - 12:56, 3 May 2025
  • In set theory, Kőnig's theorem states that if the axiom of choice holds, I is a set, κ i {\displaystyle \kappa _{i}} and λ i {\displaystyle \lambda _{i}}...
    8 KB (1,232 words) - 18:17, 6 March 2025
  • Automated theorem proving (also known as ATP or automated deduction) is a subfield of automated reasoning and mathematical logic dealing with proving...
    28 KB (2,933 words) - 21:40, 29 March 2025
  • Schröder–Bernstein theorem. There is also a proof which uses Tarski's fixed point theorem. Myhill isomorphism theorem Netto's theorem, according to which...
    20 KB (2,374 words) - 11:57, 23 March 2025
  • Thumbnail for Definable real number
    Entscheidungsproblem Ordinal definable set Richard's paradox Tarski's undefinability theorem Turing, A. M. (1937), "On Computable Numbers, with an Application...
    11 KB (1,502 words) - 02:55, 9 April 2024
  • incompleteness theorem, because Tarski's theory lacks the expressive power needed to interpret Robinson arithmetic (Franzén 2005, pp. 25–26). Alfred Tarski worked...
    27 KB (3,825 words) - 07:36, 15 March 2025
  • compactness theorem states that a set of first-order sentences has a model if and only if every finite subset of it has a model. This theorem is an important...
    14 KB (1,947 words) - 04:46, 30 December 2024
  • Thumbnail for Kurt Gödel
    Mathematical Platonism Primitive recursive functional Strange loop Tarski's undefinability theorem World Logic Day Gödel machine Kreisel, G. (1980). "Kurt Godel...
    54 KB (5,819 words) - 03:35, 15 May 2025
  • defines F without reference to other sets. This is related to Tarski's undefinability theorem. The example of ZFC illustrates the importance of distinguishing...
    12 KB (1,800 words) - 09:55, 18 November 2024
  • and projective sets of reals; however for reasons related to Tarski's undefinability theorem the notion of a definable set of reals cannot be defined in...
    8 KB (1,124 words) - 10:52, 13 February 2025
  • excusable, it is not negligence. Gödel's incompleteness theorems: and Tarski's undefinability theorem Ignore all rules: To obey this rule, it is necessary...
    57 KB (7,903 words) - 13:42, 30 April 2025
  • In mathematical logic, the Löwenheim–Skolem theorem is a theorem on the existence and cardinality of models, named after Leopold Löwenheim and Thoralf...
    22 KB (2,795 words) - 12:03, 4 October 2024
  • Löwenheim–Skolem theorem gives elementary extensions of any infinite first-order structure of arbitrarily large cardinality. The Tarski–Vaught test (or Tarski–Vaught...
    8 KB (956 words) - 00:42, 21 September 2023
  • Thumbnail for Bradley Dowden
    Education Thesis A Theory of Truth: The Liar Paradox and Tarski's Undefinability Theorem (1979) Philosophical work Era Contemporary philosophy Region...
    3 KB (209 words) - 23:06, 9 May 2025
  • In mathematical logic, Tarski's high school algebra problem was a question posed by Alfred Tarski. It asks whether there are identities involving addition...
    10 KB (1,701 words) - 10:34, 16 March 2025
  • Thumbnail for Gödel's completeness theorem
    Gödel's completeness theorem is a fundamental theorem in mathematical logic that establishes a correspondence between semantic truth and syntactic provability...
    17 KB (2,330 words) - 17:38, 29 January 2025
  • Thumbnail for Axiom of choice
    theorem. In fact, Zermelo initially introduced the axiom of choice in order to formalize his proof of the well-ordering theorem. Set theory Tarski's theorem...
    59 KB (7,917 words) - 15:47, 15 May 2025
  • University of California, Berkeley—published his celebrated theorem on the undefinability of the notion of truth. Notable members of the Warsaw School of Mathematics...
    2 KB (197 words) - 21:52, 9 October 2024
  • is augmented with Tarski's axiom. Assuming that axiom turns the axioms of infinity, power set, and choice (7 – 9 above) into theorems. Many important statements...
    46 KB (6,252 words) - 14:45, 16 April 2025