• The simple theorems in the algebra of sets are some of the elementary properties of the algebra of union (infix operator: ∪), intersection (infix operator:...
    5 KB (545 words) - 19:21, 25 July 2023
  • Ur-element Singleton (mathematics) Simple theorems in the algebra of sets Algebra of sets Power set Empty set Non-empty set Empty function Universe (mathematics)...
    14 KB (1,012 words) - 00:08, 16 November 2024
  • In mathematics, specifically abstract algebra, the isomorphism theorems (also known as Noether's isomorphism theorems) are theorems that describe the...
    25 KB (3,601 words) - 16:37, 7 March 2025
  • σ-algebra containing all open sets (or, equivalently, all closed sets). Borel sets are important in measure theory, since any measure defined on the open...
    13 KB (1,792 words) - 19:28, 11 March 2025
  • Thumbnail for Reductive group
    showed that the classification of reductive groups is the same over any algebraically closed field. In particular, the simple algebraic groups are classified...
    56 KB (8,018 words) - 09:30, 15 April 2025
  • ring. Noncommutative algebra is the part of ring theory devoted to study of properties of the noncommutative rings, including the properties that apply...
    20 KB (2,804 words) - 01:41, 1 November 2023
  • Thumbnail for Semisimple Lie algebra
    In mathematics, a Lie algebra is semisimple if it is a direct sum of simple Lie algebras. (A simple Lie algebra is a non-abelian Lie algebra without any...
    41 KB (5,743 words) - 05:34, 4 March 2025
  • Thumbnail for Sylow theorems
    In mathematics, specifically in the field of finite group theory, the Sylow theorems are a collection of theorems named after the Norwegian mathematician...
    33 KB (4,453 words) - 11:08, 4 March 2025
  • In ring theory and related areas of mathematics a central simple algebra (CSA) over a field K is a finite-dimensional associative K-algebra A that is...
    8 KB (1,140 words) - 04:54, 10 December 2024
  • In mathematics and mathematical logic, Boolean algebra is a branch of algebra. It differs from elementary algebra in two ways. First, the values of the...
    75 KB (9,571 words) - 01:33, 11 June 2025
  • false in intuitionistic logic Recursion Relational algebra (to do) Solvable group Square root of 2 Tetris Algebra of sets idempotent laws for set union...
    6 KB (593 words) - 20:11, 5 June 2023
  • of notable theorems. Lists of theorems and similar statements include: List of algebras List of algorithms List of axioms List of conjectures List of...
    78 KB (6,289 words) - 12:34, 6 June 2025
  • The fundamental theorem of algebra, also called d'Alembert's theorem or the d'Alembert–Gauss theorem, states that every non-constant single-variable polynomial...
    51 KB (7,637 words) - 03:42, 7 June 2025
  • In mathematics, the Boolean prime ideal theorem states that ideals in a Boolean algebra can be extended to prime ideals. A variation of this statement...
    15 KB (2,256 words) - 13:54, 6 April 2025
  • In mathematical analysis and in probability theory, a σ-algebra ("sigma algebra") is part of the formalism for defining sets that can be measured. In...
    31 KB (5,527 words) - 23:21, 6 June 2025
  • Mathematical set of all subsets of a set Simple theorems in the algebra of sets Naive set theory – Informal set theories Multiset – Mathematical set with repetitions...
    10 KB (1,824 words) - 18:20, 19 February 2025
  • Thumbnail for Lie algebra representation
    In the mathematical field of representation theory, a Lie algebra representation or representation of a Lie algebra is a way of writing a Lie algebra...
    28 KB (4,312 words) - 17:24, 28 November 2024
  • In mathematics, Stone's representation theorem for Boolean algebras states that every Boolean algebra is isomorphic to a certain field of sets. The theorem...
    6 KB (727 words) - 09:58, 29 April 2025
  • In mathematics, specifically in functional analysis, a C∗-algebra (pronounced "C-star") is a Banach algebra together with an involution satisfying the...
    20 KB (2,830 words) - 09:30, 14 January 2025
  • Thumbnail for Abstract algebra
    In mathematics, more specifically algebra, abstract algebra or modern algebra is the study of algebraic structures, which are sets with specific operations...
    33 KB (4,336 words) - 00:14, 16 June 2025
  • In abstract algebra, a Jordan algebra is a nonassociative algebra over a field whose multiplication satisfies the following axioms: x y = y x {\displaystyle...
    19 KB (2,495 words) - 22:33, 8 March 2025
  • Thumbnail for Lie algebra
    allows one to study the structure and classification of Lie groups in terms of Lie algebras, which are simpler objects of linear algebra. In more detail: for...
    61 KB (10,495 words) - 08:47, 5 June 2025
  • of monoids, rings, and lattices. Before universal algebra came along, many theorems (most notably the isomorphism theorems) were proved separately in...
    25 KB (3,021 words) - 20:25, 19 June 2025
  • In linear algebra and functional analysis, a spectral theorem is a result about when a linear operator or matrix can be diagonalized (that is, represented...
    25 KB (3,852 words) - 23:00, 22 April 2025
  • define sets using polynomial equations and not inequalities then we define algebraic sets rather than semialgebraic sets. For these sets the theorem fails...
    6 KB (754 words) - 04:48, 19 May 2025
  • In mathematics, the Seifert–Van Kampen theorem of algebraic topology (named after Herbert Seifert and Egbert van Kampen), sometimes just called Van Kampen's...
    21 KB (3,373 words) - 16:41, 4 May 2025
  • of potential events and the underlying mechanics of complex systems. Probability and randomness. (Related topics: set theory, simple theorems in the algebra...
    8 KB (556 words) - 00:09, 23 June 2024
  • In abstract algebra, a branch of mathematics, a simple ring is a non-zero ring that has no two-sided ideal besides the zero ideal and itself. In particular...
    6 KB (852 words) - 17:25, 5 June 2025
  • Thumbnail for Finite group
    In abstract algebra, a finite group is a group whose underlying set is finite. Finite groups often arise when considering symmetry of mathematical or...
    15 KB (1,831 words) - 16:54, 2 February 2025
  • In mathematics, the spectrum of a C*-algebra or dual of a C*-algebra A, denoted Â, is the set of unitary equivalence classes of irreducible *-representations...
    12 KB (1,753 words) - 20:34, 24 January 2024