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Encyclopedia: Well-formed formula
In mathematical logic, a well-formed formula (often abbreviated WFF, pronounced "wiff") is a symbol or string of symbols (a formula) that is generated by the formal grammar of a formal language. To sa...
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Well-Formed Formula for First Order Predicate Logic ; --- Syntax Rules wff (well formed formula) 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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Definition L.W.11 - well-formed formula (41) If #p is a predicate then #p is a (48) If #f is a well-formed formula and #a is a free variable in #f then...
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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.
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German term for truth. One of the original members of the Vienna Circle gathering of logical positivists, Waismann defended a conventionalist logic in Einführung in das mathematische Denken (An Introduction to Mathematical Thinking) (1936). Sprachspiele und Vagheit der Sprache Recommended Reading: Friedrich Waismann,
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Encyclopædia Britannica. well formed formula. CREATE MY well-formed . Aspects of the topic "well-formed formula" are discussed in the following places...
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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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Ways of Forming a Single Well-formed Formula Formation of All Well-formed Formulas A well-formed formula, or wff for short, is then a special kind of finite string, sometimes called a term, formed in a specific, pre-determined manner:
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Remember, there are three possible outcomes: A Wff is either a tautology (always true), a contradiction (always false), or satisfiable (sometimes true, sometimes false). What kind of Wff leads to the greatest expansion when it is converted into CNF? Some advertising relies on the following kind of "reasoning":
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well-formed formula At its most general a formula may be thought of in logical theory as any string of symbols from the lexicon of the theory Philosophy Dictionary: well-formed formula...
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