Question: What Is Wrong With Tautology?

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..

Is a tautology a valid argument?

A ‘tautological sentence’ is one that is always true regardless of the truth of ‘atomic sentences (ex. … However, it can be proven that tautological sentences as defined previously is always the ‘true conclusion’ of any argument regardless of truth of the premises. Therefore, tautology is always valid.

What is an example of a tautology?

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.

How do you get rid of tautology?

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.

What does tautology mean?

always and for ever1a : needless repetition of an idea, statement, or word Rhetorical repetition, tautology (‘always and for ever’), banal metaphor, and short paragraphs are part of the jargon.— Philip Howard. b : an instance of such repetition The phrase “a beginner who has just started” is a tautology.

Can a valid argument have inconsistent premises?

An argument with inconsistent premises is valid, regardless of what the conclusion is. If an argument has inconsistent premises, then it is impossible for all the premises to be true at the same time; hence it is impossible for all the premises to be true while the conclusion is false.

Why do I say things twice?

Palilalia (from the Greek πάλιν (pálin) meaning “again” and λαλιά (laliá) meaning “speech” or “to talk”), a complex tic, is a language disorder characterized by the involuntary repetition of syllables, words, or phrases.

How do I check my 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 is the opposite of a tautology?

The opposite of a tautology is presumably a contingent statement. … (2) Contingent statement – something true because it happens to be and which is not a Tautology.

What does tautology mean in logic?

In logic, a tautology (from Greek: ταυτολογία) is a formula or assertion that is true in every possible interpretation. An example is “x=y or x≠y”. A less abstract example is “The ball is all green, or the ball is not all green”.

Is a tautology bad?

A tautology is an expression or phrase that says the same thing twice, just in a different way. For this reason, a tautology is usually undesirable, as it can make you sound wordier than you need to be, and make you appear foolish.

What is the effect of tautology?

Tautology is when something is repeated, but it is said using different words. There are times when repetition is accidental-the writer or speaker did not mean to repeat the idea. However, there are times when tautology is done for effect. Repeating an idea in a different way can bring attention to the idea.

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”.

Is survival of the fittest a tautology?

Tautology. “Survival of the fittest” is sometimes claimed to be a tautology. … Furthermore, the expression does become a tautology if one uses the most widely accepted definition of “fitness” in modern biology, namely reproductive success itself (rather than any set of characters conducive to this reproductive success).

Is period of time a tautology?

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

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. an opinion or statement contrary to commonly accepted opinion.

What is a tautological argument?

A tautology is any argument where for any combination of truth values (true/false) assigned to the predicates within it, the logical flow of the argument is such that the conclusion will always turn out true.

What is the difference between tautology and redundancy?

Tautology is redundancies within phrases. Redundancy is any kind of repetition: phrases, sentences, paragraphs, entire books, it’s all the same; the scale isn’t important. A tautology refers to phrasing that repeats a single meaning in identical words: They followed each other one after the other in succession.