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Well-formed formula - Wikipedia, the free encyclopedia
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Those which produce a proposition when their symbols are interpreted must follow the rules given below, and they are called wffs(well-formed formulas) of the first order predicate logic. Rules for constructing Wffs;
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The set of well formed formulas is defined to be the least set Wff such that: ... The symbols and denote false and implication, respectively. ... We will make use of the following abbreviations:
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(42) If #p and #q are well-formed formulas then (#p and #q) is a well-formed formula. (43) If #p and #q are well-formed formulas then (#p or #q) is a well-formed formula. (44) If #p and #q are well-formed formulas then (#p => #q) is a well-formed formula.
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Well-formed Formulas and Mathematical Induction. Definition 1.1. A well-formed sequence is a finite sequence α1,...,αn of expressions such that each αi is ...
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In logic: A well-formed formula (wff) is a string of symbols from the alphabet of a (formal) language, that conforms to the grammar of the language. ... well formed I-language Blue In Green logical quantifier...
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In logic, one calls these sensible words well-formed formulas, or formulas or wff for short. ... well-formed formula, wff, infinite word ... empty word, well formed formula, subword, occur in, occurrence, -word...
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Formation of All Well-formed Formulas ... ; "construction of well-formed formulas" is owned by CWoo. ... Attachments: unique readability of well-formed formulas (Theorem) by CWoo;
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For a statement to be unambiguous and meaningful, it must be a well-formed formula (wff - usually pronounced "woof"). Just as in English, there are certain grammatical rules which a statement must meet if it is to make sense.
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Sentences of this language are called well formed formulas or WFF's. ... Sometimes formed by adding "non-" to the term, sometimes formed using prefixes, with longer terms you must reduce the scope of the term. ... well formed formula (WFF); A readable sentence of the language P. It is properly punctuated and unambiguous.
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