◊
See also: ⋄ [U+22C4 DIAMOND OPERATOR], ◇ [U+25C7 WHITE DIAMOND], and ♢ [U+2662 WHITE DIAMOND SUIT]
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Translingual
Etymology
The use of this notation in modal logic was developed by C.I. Lewis.
Symbol
◊
- (logic) possibility, possible, possibly
- (set theory) the diamond principle
- (calculator) subtotal
- (traffic) high-occupancy vehicle lane, bus lane
Synonyms
- (modal operator denoting possibility): M
See also
- □