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Tautology (logic) - Wikipedia
A tautology is a formula whose negation is unsatisfiable. In other words, it cannot be false. Unsatisfiable statements, both through negation and affirmation, ...
en.wikipedia.org
en.wikipedia.org
TAUTOLOGY Definition & Meaning - Merriam-Webster
The meaning of TAUTOLOGY is needless repetition of an idea, statement, or word. How to use tautology in a sentence.
www.merriam-webster.com
www.merriam-webster.com
Tautology (language) - Wikipedia
A tautology is a statement that repeats an idea, using near-synonymous morphemes, words or phrases, effectively saying the same thing twice.
en.wikipedia.org
en.wikipedia.org
tautology
tautology (tɔːˈtɒlədʒɪ) [ad. late L. tautologia (c 350 in Mar. Plotin. Sacerd.), a. Gr. ταὐτολογία, f. ταὐτολόγος: see tautologous; in F. tautologie.] a. A repetition of the same statement. b. The repetition (esp. in the immediate context) of the same word or phrase, or of the same idea or statement...
Oxford English Dictionary
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¿What is a tautology? : r/logic - Reddit
It's a predicate that is true for every variable assignment. It's quite simple with an example, for example. A(x) OR Not(A(x)).
www.reddit.com
www.reddit.com
Tautology | Meaning, Definition & Examples - Scribbr
A tautology is the unnecessary repetition of an idea using different words (eg, “a free gift”). Tautologies are often considered to be a stylistic fault that ...
www.scribbr.com
www.scribbr.com
Tautology
Tautology may refer to:
Tautology (language), a redundant statement in literature and rhetoric
Tautology (logic), in formal logic, a statement that is true in every possible interpretation
Tautology (rule of inference), a rule of replacement for logical expressions
See also
Pleonasm
Redundancy (disambiguation
wikipedia.org
en.wikipedia.org
tautology - Wiktionary, the free dictionary
(uncountable) Redundant use of words, a pleonasm, an unnecessary and tedious repetition. (countable) An expression that features tautology.
en.wiktionary.org
en.wiktionary.org
Tautologies and Contradictions - YouTube
A tautology is always a tautology. 5:29 · Go to channel · 3 Ways to Show a Logical Equivalence | Ex: DeMorgan's Laws. Dr. Trefor Bazett•210K ...
www.youtube.com
www.youtube.com
Tautology in Math
A tautology is a compound statement which is true for every value of the individual statements. The word tautology is derived from a Greek word ...
byjus.com
byjus.com
Tautology in Math - GeeksforGeeks
Tautology in math is a compound statement that always returns a true value. The individual part of the tautology does not affect the result, which is always ...
www.geeksforgeeks.org
www.geeksforgeeks.org
grammaticality - Tautology: extensive periods of time - English ...
Tautology is: the saying of the same thing twice over in different words, generally considered to be a fault of style ( e.g. they arrived one after the other in succession ). ODO, via Google. It is important to understand that a period of time can be any length, and your premise that 'a period of time' repeats the meaning of extensive is incorrect.
english.stackexchange.com
tautology
tautology/tɔ:ˈtɔlədʒɪ; tɔ`tɑlədʒɪ/ n(a) [U] saying the same thing more than once in different ways withoutmaking one's meaning clearer or more forceful; needlessrepetition 无谓的重复; 赘述.(b) [C] instance of this 重复的话; 赘言. Cf 参看 pleonasm.
牛津英汉双解词典
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Tautology (logic)
A minimal tautology is a tautology that is not the instance of a shorter tautology. For example, because is a tautology of propositional logic, is a tautology in first order logic.
wikipedia.org
en.wikipedia.org
Is A∨¬A a tautology when there is a proof (by contradiction)? $A \lor \neg A$ is stated as a "tautology", but is it really a tautology? It can be proven by counterposition. And therefore it is not a tautology when it ...
$A\vee \neg A$ is a tautology in classical (i.e., Aristotelian) logic because you can prove that using the deduction rules of the classical proposition That is the meaning of tautology.
In non-classical logical systems, such as intuitionism or constructivism, $A \vee \neg A$ is not a tautology.
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