Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
as attested by a
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as attested by a" is correct and usable in written English.
It can be used when referencing evidence or support for a statement or claim, often followed by a source or authority. Example: "The findings of the study are significant, as attested by a leading expert in the field."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Wiki
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
16 human-written examples
Such images can be both seductive and unnerving, as attested by a young woman who took in the shop's décor on a recent Saturday.
News & Media
The Global Centre was not built for the mass market, as attested by a display inviting shoppers to invest in luxury resort property in Thailand.
News & Media
Since sensor's responses are still well defined at the ppm level (and may be even at the subppm level) as attested by a SNR around 10, an application such smart packaging could be envisaged.
Science
It had been a major colonial seaport in its own right, as attested by a number of its buildings: the lovely Hunter House, which contains fine Goddard furniture; Colony House (1739), and the Touro Synagogue (1759-1763).
News & Media
Discriminant validity was also satisfactory, as attested by a lower but still significant partial correlation between total haptic scores and the raw score on the verbal WISC (rp = 0.43, n = 62).
Sediment cores collected within this section showed all an increase in ammonium concentrations with depth in pore waters as a consequence of the landfill leachate dispersion, as attested by a simultaneous increase in chloride concentrations.
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
Wall painting had already reached a high degree of perfection in the Central Subregion, as attested by an extremely fine mural at Uaxactún depicting a palace scene in which two important lords confer with each other.
Encyclopedias
Bishop Thomas was at Avignon again in the mid-1390s, attestedted by record of a series of mundane transactions conducted by him there.
Wiki
The Hohokam (whose name is a Pima Indian word meaning "Those Who Have Gone") practiced farming, as attested by remains of an irrigation system.
Encyclopedias
For example, a prolonged humid phase, as attested by reddish brown soil with a deep profile, appears to have commenced some 140,000 years ago and lasted until about 25,000 years ago, roughly the extent of the Middle Paleolithic Period.
Encyclopedias
(a) Iran's nuclear program is not a peaceful technological pursuit, as attested by both the International Atomic Energy Agency (IAEA and National Intelligence Estimatee (NIE), but a pursuit of nuclear weapons.
News & Media
Expert writing Tips
Best practice
When using "as attested by a", ensure that the source you are referencing is credible and relevant to your claim. This strengthens the validity of your statement.
Common error
While "as attested by a" is a valid phrase, avoid overusing it, as it can make your writing sound repetitive. Vary your language by using synonyms like "as evidenced by a" or "as demonstrated by a".
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as attested by a" serves as a transitional phrase that introduces evidence or support for a statement. It connects a claim to the source of its validation, similar to other phrases like "as demonstrated by" or "as evidenced by". As Ludwig AI confirms, it is a correct and usable expression.
Frequent in
Science
50%
News & Media
32%
Encyclopedias
11%
Less common in
Wiki
7%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "as attested by a" is a useful phrase to indicate that a statement is supported by evidence or testimony. Ludwig AI confirms that it is grammatically correct. It's commonly used in academic writing, news reporting, and other formal contexts where establishing credibility is crucial. While it's a valid and helpful phrase, remember to vary your writing by using synonyms to avoid repetition. The phrase appears frequently in scientific and news sources. Using credible and relevant sources when employing this phrase strengthens your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
as evidenced by a
Focuses more directly on the evidence presented, offering a slightly more direct and less formal tone.
as demonstrated by a
Emphasizes the act of showing or proving something through the evidence.
as shown by a
More concise and informal way to introduce evidence.
as indicated by a
Highlights that the evidence serves as a sign or signal pointing to a particular conclusion.
as confirmed by a
Stresses the corroboration or validation of a fact or statement through the evidence.
as revealed by a
Suggests that the evidence uncovers or makes something known that was previously hidden.
as supported by a
Highlights the role of the evidence in providing backing or justification for a claim.
as substantiated by a
Emphasizes the act of providing solid proof or validation through the evidence.
as can be seen in a
Directs attention to a clear and observable demonstration of the evidence.
a fact that is borne out by a
More emphatic and formal way to assert that the evidence confirms the truth of something.
FAQs
How can I use "as attested by a" in a sentence?
Use "as attested by a" to introduce evidence or support for a claim. For example, "The effectiveness of the treatment was clear, as attested by a significant reduction in symptoms."
What are some alternatives to "as attested by a"?
You can use alternatives like "as evidenced by a", "as demonstrated by a", or "as shown by a" to vary your writing.
Is "as attested by a" formal or informal?
"As attested by a" leans toward a more formal tone, suitable for academic, professional, or journalistic contexts. For more informal writing, consider using phrases like "as shown by a".
What makes a good source when using "as attested by a"?
A good source is one that is credible, relevant, and authoritative in its field. Ensure the source provides reliable evidence to support your claim.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested