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In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.
Bookshelf Symbol 7 is a typeface which was packaged with Microsoft Office 2003.It is a pi font encoding several less common variants of Roman letters (including a small subset of those used in the International Phonetic Alphabet), a few musical symbols and mathematical symbols, a few additional symbols (including torii), and a few rare or obscure kanji.
Miscellaneous Technical is a Unicode block ranging from U+2300 to U+23FF. It contains various common symbols which are related to and used in the various technical, programming language, and academic professions.
It is often replaced by the word "or". 2. In lattice theory, denotes the join or least upper bound operation. 3. In topology, denotes the wedge sum of two pointed spaces. ∧ 1. Denotes the logical and, and is read as "and". If E and F are logical predicates, is true if E and F are both true.
The word symbol derives from the late Middle French masculine noun symbole, which appeared around 1380 in a theological sense signifying a formula used in the Roman Catholic Church as a sort of synonym for 'the credo'; by extension in the early Renaissance it came to mean 'a maxim' or 'the external sign of a sacrament'; these meanings were lost in secular contexts.
≅, a symbol used in approximation; The eight trigrams of the Bagua: ☰, ☱, ☲, ☳, ☴, ☵, ☶, ☷; Ξ, capital letter Xi of the Greek alphabet; 三 ...
The numero sign or numero symbol, № (also represented as Nº, No̱, №, No., or no.), [1] [2] is a typographic abbreviation of the word number(s) indicating ordinal numeration, especially in names and titles. For example, using the numero sign, the written long-form of the address "Number 29 Acacia Road" is shortened to "№ 29 Acacia Rd ...
A well-known equality featuring the equal sign. The equals sign (British English) or equal sign (American English), also known as the equality sign, is the mathematical symbol =, which is used to indicate equality in some well-defined sense. [1]