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...
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 ...
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 ''...
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.
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
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...
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".
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
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 ...
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 ...