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An arrow is a graphical symbol, such as ← or →, or a pictogram, used to point or indicate direction. In its simplest form, an arrow is a triangle, chevron, or concave kite, usually affixed to a line segment or rectangle, [ 1] and in more complex forms a representation of an actual arrow (e.g. U+27B5). The direction indicated by an arrow is ...
Notation. ↑, a mathematical symbol for "undefined". ↑, a mathematical symbol for "approaching from below". ↑, a notation of Knuth's up-arrow notation for very large integers. ↑, a mathematical game theory position Up. ↑ or Sheffer stroke, the logical connective "not both" or NAND. ↑, the APL function 'take'. "Increased" (and similar ...
This article contains Unicode arrow characters. Without proper rendering support, you may see question marks, boxes, or other symbols instead of arrows. Arrows is a Unicode block containing line, curve, and semicircle symbols terminating in barbs or arrows .
To use the shortcut, turn on NumLock / Fn, and make sure the cursor is flashing where you want the symbol to go. Press and hold the alt key, and then press numbers. You don’t need to press the ...
Glossary of mathematical symbols. 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 ...
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. ∀.
The Miscellaneous Symbols and Arrows block contains seven emoji: U+2B05–U+2B07, U+2B1B–U+2B1C, U+2B50 and U+2B55. [3] [4]The block has fourteen standardized variants defined to specify emoji-style (U+FE0F VS16) or text presentation (U+FE0E VS15) for the seven emoji.
Sortable table Abbreviation Meaning Δ: diagnosis; change: ΔΔ: differential diagnosis (the list of possible diagnoses, and the effort to narrow that list) +ve: positive (as in the result of a test)