Quick Answer: Which Of The Following Is The Best Example Of A Tautology?

What is a tautology statement?

A tautology is a logical statement in which the conclusion is equivalent to the premise.

More colloquially, it is formula in propositional calculus which is always true (Simpson 1992, p.

2015; D’Angelo and West 2000, p.

33; Bronshtein and Semendyayev 2004, p..

Why is tautology wrong?

The standard criticism of tautologies goes like this: because of the the fact that tautologies are necessarily true, they do not tell us anything new about the world. They cannot possibly be wrong; therefore, they do not add to our knowledge. They are redundancies, and they ultimately do not need to be stated.

Why is tautology used?

Essentially, a tautology expresses the same thing, idea, or saying repeatedly. There are many reasons people use tautology in both everyday discussion and poetry, research papers, prose, and song lyrics. At times it may be due to inept speakers or inadequacies in a language, or intentional ambiguities .

What is tautology and examples?

In grammatical terms, a tautology is when you use different words to repeat the same idea. For example, the phrase, “It was adequate enough,” is a tautology. The words adequate and enough are two words that convey the same meaning.

Is period of time a tautology?

“extensive periods of time” contained the tautology “periods of time”.

Is tautology a fallacy?

A tautology in math (and logic) is a compound statement (premise and conclusion) that always produces truth. No matter what the individual parts are, the result is a true statement; a tautology is always true. The opposite of a tautology is a contradiction or a fallacy, which is “always false”.

What is the paradox?

noun. a statement or proposition that seems self-contradictory or absurd but in reality expresses a possible truth. a self-contradictory and false proposition. any person, thing, or situation exhibiting an apparently contradictory nature.

What is an example of pleonasm?

Definition of Pleonasm A pleonasm is a redundant and tautological phrase or clause, such as “I saw it with my own eyes.” Seeing is, of course, an action done with the eyes, and therefore adding “with my own eyes” is redundant and unnecessary for context.

Is a tautology always true?

A tautology is a formula which is “always true” — that is, it is true for every assignment of truth values to its simple components. … The opposite of a tautology is a contradiction, a formula which is “always false”.

What is the difference between tautology and pleonasm?

Pleonasm has a sense of using an unnecessary overabundance of redundant words in one description. Tautology has a sense of saying the exact same in different words, using multiple words with the same meaning.

How can tautology be prevented?

In order to avoid using tautologies, pay careful attention to the logic of what you are writing….How to Avoid TautologyRe-read and spot tautologies.Delete them, or.Change them to phrases that actually add some information to the first.

How do you use tautology in a sentence?

Tautology in a Sentence 🔉The politician’s advertisement was simply tautology he restated several times within a thirty second period. … When the lawyer spoke to the jury, he used tautology to make the jurors aware of his point without being repetitive.More items…

How do you show a statement is a tautology?

If you are given any statement or argument, you can determine if it is a tautology by constructing a truth table for the statement and looking at the final column in the truth table. If all of the truth values in the final column are true, then the statement is a tautology.

What does tautological mean?

noun, plural tau·tol·o·gies. needless repetition of an idea, especially in words other than those of the immediate context, without imparting additional force or clearness, as in “widow woman.” an instance of such repetition. Logic. a compound propositional form all of whose instances are true, as “A or not A.”

What is it called when someone repeats what you say?

People with echolalia repeat noises and phrases that they hear. … In many cases, echolalia is an attempt to communicate, learn language, or practice language. Echolalia is different from Tourette syndrome, where a speaker may suddenly yell or say random things as part of their tic.