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
contained within the set
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "contained within the set" is correct and usable in written English.
It can be used in mathematical or logical contexts to describe elements that are included in a specific collection or group. Example: "All the numbers that are even are contained within the set of natural numbers."
✓ Grammatically correct
Science
News & Media
Academia
Alternative expressions(20)
is contained within
contained within
are contained within this
contained in this set
that are contained within
Within that set
as contained within
set within
within the set
are contained within
it was contained within
be contained within
that is contained within
it is contained within
be contained within the
should be contained within
contained within are
contained within this
was contained within
as being contained within
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
7 human-written examples
Gradually one became aware of a black bird stalking about, contained within the set by a subtle scrim that also softened the light.
News & Media
It therefore follows that the quotient of the product of any set of primes has remainder zero only when divided by 1 or one of the primes contained within the set (we refer the reader to [10] for a formal proof of this property).
We constructed 45 seven to twelve-biomarker classifroms from this set of 44 potential biomarkers that met our performance criteria, which suggests that there is significant redundancy in the information contained within the set of potential biomarkers.
Science
Only ortholog groups containing at least two sequences for which EC annotation is available were examined, and groups were considered to be consistent if all EC annotations are identical or consistent (i.e. where one enzyme's EC number(s) are contained within the set of EC numbers used to describe the other multifunctional enzyme).
Science
We are encouraged that the clinical signs that we identified are contained within the set of 14 signs predictive of sepsis identified from data collected in the WHO multicenter study and were specifically associated with meningitis [ 8- 10].
Science
The exact solution would require a search through all subsets of size T. The proposed algorithm is computationally faster and assumes that the set that is optimal for size T will be contained within the set that is optimal for size T + 1.
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
Homology values (H-values) are defined as an arbitrary unit measuring the degree of similarity between a single protein coding sequence from the reference set and all proteins contained within the user defined subject sets.
Science
It should be kept in mind that although the tORFM set is contained within the tORFX set, the derived matreshka sets only partially overlap, due to the properties of the conservation filter.
Science
Although the tORFM sequences are contained within the tORFX set, the subsequent conservation filter produces different matreshka sets.
Science
However, the peaks mapped by TAMAL represent a subset of peaks mapped by the permutation algorithm, and were completely contained within the latter set, indicating that the discrepancy in peak number and size is a result of different stringencies set by these algorithms (Supplementary Material, Fig. S3B).
Science
All quantitative PCR assays were developed with at least one primer contained within the probe set identity region of the bovine transcript.
Science
Expert writing Tips
Best practice
When writing in scientific or technical contexts, use the phrase "contained within the set" to clearly indicate that certain elements are part of a larger, defined collection. This helps ensure precision and avoids ambiguity.
Common error
Avoid using "contained within the set" in informal writing or speech where simpler alternatives like "part of" or "included in" would be more appropriate. Overusing formal language can make your writing sound stilted or pretentious.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "contained within the set" functions as a prepositional phrase, typically used to specify the inclusion or membership of elements within a clearly defined collection. As Ludwig AI confirms, the phrase is grammatically correct and suitable for formal contexts.
Frequent in
Science
83%
Academia
11%
News & Media
6%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "contained within the set" is a grammatically correct and precise way to describe the inclusion of elements within a defined collection. Ludwig AI indicates its proper usage is in formal contexts, particularly in scientific and academic writing. While alternatives such as "included in the set" or "part of the set" exist, they may lack the specificity required in technical discussions. The phrase, as confirmed by Ludwig, is less common in informal speech and writing where simpler language is preferable.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Included within the set
Replaces "contained" with "included", emphasizing membership.
Enclosed within the set
Uses "enclosed" instead of "contained", highlighting the idea of being surrounded or bounded by the set.
Part of the set
Simplifies the expression to indicate direct membership.
Belonging to the set
Focuses on the relationship of belonging or ownership by the set.
Found inside the set
Uses a more literal term, "found", to convey the idea of location within the set.
Present in the set
Emphasizes the existence of elements within the set.
Existing within the set
Highlights the existence of elements as a feature of the set.
Comprised by the set
Shifts the focus to the set as the entity encompassing the elements.
Constituent of the set
Highlights the element as a component that contributes to make up the set.
Encapsulated by the set
Similar to 'enclosed', but implies a protective or defining enclosure.
FAQs
How can I use "contained within the set" in a sentence?
This phrase is used to indicate that certain elements are part of a larger group or collection. For example, "All even numbers are "included within the set" of integers."
What are some alternatives to "contained within the set"?
You can use alternatives like "included in the set", "part of the set", or "belonging to the set" depending on the specific context and desired level of formality.
Is it more appropriate to say "contained in the set" or "contained within the set"?
"Contained within the set" is more precise, implying that the elements are fully encompassed by the boundaries of the set. "Contained in the set" is also acceptable, but may be perceived as less formal.
What's the difference between "contained within the set" and "comprising the set"?
"Contained within the set" refers to the elements that are part of the set, while "comprising the set" refers to the elements that make up the whole set. The perspective changes: the former focuses on elements inside, the latter on elements as the components of the set.
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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested