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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
requirement by which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "requirement by which" is correct and usable in written English.
It can be used to specify a condition or criterion that must be met in a particular context, often in formal or legal writing. Example: "The requirement by which all applicants must submit their transcripts is clearly stated in the job posting."
✓ Grammatically correct
Science
Alternative expressions(4)
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
1 human-written examples
For random events, MBPTA defines representativeness as the requirement by which the impact of any relevant event affecting execution time is properly upperbounded at analysis time.
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Hence there are statutory requirements by which pharmacists need to abide.
Science
The first one originates from the sampling scheme performed within the CSFS, as per EU requirements, by which sampling stops at 150 animals regardless of the holding size [ 8].
Science
Due to their close link to the requirements it is easy to check which requirements are covered by which test scenario.
To design any reliable or predictable surface material based on such oligolysine molecular switch, it is essential to have a detailed understanding of the structural requirements and mechanism by which the oligopeptides on the surface alter the ligand function.
We extend Store Atomicity to capture this ordering requirement by requiring dependencies which cross a transaction boundary to point in to the initiating instruction or out from the committing instruction.
The data sources included: 1. Mandatory requirements by Law, which were gained from the Government of Queensland Health Practitioner Regulation National Law Act [ 10] 2. Entry level physiotherapy competency standards, which were gained from the Australian Standards for Physiotherapy [ 11].
Science
Our mismatch indicator is based on the minimum and maximum skill requirements by occupations, which are estimated as the minimum ((widehat {min}_{j})) and maximum ((widehat {max}_{j})) of the country-occupation distribution of proficiency for those workers who report neither feeling the need of training nor feeling to be able to do more demanding jobs.
Dimension 2, shared values, is about the requirement that the rules by which regulatees are bound are 'intrinsically' justified [17].
The term 'cross-talk' invokes the requirement of a mechanism by which the distinct hormone pathways can communicate with one another.
Science
Stage 1: modelling the process by which requirements can be created from crime scripts, Stage 2: identifying the type of detects encountered in RDs, Stage 3: using the model to deduce the defects in scripts that could cause those in RDs.
Science
Expert writing Tips
Best practice
When using "requirement by which", ensure the clause clearly defines a necessary condition for a subsequent action or outcome. This construction is best suited for formal or technical writing where precision is paramount.
Common error
Avoid using "requirement by which" in informal contexts where simpler alternatives like "the condition for" or "needed for" would suffice. Overuse can make your writing sound unnecessarily convoluted.
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "requirement by which" functions as a relative clause, modifying a noun (often "requirement") to specify a condition or criterion that must be satisfied. This is supported by the Ludwig examples that show it defining conditions within formal contexts.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "requirement by which" is a formal and precise phrase used to introduce a relative clause that specifies a necessary condition or criterion. As confirmed by Ludwig AI, it is grammatically correct. However, its usage is relatively rare, primarily appearing in scientific and formal contexts. When writing, consider whether simpler alternatives could convey the same meaning more effectively in informal settings. Understanding the function and communicative purpose ensures appropriate and impactful integration of the phrase in technical and legal writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
condition by which
Replaces "requirement" with a more general term, maintaining the causal connection.
stipulation under which
Emphasizes a formal or legally binding condition.
criterion by which
Focuses on the standard used for evaluation or judgment.
the means by which a requirement is met
Rephrases to highlight the method for fulfilling the requirement.
the process through which a requirement is satisfied
Focuses on the procedure involved in meeting the need.
mandate by which
Emphasizes the authoritative nature of the requirement.
regulation by which
Highlights the rule-based aspect of the requirement.
provision by which
Replaces "requirement" with something stipulated as a condition.
the standard that must be adhered to
Shifts from a clause to a direct statement of the rule.
essential condition for
Simplified phrasing using "condition for" to convey necessity.
FAQs
How can I use "requirement by which" in a sentence?
Use "requirement by which" to specify a condition or standard that must be met. For instance, "The "requirement by which" all applicants must submit their transcripts is clearly stated in the job posting".
What phrases are similar to "requirement by which"?
Alternatives include "condition by which", "stipulation under which", or "criterion by which", depending on the nuance you want to convey.
Is "requirement by which" formal or informal?
"Requirement by which" is generally considered formal. Simpler alternatives are more appropriate for informal settings. Formal options include "mandate by which" or "regulation by which".
What's the difference between "requirement by which" and "the requirement that"?
"Requirement by which" introduces a relative clause specifying a condition. "The requirement that" is often followed by a clause expressing the specific demand. The former focuses on the standard itself, while the latter emphasizes the demanded action.
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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
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested