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Vel (symbol) : ウィキペディア英語版 | Vel (symbol) Vel (∨) (''vel'' is "or" in Latin) or descending wedge is a symbol used to represent: * Logical disjunction in propositional logic * Join in lattice theory It was used by Russell and Whitehead in ''Principia Mathematica'', where they called it the ''Logical Sum'' or ''Disjunctive Function''. In Unicode the symbol is encoded and by \vee and \lor in TeX. The opposite symbol (∧) is called a wedge. ==See also==
*Wedge (symbol) *List of mathematical symbols *List of logic symbols
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Vel (symbol)」の詳細全文を読む
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