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
appropriate proof
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "appropriate proof" is correct and usable in written English.
It can be used when referring to evidence or documentation that is suitable or fitting for a particular purpose or situation. Example: "To support your application, please provide appropriate proof of your qualifications."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(2)
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
"We were unable to get sufficient and appropriate proof for auditing on specific assets and amounts," wrote the auditor, KPMG AZSA.
News & Media
The PVS interactive theorem prover was then used to apply the appropriate proof strategies and discharge the proof obligations.
Thus Justification Logic addresses some of the central issues of hyperintensionality but, as a bonus, we automatically have an appropriate proof theory, model theory, complexity estimates and a broad variety of applications.
Science
"The ABC consortium have also been informed that any unconditional offer would also have to be accompanied by a detailed business plan, the identity of all material shareholders and proposed directors and the appropriate proof that the required levels of funding are in place.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
Cyt c is one of the key co-factors for the activation of apoptosis in mammalian cells [62] and is known to be a difficult cargo for targeted delivery into cells [6], [74], thus justifying the employment of cyt c as an appropriate "proof-of-principle" reagent.
Science
Secondly, we obtain the exact closed-form expression to the outage probability of UCR-OR systems by using appropriate mathematical proof.
Specially, by using appropriate mathematical proof, the closed-form expressions of outage probability would be achieved for the two cases where the CC-MIMO multiuser systems have the perfect and imperfect CSI.
In most cases, stem cell studies involving animal models use mice because of their ease in handling, reproduction, and genetic manipulation, making them appropriate for proof-of-principle studies.
Science
Applying biomarkers in early clinical trials helps identify the most appropriate patients; provides proof of concept for target modulation; helps test the underlying hypothesis; informs the rational selection of dose and schedule; aids decision making, including key go/no go questions; and may explain or predict clinical outcomes.
Science
(Note that appropriate criteria for proof beyond reasonable doubt cannot be specified precisely.
Science
Appropriate criteria for proof beyond reasonable doubt cannot be specified precisely.
Science
Expert writing Tips
Best practice
When requesting "appropriate proof", clearly specify the exact types of documents or information you require to avoid ambiguity.
Common error
Avoid vague requests for "appropriate proof" without detailing what specific evidence is required, which can lead to irrelevant or insufficient submissions.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "appropriate proof" functions as a noun phrase where the adjective "appropriate" modifies the noun "proof". It describes evidence or documentation that is suitable or fitting for a particular requirement or context. This aligns with Ludwig's assessment of the phrase as usable in written English.
Frequent in
Science
33%
News & Media
25%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
8%
Reference
0%
Ludwig's WRAP-UP
In summary, "appropriate proof" is a grammatically sound and frequently used phrase that describes evidence or documentation that is suitable for a particular purpose. As Ludwig highlights, it's crucial to specify what constitutes "appropriate proof" to avoid ambiguity. The phrase is versatile across various domains, including science, news, and formal business contexts, making it a valuable addition to any writer's vocabulary. Related alternatives include "suitable evidence" and "valid documentation", each offering nuanced ways to convey the intended meaning. Remember to provide clear guidance on what constitutes "appropriate proof" to ensure the correct information is provided.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
suitable evidence
Replaces "proof" with "evidence", suggesting a broader range of supporting information.
valid documentation
Focuses on the official or formal nature of the "proof", implying authenticity and compliance.
relevant verification
Highlights the act of verifying something as pertinent and connected to the matter at hand.
proper substantiation
Emphasizes the correctness and adequacy of the supporting information.
fitting validation
Stresses the act of confirming or supporting something as suitable for the purpose.
acceptable justification
Indicates that the "proof" is considered satisfactory or permissible within a certain standard.
satisfactory confirmation
Highlights that the "proof" sufficiently confirms or verifies a particular claim.
requisite authentication
Focuses on the necessity of authenticating something with the needed "proof".
due attestation
Implies that the "proof" serves as a formal declaration or testimony that is rightfully expected.
apt demonstration
Highlights that the "proof" aptly demonstrates or showcases a particular fact or concept.
FAQs
How can I use "appropriate proof" in a sentence?
You can use "appropriate proof" to refer to evidence or documentation that is suitable or fitting for a particular purpose or situation. For example: "To support your application, please provide "appropriate proof" of your qualifications."
What can I say instead of "appropriate proof"?
You can use alternatives like "suitable evidence", "valid documentation", or "relevant verification" depending on the context.
Which is correct, "appropriate proof" or "adequate proof"?
Both ""appropriate proof"" and "adequate proof" are correct, but "appropriate proof" emphasizes that the evidence is specifically suited to the situation, while "adequate proof" simply means the evidence is sufficient.
What's the difference between "appropriate proof" and "sufficient proof"?
"Appropriate proof" refers to evidence that is not only adequate but also relevant and suitable for the context. "Sufficient proof" simply means there is enough evidence to meet a certain threshold.
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested