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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 assumed to exist
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is assumed to exist" is correct for use in written English.
This phrase is typically used when something is taken as given even though there is not definitive proof of its existence. For example, "The hidden city of Atlantis is assumed to exist, although it has yet to be discovered."
✓ Grammatically correct
Science
Encyclopedias
Alternative expressions(2)
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
54 human-written examples
An endogenous molecular--cellular network for both normal and abnormal functions is assumed to exist.
Science
No global schema is assumed to exist for any data under this computing paradigm.
Science
The damage is assumed to exist before the vibration starts and not to grow during oscillations.
Material damage in the form of small cracks is assumed to exist in a material element of interest.
Another feature of contemporary logical languages is that in them some class of entities, sometimes called the "universe of discourse," is assumed to exist.
Encyclopedias
UWIS reveals a strong relationship between quality and usability which is assumed to exist by many researchers but not experimentally analyzed yet.
Human-verified similar examples from authoritative sources
Similar Expressions
6 human-written examples
Bounded additive noises are assumed to exist when the state variables are measured for feedback.
Science
Two complexes, QABN.HNO3 and QABN.2HNO3, have been assumed to exist in the organic phase.
Science
Turbulence was assumed to exist within the fluid phase and a low Reynolds k ε closure was used to model it.
To obtain good match between theory and experiment, small ideal mixers were assumed to exist within the column in addition to axially dispersed plug flow and time delay.
Science
The dense colloids are assumed to exist in two different phases: suspended in the aqueous phase, and attached reversibly and/or irreversibly onto the solid matrix.
Expert writing Tips
Best practice
When using "is assumed to exist", clearly state the reasons or context for the assumption to avoid ambiguity and strengthen your argument.
Common error
Avoid presenting something that "is assumed to exist" as a confirmed fact. Ensure the assumption is acknowledged as such, and provide caveats if necessary.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is assumed to exist" functions as a modal expression, indicating that the existence of something is taken as a premise, often in the absence of complete evidence. Ludwig provides numerous examples of its usage across scientific and academic contexts.
Frequent in
Science
95%
Encyclopedias
3%
Academia
1%
Less common in
News & Media
0%
Formal & Business
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "is assumed to exist" is a common expression, as Ludwig AI confirms, primarily used within scientific and academic writing to denote a premise accepted for the sake of argument or modeling, despite a lack of conclusive evidence. Its grammatical structure is straightforward, and its usage is widely considered correct. When employing this phrase, clarity in outlining the rationale behind the assumption is crucial. Alternatives such as "is hypothesized to exist" or "is presumed to exist" can be employed to subtly alter the emphasis. However, ensure that any assumed existence is not misrepresented as a proven fact. Its formal tone and frequent appearances in scientific literature position it as a key tool in academic discourse.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is posited to exist
Replaces "assumed" with "posited", emphasizing a theoretical proposal.
is hypothesized to exist
Substitutes "assumed" with "hypothesized", highlighting the speculative nature.
is presumed to exist
Uses "presumed" instead of "assumed", suggesting acceptance based on probability.
is considered to exist
Employs "considered" instead of "assumed", indicating evaluation and acceptance.
is understood to exist
Replaces "assumed" with "understood", implying a shared agreement or knowledge.
is believed to exist
Substitutes "assumed" with "believed", emphasizing a conviction or faith-based acceptance.
is thought to exist
Uses "thought" instead of "assumed", suggesting a reflective consideration.
is taken to exist
Replaces "assumed" with "taken", indicating an acceptance without deep examination.
existence is presupposed
Changes the sentence structure to emphasize the existence being a prior condition.
one supposes it exists
Shifts to a more conversational tone, expressing a personal supposition.
FAQs
How do I use "is assumed to exist" in a sentence?
Use "is assumed to exist" when presenting a concept or entity whose existence is taken as a given, though not definitively proven. For example: "Dark matter "is assumed to exist" to explain certain gravitational effects."
What can I say instead of "is assumed to exist"?
You can use alternatives like "is hypothesized to exist", "is presumed to exist", or "is believed to exist" depending on the context.
When is it appropriate to use "is assumed to exist" over other similar phrases?
"Is assumed to exist" is best when the existence is a foundational premise for further reasoning or modeling. Other phrases might emphasize belief or hypothesis more strongly.
What's the difference between "is assumed to exist" and "is known to exist"?
"Is assumed to exist" implies a lack of definitive proof, while "is known to exist" indicates confirmed existence supported by evidence.
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested