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A comprehensive table of symbols used in logic, with their names, readings, categories, explanations, and examples. Includes basic logic symbols, such as ⇒, ⇔, ¬, ∧, ∨, and ⊕, as well as symbols for propositional logic, Boolean algebra, and other fields.
Learn about the history, usage and meaning of the plus sign (+) and the minus sign (−) in mathematics and other fields. Find out how they are derived from Latin letters, how they are written in different languages and symbols, and how they are used as operators, functions and prefixes.
The ampersand (&) is a logogram representing the conjunction "and", derived from a ligature of the letters E and T in Latin. Learn about its etymology, evolution, variations, and usage in different languages and contexts.
The symbol was originally introduced in 1770 by Nicolas de Condorcet, who used it for a partial differential, and adopted for the partial derivative by Adrien-Marie Legendre in 1786. [3] It represents a specialized cursive type of the letter d , just as the integral sign originates as a specialized type of a long s (first used in print by ...
Learn how to use keyboard shortcuts to perform simple tasks in your AOL Mail, such as composing, sending, and deleting messages. Access all shortcuts by pressing shift +? on your keyboard.
The plus–minus sign or plus-or-minus sign, ±, is a symbol with multiple meanings. In mathematics , it generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction .
Miscellaneous Symbols is a Unicode block containing glyphs from various categories, including astrological signs. The web page shows the code chart and the definitions of the symbols, such as ♈ for Aries, ♉ for Taurus, and ♊ for Gemini.
Learn how to insert en dashes, em dashes, and minus signs on Wikipedia using various methods, including copy and paste. Find examples, templates, HTML codes, and keyboard shortcuts for different platforms.