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searching for Tree (descriptive set theory) 16 found (35 total)

alternate case: tree (descriptive set theory)

Prewellordering (1,214 words) [view diff] no match in snippet view article find links to article

A {\displaystyle A} and is disjoint from B . {\displaystyle B.} Descriptive set theory – Subfield of mathematical logic Graded poset – a graded poset is

Borel hierarchy (1,727 words) [view diff] no match in snippet view article find links to article

the Borel set. The Borel hierarchy is of particular interest in descriptive set theory. One common use of the Borel hierarchy is to prove facts about the

List of general topology topics (401 words) [view diff] no match in snippet view article find links to article

Strong topology Hilbert cube Lower limit topology Sorgenfrey plane Real tree Compact-open topology Zariski topology Kuratowski closure axioms Unicoherent

Wadge hierarchy (1,336 words) [view diff] no match in snippet view article find links to article

In descriptive set theory, within mathematics, Wadge degrees are levels of complexity for sets of reals. Sets are compared by continuous reductions. The

Set theory (6,586 words) [view diff] no match in snippet view article find links to article

extensions of Ramsey's theorem such as the Erdős–Rado theorem. Descriptive set theory is the study of subsets of the real line and, more generally, subsets

Cantor set (6,396 words) [view diff] no match in snippet view article find links to article

ISBN 978-1-4684-9396-2. Kechris, Alexander S. (1995). Classical Descriptive Set Theory. Graduate Texts in Mathematics. Vol. 156. Springer New York, NY

Semi-continuity (6,634 words) [view diff] no match in snippet view article find links to article

Kechris, A. S. (1995). Classical Descriptive Set Theory. Springer. Moschovakis, Y. N. (1980). Descriptive Set Theory. North-Holland. Friedman, H., & Stanley

Honest leftmost branch (95 words) [view diff] no match in snippet view article find links to article

Infinite, Perspectives in Mathematical Logic, Springer, Berlin, 1997. Yiannis N. Moschovakis, Descriptive set theory, North-Holland, Amsterdam, 1980. v t e

Better-quasi-ordering (1,149 words) [view diff] no match in snippet view article find links to article

Mansfield, Richard; Weitkamp, Galen (eds.). Recursive Aspects of Descriptive Set Theory. The Clarendon Press, Oxford University Press. pp. 124–38. ISBN 978-0-19-503602-2

Discrete mathematics (2,772 words) [view diff] no match in snippet view article find links to article

the scope of discrete mathematics. Indeed, contemporary work in descriptive set theory makes extensive use of traditional continuous mathematics. Combinatorics

List of Russian mathematicians (1,744 words) [view diff] no match in snippet view article find links to article

Lusin, developed Luzin's theorem, Luzin spaces and Luzin sets in descriptive set theory Aleksandr Lyapunov, founder of stability theory, author of the Lyapunov's

Reverse mathematics (4,782 words) [view diff] no match in snippet view article find links to article

lemma (Σ0 1 separation). It is equivalent to several statements of descriptive set theory whose proofs make use of strongly impredicative arguments; this

Axiom of choice (7,909 words) [view diff] no match in snippet view article find links to article

Additionally, by imposing definability conditions on sets (in the sense of descriptive set theory) one can often prove restricted versions of the axiom of choice

List of Russian scientists (9,622 words) [view diff] no match in snippet view article find links to article

Lusin, developed Luzin's theorem, Luzin spaces and Luzin sets in descriptive set theory Aleksandr Lyapunov, founder of stability theory, author of the Lyapunov's

Glossary of computer science (23,980 words) [view diff] no match in snippet view article find links to article

areas, recursion theory overlaps with proof theory and effective descriptive set theory. computation Any type of calculation that includes both arithmetical

List of Russian people (22,861 words) [view diff] no match in snippet view article find links to article

Lusin, developed Luzin's theorem, Luzin spaces and Luzin sets in descriptive set theory Aleksandr Lyapunov, founder of stability theory, author of the Lyapunov's