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An upside-down interrobang (combining ¿ and ¡, Unicode character: ⸘), suitable for starting phrases in Spanish, Galician and Asturian—which use inverted question and exclamation marks—is called an "inverted interrobang" or a gnaborretni (interrobang spelled backwards), but the latter is rarely used. [17]
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. ∀.
Alt code. On personal computers with numeric keypads that use Microsoft operating systems, such as Windows, many characters that do not have a dedicated key combination on the keyboard may nevertheless be entered using the Alt code (the Alt numpad input method). This is done by pressing and holding the Alt key, then typing a number on the ...
Miscellaneous Symbols is a Unicode block (U+2600–U+26FF) containing glyphs representing concepts from a variety of categories: astrological, astronomical, chess, dice, musical notation, political symbols, recycling, religious symbols, trigrams, warning signs, and weather, among others.
The Cross of Saint Peter, also known as the Petrine Cross, is an inverted Latin cross traditionally used as a Christian symbol, but in recent times, it has also been used as an anti-Christian and Satanic symbol. In Christianity, it is associated with the martyrdom of Saint Peter. The symbol originates from the Catholic tradition that when ...
A dagger, obelisk, or obelus†is a typographical markthat usually indicates a footnoteif an asteriskhas already been used.[1] The symbol is also used to indicate death (of people) or extinction (of species or languages).[2] It is one of the modern descendants of the obelus, a mark used historically by scholars as a critical or highlighting ...
The glyph of the up tack appears as an upside-down tee symbol, and as such is sometimes called eet (the word "tee" in reverse). [citation needed] Tee plays a complementary or dual role in many of these theories. The similar-looking perpendicular symbol ( , \perp in LaTeX, U+27C2 in Unicode) is a binary relation symbol used to represent:
The upside-down(also inverted, turnedor rotated) question mark¿and exclamation mark¡are punctuationmarks used to begin interrogative and exclamatory sentences or clauses in Spanishand some languages that have cultural ties with Spain, such as Asturianand Waray.[1] The initial marks are mirrored at the end of the sentence or clause by the ...