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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
a part thereof
Grammar usage guide and real-world examplesUSAGE SUMMARY
"a part thereof" is correct and can be used in written English.
It means "a part of that thing" or "a portion of that entity." Example: "The contract states that the buyer shall have the right to a part thereof, specifically 25% of the profits."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(20)
an element of it
a simplification thereof
a proportion thereof
a simulation thereof
a blend of these
a cocktail thereof
a lack thereof
a percentage thereof
any combination of the above
a version thereof
a fraction thereof
a range thereof
a simulacrum thereof
a consequence thereof
a portion thereof
a realization thereof
a factor thereof
a mix thereof
some combination of these
a copy thereof
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
4 human-written examples
Thus mathematics, or even a part thereof, can't be both logic and about objects.
Science
The latter are conceptually closer, as is the homeokinetic approach [63], [64] and a closely related information-theoretic variant of that method, based on predictive information [32] which considers maximizing predictive information in the system, i.e. the information that the sensory past (or a part thereof) of the agent has about its future.
Science
Our structure similarity searches identified a few structures which, despite lacking the core conserved topology of the classical β-GF, aligned well with a part thereof.
Science
Antigen switching involves mostly replacement, by gene conversion, of the expressed VSG copy (or a part thereof), by all (or part) of another VSG. 1, 21 Only one ES is active at a time, which requires occupancy of a specific nuclear niche, the ES Body (see below), and inactivity of the other ES involves a telomere position effect.
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
We defined single-region for the purpose of this review as either a country or any part thereof.
Science
This states: "The company shall not without the prior written consent of the Player Finance Fund sell, transfer or otherwise dispose of or part with the charged property or any part thereof or interest therein".
News & Media
Parliament may restrict the rights to freedom of speech, assembly or association if it is necessary or expedient in the interests of the security of Singapore or any part thereof.
Wiki
We had no way of reliably assessing how many survey children had moved away from WA for the entire follow-up period or any part thereof.
Science
The nozzle (1) is constituted, in a first part thereof, by a conduit (8) divided into two channels by a central baffle (9) and, in a second part thereof, by a convergence zone and an outflow mouth (5) whose walls have a curvilinear profile and are connected seamlessly to the walls of the conduit.
This strongly suggests that PGCs form via the fission of an entire precursor domain (or a large part thereof) from the rest of the TGN membranes.
So it follows that if they want to insult another man, they'll equate him with a woman or part thereof.
News & Media
Expert writing Tips
Best practice
Use "a part thereof" in formal and legal contexts when you need to refer to a portion of something previously mentioned.
Common error
Avoid using "a part thereof" in casual writing; opt for simpler alternatives like "part of it" for clarity and better flow.
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a part thereof" functions as a post-modifying prepositional phrase. It clarifies the extent or scope of something previously mentioned. Ludwig's examples demonstrate its use in diverse contexts, from legal documents to scientific research.
Frequent in
Science
65%
News & Media
25%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "a part thereof" is a formal prepositional phrase used to specify a portion of something previously mentioned. Ludwig AI confirms its correctness and suitability for formal, legal, or scientific contexts. While grammatically sound, it is advisable to use simpler alternatives like "part of it" in informal writing. The phrase is most frequently encountered in scientific and news-related content, as demonstrated by Ludwig's examples. When clarity and formality are paramount, "a part thereof" is a precise choice.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a portion of that
Replaces 'thereof' with 'of that', making it slightly less formal.
a segment of it
Implies a distinct section or division of the whole.
a piece of it
Uses a more casual term ('piece') to denote a fragment.
a component of that
Highlights the role of the portion as a building block.
a section of that
Refers to a specific area or division.
a fraction of that
Emphasizes the numerical proportion of the portion.
a constituent of that
Highlights the role of the portion as forming the whole.
a share of that
Suggests a division or allotment of the whole.
an element of it
Focuses on the fundamental nature of the portion.
a fragment of that
Implies a broken or detached piece.
FAQs
How can I use "a part thereof" in a sentence?
Use "a part thereof" to refer to a portion of something that has already been identified. For example: "The agreement covers the main building and "a part thereof", specifically the west wing."
What's a simpler way to say "a part thereof"?
Alternatives include "part of it", "a portion of that", or "a piece of it". Choose the phrase that best fits the tone and context of your writing.
Is "a part thereof" formal or informal?
"A part thereof" is generally considered formal. It is often used in legal documents, contracts, and other formal writing.
What is the difference between "a part thereof" and "part of it"?
"A part thereof" and "part of it" have similar meanings, but "a part thereof" is more formal and typically used when referring back to something already mentioned. "Part of it" is more common in everyday language.
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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