well-formed formula

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Well-formed formula
For the New Zealand government policy, see Working for Families.In logic, WFF (pronounced "wiff") is an abbreviation for well-formed formula. Given a formal grammar, a WFF is any string that is generated by that grammar. To say that a string is a WFF with respect to a given formal grammar is equivalent to saying that belongs to the language generated by , i.e. .
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Formule bien formée
En logique mathématique, le sigle anglais WFF (prononcé "wiff") est une abréviation pour well-formed formula, c.à.d en Français formule bien formée. Soit une grammaire formelle, un WFF est toute chaîne qui est générée par cette grammaire.
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Formula ben formata
Nella logica matematica si chiama formula ben formata o - brevemente - fbf di un sistema formale una stringa di simboli che, intuitivamente, rappresenti un'espressione sintatticamente corretta e che viene definita mediante le regole della grammatica del sistema formale stesso.Definizioni specifiche di formule ben formata vengono date nell'ambito della logica proposizionale e dei linguaggi del primo ordine.
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合式公式
逻辑中,WFF是合式公式(well-formed formula)的缩写。给定一个形式文法,WFF 是这个文法生成的任何字符串。例如,在命题演算中符号序列 是一个 WFF,因为它在文法上正确。符号序列 不是 WFF,因为它不符合命题演算的文法。在形式逻辑中,证明是有特定性质的 WFF 序列,而序列中最终的 WFF 就是要证明的。
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well-formed formula: WFF
goed-gestructureerde formule

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