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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. ∀.
Specials. Specials is a short Unicode block of characters allocated at the very end of the Basic Multilingual Plane, at U+FFF0–FFFF, containing these code points: U+FFFC OBJECT REPLACEMENT CHARACTER, placeholder in the text for another unspecified object, for example in a compound document. U+FFFE <noncharacter-FFFE> not a character.
Section sign. The section sign (§) is a typographical character for referencing individually numbered sections of a document; it is frequently used when citing sections of a legal code. [1] It is also known as the section symbol, section mark, double-s, or silcrow. [2][3] In other languages it may be called the "paragraph symbol" (for example ...
On a computer running the Microsoft Windows operating system, many special characters that have decimal equivalent codepoint numbers below 256 can be typed in by using the keyboard's Alt + decimal equivalent code numbers keys. For example, the character é (Small e with acute accent, HTML entity code é) can be obtained by pressing Alt + 130.
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]
Unicode input. Unicode input is method to add a specific Unicode character to a computer file; it is a common way to input characters not directly supported by a physical keyboard. Characters can be entered either by selecting them from a display, by typing a certain sequence of keys on a physical keyboard, or by drawing the symbol by hand on ...
The second typeface is Myriad Pro; the superscript is about 60% of the original characters, raised by about 44% above the baseline.) A subscript or superscript is a character (such as a number or letter) that is set slightly below or above the normal line of type, respectively. It is usually smaller than the rest of the text.
Without proper rendering support, you may see question marks, boxes, or other symbols. Mathematical Alphanumeric Symbols is a Unicode block comprising styled forms of Latin and Greek letters and decimal digits that enable mathematicians to denote different notions with different letter styles. The letters in various fonts often have specific ...