a fallacy

USAGE SUMMARY

The phrase "a fallacy" is correct and usable in written English.
It can be used when discussing a mistaken belief or a flaw in reasoning, often in the context of arguments or logic. Example: "The argument presented is based on a fallacy, which undermines its validity."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

This is a fallacy.

The New York Times

There's a fallacy there.

The New York Times

That was a fallacy.

The New York Times

That's kind of a fallacy.

The New York Times

That's a fallacy.

The Guardian

"It's a fallacy.

The Guardian - Arts

It's also a fallacy.

The New York Times

"I think that's a fallacy".

The Guardian

This too is a fallacy.

The Guardian - Opinion

It's founded on a fallacy.

The New Yorker

No — that's a fallacy of composition.

The New York Times

Expert writing Tips

Best practice

Use "a fallacy" when you want to identify a specific flaw in reasoning or a mistaken belief in an argument. Make sure the context clearly explains why the idea is incorrect.

Common error

Don't use "a fallacy" simply to state something is untrue. A fallacy is a flaw in the reasoning process itself, not just an incorrect statement. Focus on the reasoning, not just the conclusion.

Linguistic Context

The primary grammatical function of "a fallacy" is to act as a noun phrase, typically serving as a subject complement or object in a sentence. Ludwig provides examples where it identifies a flawed argument or mistaken belief. The Ludwig AI confirms that the phrase is grammatically correct and widely used.

Expression frequency: Very common

Frequent in

News & Media

65%

Science

20%

Encyclopedias

5%

Less common in

Formal & Business

3%

Reference

2%

Wiki

1%

Ludwig's WRAP-UP

In summary, "a fallacy" is a noun phrase used to identify a flaw in reasoning or a mistaken belief. Ludwig confirms that the phrase is grammatically correct and common in various contexts, including news, science, and general discussions. It's important to use it when pinpointing a specific error in logic, rather than just stating something is untrue. Related phrases include "a misconception" and "an error in reasoning". According to Ludwig, the frequency of usage is very high, solidifying its place as a useful term for critical thinking and effective communication.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

a misconception

Emphasizes the incorrect understanding or interpretation of something.

a mistaken belief

Focuses on the incorrectness of the belief itself.

an error in reasoning

Highlights the flaw in the logical process.

a flawed argument

Points out the defect in the structure or logic of an argument.

a deceptive notion

Suggests that the idea is misleading or intentionally deceptive.

an illusion

Implies a false perception of reality.

a deluded idea

Highlights that the idea is unrealistic and based on false assumptions.

a false premise

Focuses on the incorrect foundation upon which an argument or belief is built.

a logical trap

Emphasizes how the fallacy can ensnare or mislead someone's thinking.

a specious argument

Highlights the superficially plausible but ultimately false nature of the argument.

FAQs

How can I use "a fallacy" in a sentence?

You can use "a fallacy" to point out a flaw in reasoning. For example, "The argument that more guns make us safer is "a fallacy" because it ignores the correlation between gun ownership and increased violence".

What are some alternatives to saying "a fallacy"?

Depending on the context, you could use alternatives like "a misconception", "a mistaken belief", or "an error in reasoning".

What's the difference between "a fallacy" and "a falsehood"?

"A falsehood" is simply an untrue statement, while ""a fallacy"" is an error in reasoning or argumentation that makes an argument invalid.

Is it correct to say 'That's a fallacy'?

Yes, "That's "a fallacy"" is a perfectly correct and common way to point out a flawed argument or mistaken belief. Ludwig confirms this with numerous examples from reliable sources.