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Infinity symbol. The infinity symbol ( ∞) is a mathematical symbol representing the concept of infinity. This symbol is also called a lemniscate, [ 1] after the lemniscate curves of a similar shape studied in algebraic geometry, [ 2] or "lazy eight", in the terminology of livestock branding. [ 3]
In this usage, infinity is a mathematical concept, and infinite mathematical objects can be studied, manipulated, and used just like any other mathematical object. The mathematical concept of infinity refines and extends the old philosophical concept, in particular by introducing infinitely many different sizes of infinite sets.
Absolute infinite. The absolute infinite ( symbol: Ω ), in context often called " absolute ", is an extension of the idea of infinity proposed by mathematician Georg Cantor. It can be thought of as a number that is bigger than any other conceivable or inconceivable quantity, either finite or transfinite. Cantor linked the absolute infinite ...
Aleph-one. ℵ 1 is, by definition, the cardinality of the set of all countable ordinal numbers. This set is denoted by ω 1 (or sometimes Ω). The set ω 1 is itself an ordinal number larger than all countable ones, so it is an uncountable set. Therefore, ℵ 1 is distinct from ℵ 0. The definition of ℵ 1 implies (in ZF, Zermelo–Fraenkel ...
Chess annotation symbols. When annotating chess games, commentators frequently use widely recognized annotation symbols. Question marks and exclamation points that denote a move as bad or good are ubiquitous in chess literature. [ 1] Some publications intended for an international audience, such as the Chess Informant, have a wide range of ...
Lemniscate. In algebraic geometry, a lemniscate ( / lɛmˈnɪskɪt / or / ˈlɛmnɪsˌkeɪt, - kɪt /) [ 1] is any of several figure-eight or ∞ -shaped curves. [ 2][ 3] The word comes from the Latin lemniscatus, meaning "decorated with ribbons", [ 4] from the Greek λημνίσκος ( lēmnískos ), meaning "ribbon", [ 3][ 5][ 6][ 7] or ...
For most symbols, the entry name is the corresponding Unicode symbol. So, for searching the entry of a symbol, it suffices to type or copy the Unicode symbol into the search textbox. Similarly, when possible, the entry name of a symbol is also an anchor, which allows linking easily from another Wikipedia article. When an entry name contains ...
Unicode has subscripted and superscripted versions of a number of characters including a full set of Arabic numerals. [ 1] These characters allow any polynomial, chemical and certain other equations to be represented in plain text without using any form of markup like HTML or TeX .