Axiom of choice
The Axiom of Choice (AC) is a fundamental principle in set theory and mathematics. It states that given a collection of non-empty sets, it is possible to select exactly one element from each set, even if there is no explicit rule for making the selection.
Axiom of constructibility
The Axiom of Constructibility, denoted as \( V = L \), is a principle in set theory that asserts that every set can be constructed in a specific hierarchy of sets called "L," which is the class of all constructible sets. This axiom is part of a broader framework known as the von Neumann universe, which organizes sets into levels based on the complexity of their construction.
Axiom schema of replacement
The Axiom Schema of Replacement is a fundamental concept in set theory, particularly in Zermelo-Fraenkel set theory (ZF), which forms the basis of much of modern mathematics. This axiom schema deals with the existence of sets that can be defined by a certain property or function.
Baumgartner's axiom
Baumgartner's axiom, often denoted as \( \mathsf{BA} \), is a principle in set theory proposed by the mathematician J. D. Baumgartner. It provides a framework for working with elementary embeddings and large cardinals. Specifically, Baumgartner's axiom asserts the existence of certain types of elementary embeddings, particularly those that are related to the structure of the set-theoretic universe in the presence of large cardinals.
Limoges CSP (Club Sportif des PTT Limoges) is a French professional basketball club based in Limoges, France. It is known for its history and success in French basketball and has participated in various international competitions, primarily in the ULEB Eurocup and the Basketball Champions League. The club has a significant following and is well-regarded in French basketball, often competing at a high level in both domestic leagues and international tournaments.
Positron emission
Positron emission, also known as positron decay or β⁺ decay, is a type of radioactive decay in which an unstable atomic nucleus emits a positron. A positron is the antimatter counterpart of an electron, possessing the same mass as an electron but with a positive charge. In positron emission, a proton in the nucleus of an atom is transformed into a neutron, accompanied by the release of a positron and a neutrino (an almost massless, neutral particle).
Tracks Ahead
"Tracks Ahead" is a television series that focuses on railroads and railroading in the United States. The program, which began airing in the early 1990s, showcases various aspects of rail transport, including trains, rail systems, historical train journeys, and the impact of railroads on communities. It often features interviews with railroad enthusiasts, operators, and historians, as well as discussions about the technology and operations of railroads.
Train Mountain Railroad
Train Mountain Railroad is a large-scale model railway located in Chiloquin, Oregon. It is known for being one of the longest miniature railroads in the world, boasting an extensive network of tracks that span over 37 miles. The railroad is designed for the use of ride-on scale model trains, often featuring live steam, diesel, and electric locomotives. Train Mountain serves as a venue for rail enthusiasts to bring their model trains and run them on the extensive layout.
Green–Tao theorem
The Green–Tao theorem is a significant result in additive combinatorics and number theory, established by mathematicians Ben Green and Terence Tao. It was proven in 2004 and states that the set of prime numbers contains arbitrarily long arithmetic progressions. More formally, the theorem asserts that for any integer \( k \), there exists a sequence of prime numbers that contains an arithmetic progression of length \( k \).
Halpern–Läuchli theorem
The Halpern–Läuchli theorem is a result in set theory and combinatorial set theory, particularly dealing with partition theorems. It provides insights into the behavior of certain sets under the action of partitioning and relates to properties of infinite sets. In basic terms, the theorem states that if we have a sufficiently large set \(X\) and we partition it into finitely many pieces, then at least one of these pieces will contain a large homogeneous subset.
Dana S. Richards
Dana S. Richards may refer to a specific individual, but without additional context, it is difficult to provide more detailed information. There are various people with that name, including professionals in different fields. If you mean a specific Dana S.
Latıf Imanov (scientist)
As of my last update in October 2023, there is no notable scientist widely recognized by the name Latıf Imanov in public records or scientific literature. It is possible that he may be a researcher in a specific field, but he does not appear to be a prominent figure in the broader scientific community or media available up until that time.
Corners theorem
Corners theorem, often referred to in the context of graph theory and combinatorial geometry, generally deals with conditions on the arrangement of points or vertices in a specific geometric or combinatorial setting. The theorem states that given a finite set of points in the plane, one can find a subset of these points such that certain geometric or combinatorial properties hold, often involving the vertices (or corners) of a configuration.
The Erdős–Dushnik–Miller theorem is a result in the field of graph theory, specifically in relation to the coloring of graphs. The theorem addresses the concept of coloring infinite graphs, particularly the problem of how many colors are needed to color an infinite graph such that no two adjacent vertices share the same color.
Erdős–Hajnal conjecture
The Erdős–Hajnal conjecture is a famous conjecture in combinatorial set theory and graph theory, proposed by mathematicians Paul Erdős and András Hajnal in the early 1970s. It addresses the structure of graphs that do not contain certain types of subgraphs, specifically focusing on the clique and independent set sizes.
Rado's theorem (Ramsey theory)
Rado's theorem is a significant result in the field of combinatorial mathematics, specifically in Ramsey theory. It deals with the ways in which one can partition or color the edges of a complete graph and relates to the existence of certain monochromatic subsets.
Ramsey cardinal
In set theory, a **Ramsey cardinal** is a type of large cardinal that possesses certain combinatorial properties.
Slicing the Truth
"Slicing the Truth" is a term that may refer to the idea of breaking down information, evidence, or arguments into smaller, more manageable parts to analyze and understand them better. This concept is often applied in various fields, such as philosophy, logic, and critical thinking, where the goal is to examine the components of a statement or belief to assess its validity, truthfulness, or implications.
The Mathematical Coloring Book
"The Mathematical Coloring Book" is a book written by the mathematician Alexis P. F. K. Myerson. It is designed to introduce readers to various concepts in mathematics through the engaging medium of coloring. The book features a variety of mathematical problems and concepts, encouraging readers to explore different areas of mathematics while participating in a fun and creative activity.
The Maximum-entropy random graph model is a statistical approach used to generate random graphs that capture specific characteristics or properties of observed graphs while maintaining maximum randomness under these constraints. The idea behind this model is to create a graph that fulfills certain defined constraints while maximizing the entropy of the graph's structure, thereby ensuring that it is as unbiased as possible with respect to the specified properties.