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Truth value


In logic and mathematics, a truth value, sometimes called a logical value, is a value indicating ... Indeed, you can prove that they have no third truth value, a result dating back to Glivenko in 19...

b) it has "truth value."


Only those sentences which have a meaning which can be said to be "true" or ... ( Note that having truth value is identified with being either true or false, not with ...

Statements, truth values and truth tables - CSUSB Math


Sep 2, 1996 ... A statement is an assertion that can be determined to be true or false. The truth value of a statement is T if it is true and F if it is false. For example, the statement ` `2 + 3 = 5'' has truth value T. Statements that involve one or ... Thus, the logical statement ``It is raining or the sun is shining ''...

Negation of a Statement - Math Goodies


It is possible that a closed sentence will have different truth values at different times. ... the variables, we can analyze the meaning of these open sentences.

Logic - Compound Sentences - Regents Exam Prep Center


The following are examples of compound sentences: "21 is divisible ... When attempting to determine the truth value of a compound sentence, ... The truth table tells you that the compound sentence will be false only when p and q are both true.

Logic -Biconditional IF AND ONLY IF - Regents Exam Prep Center


the truth values of both facts are exactly the same ... Definition: A triangle is isosceles if and only if the triangle has two congruent (equal) sides. The "if and only if" portion of the definition tells you that the statement is true when either sentence (or fact) is the hypothesis. This means that both of the statements be...

Is it possible for two tautologies to not be logically equivalent?


Sep 18, 2014 ... Unlike sentences, propositions don't contain words, so tautologies can't be ... I interpret "logically equivalent" to mean "matching in truth-value at every possible world. .... Otherwise, indeed, no sentence will be "always true".

quine: terms explained


They do not give meaningful information about the world. ... The truth-value of a synthetic statements cannot be figured out based solely on logic. ... Quine suggests that this is because sentences have meaning only in reference to a larger ...

1. Statements and Logical Operators


Contrary to what the name suggests, this has nothing to do with the subject most people ... The sentence "1 = 0" is also a statement, but its truth value is F. "It will ...

Logic & Proof


Obviously, if our formula is an atomic sentence, all we need to do is to see what truth-value it has been assigned in order to determine what its truth-value is on ...

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Truth Values (Stanford Encyclopedia of Philosophy)


Mar 30, 2010 ... Truth values as objects and referents of sentences .... Truth values evidently have something to do with a general concept of truth. Therefore it ...

logic - Determining the truth value of a statement - Mathematics ...


Sep 28, 2011 ... ... York has a large population. Now I don't get what does truth value means here. ... The statement is true, it has truth value "true." The possible truth ... The truth value of a sentence is "true" or "false". A sentence of the form "If A ...

Conjunction - Math Goodies


In Example 1, statement p represents the sentence, "Ann is on the softball team," and statement q represents the sentence, "Paul is ... The symbol is a logical connector which means "and. ... Now that we have defined a conjunction, we can apply it to Example 1. ... We can construct a truth table for the conjunction "...