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Upward arrows are often used to indicate an increase in a numerical value, and downward arrows indicate a decrease. In mathematical logic, a right-facing arrow indicates material conditional, and a left-right (bidirectional) arrow indicates if and only if, an upwards arrow indicates the NAND operator (negation of conjunction), an downwards arrow indicates the NOR operator (negation of ...
right fish tail Sometimes used for “relation”, also used for denoting various ad hoc relations (for example, for denoting “witnessing” in the context of Rosser's trick ). The fish hook is also used as strict implication by C.I.Lewis p {\displaystyle p} ⥽ q ≡ ( p → q ) {\displaystyle q\equiv \Box (p\rightarrow q)} .
"Center of gravity": crosshairs pointing to the center of a dashed circle "Do not roll": a box with a curved arrow above, and a cross-out line coming up from the box at an angle "Do not use hand hooks"
Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...
Miscellaneous Symbols and Arrows is a Unicode block containing arrows and geometric shapes with various fills, astrological symbols, technical symbols, intonation marks, and others. Block [ edit ]
Meaning Use sp: Spelling: Used to indicate misspelling spo: Spell out: Used to indicate that an abbreviation should be spelled out, such as in its first use stet: Let it stand: Indicates that proofreading marks should be ignored and the copy unchanged fl: Flush left: Align text flush with left margin fr: Flush right: Align text flush with right ...
Here are the official tips for Ohio drivers regarding flashing yellow arrows: 1. Pay attention! 2. Remember: The flashing yellow arrow will be used depending on time of day and traffic conditions.
Arrows is a Unicode block containing line, curve, and semicircle symbols terminating in barbs or arrows. Block. Arrows Official Unicode Consortium code chart ...