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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
problem in which
Grammar usage guide and real-world examplesUSAGE SUMMARY
"problem in which" is a perfectly correct and usable part of a sentence in written English.
You could use it in a variety of ways, for example: "We are facing a difficult problem in which we must decide whether or not to proceed with the project."
✓ Grammatically correct
Science
News & Media
Encyclopedias
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
60 human-written examples
This is just one more health problem in which obesity plays a role".
News & Media
It should also have said that this is a worldwide problem in which Britain has one of the worst records.
News & Media
It's what is sometimes called a "double minority" problem, in which both Palestinians and Israelis feel surrounded.
News & Media
Many people consider dyslexia simply a reading problem in which children mix up letters and misconstrue written words.
News & Media
But it ignores a less obvious dimension to the problem, in which the culprit isn't work, but leisure.
News & Media
Economists refer to this chicken-and-egg problem, in which cause and effect become entangled, as "endogeneity".
News & Media
Large breeds also are at risk for an orthopedic problem in which the hip joint does not develop properly.
Encyclopedias
Exactly how to use this information is a difficult problem in which individual judgment plays an important part.
Encyclopedias
Consider a supervised learning problem in which examples contain both numerical- and text-valued features.
Science
This paper proposes an uncertain random assignment problem in which random variables coexist with uncertain variables.
This poses a security problem in which an attacker intentionally introduces traffic burstiness into routers.
Science
Expert writing Tips
Best practice
To improve sentence flow, consider whether a simpler construction (e.g., a prepositional phrase or a compound noun) could replace "problem in which" without sacrificing precision.
Common error
Avoid using "problem in which" if the relationship between the problem and the "which" clause is vague or indirect. Ensure that the clause directly and explicitly describes an essential aspect of the problem.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "problem in which" functions as a relative clause introducing a description or specification of the "problem". Ludwig AI confirms this usage through numerous examples where the phrase elaborates on the nature or characteristics of a problem.
Frequent in
Science
49%
News & Media
28%
Encyclopedias
4%
Less common in
Formal & Business
0%
Wiki
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "problem in which" is a commonly used construction to introduce a relative clause that clarifies or describes the nature of a given issue. Grammatically correct and widely accepted, as validated by Ludwig AI, it appears frequently in scientific literature, news articles, and encyclopedic entries. When using this phrase, ensure the "which" clause clearly defines the problem to maintain clarity. While alternatives like "issue where" or "case in which" exist, "problem in which" offers a formal and precise way to elaborate on a particular problem's characteristics. Its frequent use in authoritative sources underscores its reliability for academic, professional, and general informational contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
issue where
Replaces "problem" with "issue" and "in which" with "where", altering the noun and connector while maintaining the core relationship.
case in which
Replaces "problem" with "case", focusing on a specific instance rather than a general issue.
situation wherein
Substitutes "problem" with "situation" and "in which" with the more formal "wherein", increasing the formality of the phrase.
scenario where
Employs "scenario" instead of "problem", highlighting a hypothetical or possible situation.
circumstance under which
Uses "circumstance" to denote a specific condition, emphasizing the surrounding details.
predicament involving
Substitutes "problem" with "predicament" and uses "involving" to connect it to a related element, suggesting a challenging situation.
challenge that involves
Replaces "problem" with "challenge", emphasizing a difficult task or obstacle, and uses "that involves" to connect it to a related element.
difficulty with
Replaces the entire relative clause with a prepositional phrase, simplifying the structure.
quandary where
Replaces "problem" with "quandary", indicating a state of uncertainty or perplexity, and "in which" with "where".
enigma in that
Substitutes "problem" with "enigma" and "in which" with "in that", creating a more mysterious and formal tone.
FAQs
How can I use "problem in which" in a sentence?
Use "problem in which" to introduce a clause that explains or defines the nature of a particular issue. For instance, "Obesity is a health "problem in which" excess body fat has accumulated to the extent that health is negatively affected".
What are some alternatives to using "problem in which"?
You can use alternatives such as "issue where", "situation wherein", or "case in which", depending on the specific nuance you want to convey. For example, you can write "This is an "issue where" Britain has one of the worst records".
Is there a difference between "problem in which" and "problem where"?
"Problem in which" is generally considered more grammatically formal and precise, while "problem where" is often used in more informal contexts. Both are used to introduce a clause that further describes the problem. For example, you can write "This is a "problem where" there is a misinterpretation of data".
When should I use "problem in which" instead of a simpler construction?
Use "problem in which" when you need to provide a detailed explanation or definition of the problem directly within the sentence. If the explanation can be easily separated, a simpler construction might be preferable. An alternative and simpler construction could be "This is a security "problem with" routers".
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested