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
is asserted by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is asserted by" is correct and usable in written English.
It can be used when indicating that a statement or claim is made by a specific person or source. Example: "The theory is asserted by several leading scientists in the field."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Wiki
Alternative expressions(20)
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
I took Hayes's point further than he might be willing to take it, and suggested that because trust is common to both enterprises, the distinction between them, at least as it is asserted by Pinker and Dawkins, cannot be maintained.
News & Media
Here again is the 1915 "Declaration": "It is … not the absolute freedom of utterance of the individual scholar, but the absolute freedom of thought, of inquiry, of discussion and teaching of the academic profession that is asserted by this declaration of principles".
News & Media
Abelard calls statements propositions (propositio) and what is asserted by a statement its dictum.
Science
This seemingly commonsensical point is asserted by Socrates at the start (530c1 5), and happily accepted by Ion.
Science
We begin by presenting an integral formula involving the functions (31) and (32), which is asserted by the following lemma.
Accordingly, metadata that is asserted by our software systems using DCMI Metadata Terms can be easily integrated with that of other software systems.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
Bopp demonstrated in 1839 that the Celtic languages were Indo-European, as had been asserted by Jones.
Encyclopedias
"It's your group identity that's being asserted by insisting on the primacy of the language," Gopnik says.
News & Media
The Sars outbreak of 2003 was asserted by one expert as having "a 25% chance of killing tens of millions".
News & Media
The Transvaal government made further concessions, but by this time Milner had determined that British supremacy in Southern Africa should be asserted by force; hence, he remained intransigent.
Encyclopedias
This perverse connection has been asserted by others, like Mr. Leiser: "The death of the Jew Süss in Veit Harlan's film is uncannily prophetic.
News & Media
Expert writing Tips
Best practice
When using "is asserted by", ensure that the source you are citing is credible or relevant to the topic, as the strength of the assertion depends on the source's authority.
Common error
Avoid using "is asserted by" without providing supporting evidence or context. While it attributes a claim, it does not validate it. Always ensure the reader understands the basis for the assertion.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is asserted by" functions as a passive construction used to attribute a statement, claim, or theory to a specific source. It highlights who is making the assertion, lending credibility or indicating responsibility for the claim. As Ludwig AI confirms, this is a grammatically sound construction.
Frequent in
Science
52%
News & Media
29%
Encyclopedias
9%
Less common in
Wiki
6%
Formal & Business
4%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "is asserted by" is a grammatically correct and frequently used passive construction that serves to attribute a statement or claim to a particular source. As confirmed by Ludwig AI, its usage is generally appropriate in neutral to formal registers, particularly within scientific, academic, and news-related contexts. When employing this phrase, it's crucial to provide context and ensure the credibility of the cited source to enhance the validity and clarity of the information being presented. Be mindful of the potential for overuse and consider alternative phrases like "is claimed by" or "is stated by" to avoid repetition and maintain a balanced tone.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is claimed by
Replaces "asserted" with "claimed", suggesting a statement without necessarily implying proof or strong conviction.
is stated by
Uses "stated" to indicate a formal or clear expression of something.
is maintained by
Emphasizes the persistence or upholding of a statement or position.
is alleged by
Indicates that a statement is made without proof and is potentially doubtful.
is held by
Focuses on the belief or opinion being possessed by someone.
is posited by
Introduces a statement that is presented as a basis for reasoning or discussion.
is put forward by
Highlights the act of proposing or suggesting an idea or argument.
is suggested by
Indicates a subtle or indirect statement.
is the position of
Clearly identifies a statement as an official stance or viewpoint.
is the contention of
Emphasizes that the statement is a point of argument or debate.
FAQs
How can I use "is asserted by" in a sentence?
Use "is asserted by" to attribute a statement or claim to a specific source. For example, "This theory "is asserted by" Dr. Smith in his recent publication".
What can I say instead of "is asserted by"?
You can use alternatives like "is claimed by", "is stated by", or "is maintained by" depending on the nuance you want to convey.
Is it better to use "is asserted by" or "is claimed by"?
"Is asserted by" suggests a firm statement, while "is claimed by" implies a statement without necessarily providing proof. Choose the phrase that best reflects the nature of the statement and the source's confidence.
What's the difference between "is asserted by" and "is suggested by"?
"Is asserted by" indicates a direct statement or claim, while "is suggested by" implies an indirect or tentative indication. The former is more forceful and direct than the latter.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested