is a known fact

USAGE SUMMARY

"is a known fact" is correct and usable in written English.
This phrase is typically used to indicate that something is widely accepted as true, so it most often appears in factual writing. For example, "Global warming is a known fact, yet many people still deny its existence."

✓ Grammatically correct

Science

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

It is a known fact that surface diffusion is dependent on temperature and concentration.

Chemical Engineering Science

"It is a known fact that criminals don't pay their fare," Sergeant Silverstein said.

The New York Times

It is a known fact that students' perceptions of college attendance policies at times contradict those of the instructors.

Procedia - Social and Behavioral Sciences

It is a known fact that most thermoset resins are very sensitive to hot temperature, which hinders its ability to produce polymer-based products in a large scale.

Construction and Building Materials

It is a known fact that learning a material by hearing, watching and discussing altogether can increase the efficiency of learning up to ninety per cent.

Procedia - Social and Behavioral Sciences

It is a known fact that the composition of natural gas varies widely from source to source and from time to time even in the same source.

Journal of Natural Gas Science and Engineering

"It is a known fact that retirements were going up because of big classes that were hired 20 years ago," said Deputy Commissioner Thomas Antenen, a police spokesman.

The New York Times

"We don't have enough doctors in South Africa; that is a known fact," said Mr. Mngadi, who said his government has issued similar appeals to Britain.

The New York Times

"It is a known fact that Hong Kong art has not faired well commercially, especially in comparison to art from mainland China, although this is changing," she said.

The New York Times - Arts

It is a known fact that multiple wireless signals having the same carrier frequency cannot propagate over a single optical fiber at the same time, such as MIMO signals feeding multiple antennas in fiber wireless (FiWi) system.

Optics Communications

It is a known fact that the use of these walls inside RC frames composed of columns and beams improves the strength and stiffness of the structure under seismic loadings.

Engineering Structures

Expert writing Tips

Best practice

When using "is a known fact", ensure the statement truly represents established knowledge to avoid undermining your credibility. Provide evidence or context, especially in formal writing, even if it seems self-evident.

Common error

Avoid using "is a known fact" for statements that are subjective or lack empirical support. Overusing the phrase can make your writing sound condescending or undermine its persuasive power.

Linguistic Context

The phrase "is a known fact" functions as an introductory device to assert a statement as widely accepted knowledge. It prefaces a claim, suggesting it requires little to no further justification due to its presumed familiarity. Ludwig AI confirms its usability in written English.

Expression frequency: Very common

Frequent in

Science

38%

News & Media

38%

Formal & Business

6%

Less common in

Academia

3%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "is a known fact" serves as a common and grammatically correct way to introduce a statement widely accepted as true. Ludwig AI validates its broad applicability across diverse contexts, including science, news, and formal business settings. While frequently employed, it's essential to ensure that the asserted 'fact' genuinely represents established knowledge to maintain credibility. Alternatives such as "it is widely recognized that" or "it is common knowledge that" can add nuance depending on the intended emphasis. Overuse or misapplication of the phrase to subjective claims should be avoided to prevent undermining the writer's persuasiveness.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

it is widely recognized that

Emphasizes the broad acceptance of a particular idea or information, indicating a general consensus.

it is generally accepted that

Highlights the common agreement on a specific matter, suggesting a prevailing viewpoint.

it is a well-established fact that

Focuses on the proven and confirmed nature of the information, highlighting its credibility.

it is common knowledge that

Suggests that the information is widely known and understood by most people.

it is understood that

Implies a shared awareness or implicit agreement about a certain matter, indicating a collective understanding.

it's an accepted truth that

Highlights the veracity of a statement, portraying it as a principle or belief.

it is beyond dispute that

Indicates the lack of disagreement or contention surrounding a specific point, highlighting its certainty.

it goes without saying that

Emphasizes the obviousness or self-evidence of a particular statement, implying that it requires no further explanation.

it is a given that

Indicates an assumption that is taken for granted, which is being accepted as a basis for reasoning.

everyone knows that

Suggests a broad awareness or familiarity with a particular piece of information, implying that it's universally known.

FAQs

How can I use "is a known fact" in a sentence?

Use "is a known fact" to introduce a statement that is widely accepted as true. For example, "It "is a known fact" that exercise is beneficial for health".

What can I say instead of "is a known fact"?

You can use alternatives like "it is widely recognized that", "it is generally accepted that", or "it is common knowledge that" depending on the context.

Is it redundant to say "known fact"?

While "fact" implies something known, the phrase ""is a known fact"" emphasizes the widespread awareness or acceptance of the information, reinforcing its validity within the given context.

When is it appropriate to use "is a known fact" in writing?

Use "is a known fact" when you want to highlight that a statement is not just true, but also widely acknowledged and understood by your audience. It's particularly useful when setting the stage for further discussion or analysis.