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propositional logic, Boolean algebra, first-order logic. ⊥ {\displaystyle \bot } denotes a proposition that is always false. The symbol ⊥ may also refer to perpendicular lines. The proposition. ⊥ ∧ P {\displaystyle \bot \wedge P} is always false since at least one of the two is unconditionally false. ∀.
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...
Mathematical operators and symbols are in multiple Unicode blocks. Some of these blocks are dedicated to, or primarily contain, mathematical characters while others are a mix of mathematical and non-mathematical characters. This article covers all Unicode characters with a derived property of "Math". [ 2][ 3]
Equals 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] In an equation, it is placed between two expressions that have the same value, or for which one studies the conditions under which ...
6. Red Heart ️. ICYMI, the red heart is defined as “the love heart,” according to Mejia. “The red heart is reserved for your closest friends, family, and your partner,” she explains ...
The rotated or turned question mark, ¿, and rotated exclamation mark, ¡, are punctuation marks used to begin interrogative and exclamatory sentences or clauses in Spanish and some languages which have cultural ties with Spain, such as Asturian and Waray languages. [ 1] The initial marks are mirrored at the end of the sentence or clause by the ...
The backslash is used in the TeX typesetting system and in RTF files to begin markup tags. In USFM, [ 22] the backslash is used to mark format features for editing Bible translations . In caret notation, ^\ represents the control character 0x1C, file separator. [ 23] This is entirely a coincidence and has nothing to do with its use in file paths.
In TeX, the turnstile symbol is obtained from the command \vdash. In Unicode, the turnstile symbol ( ⊢) is called right tack and is at code point U+22A2. [15] (. Code point U+22A6 is named assertion sign ( ⊦ ).) On a typewriter, a turnstile can be composed from a vertical bar (|) and a dash (–).