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
principle of parity
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "principle of parity" is correct and usable in written English.
It can be used in contexts related to mathematics, logic, or discussions about fairness and equality. Example: "In this mathematical proof, we will apply the principle of parity to demonstrate the validity of our argument."
✓ Grammatically correct
News & Media
Science
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
10 human-written examples
Recent papers include The principle of parity: the placebo and physician communication.
News & Media
Welcome to today's N.F.L., a league ruled from the ground up by the principle of parity.
News & Media
Failure to is a breach of the principle of parity of esteem for mental and physical health.
News & Media
Conversations with a major leadership in Congress and others failed to persuade the government that the principle of parity should be converted into law.
News & Media
It will be based on the political discussions that followed the law on marriage equality in France, but also the practical obstacles to the principle of parity in the Macron era.
Academia
The key phrase was that the "principle of parity," or equal level of arms, "must apply to all weapons," and not just those in the United States and the Soviet Union.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
50 human-written examples
He also developed with Kublai the "dual principle" of the parity of power and dignity of church and state in political matters.
Encyclopedias
*other channels are available, like the YouTube** one of cats trying out for Columbus Crew*** **other video sharing platforms are available *** other MLS teams are available**** **** this footnote has been brought to you through the principle of "forced parity", which will not apply at the World Cup.
News & Media
Under her overarching principle of participatory parity, "justice requires social arrangements that permit all (adult) members of society to interact with one another as peers" (1996, 31).
Science
Elsewhere, Ruth Dunnell, Wang Gungwu, Tao Jing-shen, and David Wright have all argued that Song applied the principle of diplomatic parity only to Liao and not to Xi Xia or to any other political regimes.
Academia
In its limited concern with material equality and its emphasis on social equality, equality of respect has strong affinities with Fraser's own "principle of participatory parity" (see Fraser 1996 in the Other Internet Resources).
Science
Expert writing Tips
Best practice
When discussing complex systems, use "principle of parity" to emphasize the need for equal consideration of all components or aspects, ensuring no single element is disproportionately favored or neglected.
Common error
Avoid using "principle of parity" when simply referring to general equality. This phrase often implies a more nuanced balance or equivalence within a specific framework, rather than a broad statement of equality.
Source & Trust
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "principle of parity" functions as a noun phrase that identifies a guiding rule or fundamental concept. Ludwig's examples demonstrate its usage in diverse fields ranging from physics to social sciences, underlining its broad applicability.
Frequent in
News & Media
40%
Science
30%
Encyclopedias
20%
Less common in
Academia
10%
Formal & Business
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "principle of parity" is grammatically sound and suitable for use across various contexts, particularly in discussions concerning fairness, balance, and equality. Ludwig AI indicates that it is commonly used in news media, science, and encyclopedic sources, which contributes to its authoritative tone. While there are related phrases like "equality principle" or "balance principle", "principle of parity" often implies a more nuanced consideration of equivalence within a specific framework. Be mindful of its specific implications to prevent misapplication, ensuring it aligns with the intended meaning of balanced importance.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
equality principle
Focuses specifically on the concept of equality, omitting the nuances of balance implied by 'parity'.
balance principle
Highlights the aspect of equilibrium or balance inherent in the idea of parity.
fairness doctrine
Emphasizes the aspect of fairness and just treatment, shifting the focus from pure equality to equitable outcomes.
equality of opportunity
Highlights the specific aspect of providing equal chances or prospects.
level playing field
An idiomatic expression implying equal conditions for all participants.
equal footing
Highlights the idea of being on the same level or status.
principle of equivalence
Focuses on the concept of being equal in value or meaning.
symmetry principle
Refers to a balanced or mirrored arrangement or proportion.
impartiality principle
Highlights the concept of unbiased and fair treatment.
justice principle
Broadens the scope to encompass overall fairness and moral rightness.
FAQs
How can I use "principle of parity" in a sentence?
You can use "principle of parity" to emphasize the importance of equal status or treatment. For example: "The company operates on the "principle of parity", ensuring all employees receive equal opportunities for advancement".
What's the difference between "principle of parity" and "equality"?
"Equality" generally means being equal in status, rights, or opportunities. The "principle of parity", however, often implies a more nuanced balance or equivalence within a specific framework or system, suggesting a careful consideration of relative values or impacts. It's less about sameness and more about balanced importance.
What are some alternatives to the phrase "principle of parity"?
Depending on the context, you could use "equality principle", "balance principle", or "fairness doctrine" as alternatives.
In what fields is the "principle of parity" commonly applied?
The "principle of parity" finds application across various fields, including physics (parity conservation), politics (equal representation), economics (purchasing power parity), and social sciences (equal treatment and opportunities).
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
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested