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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
proof exists
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "proof exists" is correct and usable in written English.
It can be used in contexts where you want to assert that evidence or verification for a claim or theory is available. Example: "In the realm of mathematics, it is often stated that proof exists for every theorem that has been proposed."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Wiki
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
52 human-written examples
But no proof exists.
News & Media
-What physical proof exists for this theory?
News & Media
I'm skeptical that such proof exists, though.
News & Media
Now that proof exists, in writing no less.
News & Media
What medical proof exists of a myocardial Infarction?
News & Media
Similarly, if you're trying to prove something mathematically, it's possible that no proof exists.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
8 human-written examples
Gareth J. L. Williams, the curator at Weston Park, said in a telephone interview that no proof existed of her career, but that he welcomed the discussion.
News & Media
Then Sarah Hucklebee Sanders came out and admitted no proof existed but still Wilson was lying.
News & Media
In a 2006 report by an American Academy of Dermatology (AAD) Task Force, a review of available information led the authors to conclude that no causal proof existed that TCIs cause lymphoma or skin cancer.
Although FAP-1 has been suggested to interact with the 'suppressive domain' of Fas receptor that is involved in the inhibition of the apoptotic signal (Ungefroren et al, 2001), no direct proofs exists for the contribution of FAP-1 expression to FasR resistance in colon cancer cells.
Science
Nevertheless, many proofs exist that "normal" hemodynamic parameters (including mean arterial pressure, cardiac index, oxygen transport) can coexist with profound tissue hypoperfusion or microcirculatory derangements [ 21, 22].
Science
Expert writing Tips
Best practice
When using "proof exists", ensure the context clearly indicates what the proof pertains to. Specify the subject or claim for which proof is available to avoid ambiguity.
Common error
Avoid using "proof exists" when the evidence is merely suggestive or circumstantial. Reserve this phrase for situations where the evidence is conclusive and leaves little room for doubt.
Source & Trust
81%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "proof exists" functions as an assertion of the presence of evidence or verification for a particular claim or statement. As Ludwig AI confirms, the phrase is grammatically sound. Examples illustrate its use in various contexts, ranging from scientific theories to legal matters.
Frequent in
News & Media
40%
Science
32%
Wiki
16%
Less common in
Encyclopedias
4%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "proof exists" is a grammatically correct and usable expression to indicate the presence of evidence or verification for a claim. Ludwig AI validates this, and examples show its use in diverse contexts, most frequently in news, scientific and wiki articles. While generally neutral in tone, it leans toward formality and is best used when referring to conclusive or verifiable evidence. Be precise about what the "proof" relates to and avoid overstating the strength of the evidence. Consider alternatives such as "evidence is present" or "verification is available" to better suit the specific context.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
evidence is present
Replaces "proof" with "evidence", which is a broader term for supporting information.
verification is available
Substitutes "proof" with "verification", emphasizing the confirmation aspect.
confirmation can be found
Focuses on the act of finding confirmation, rather than the existence of proof itself.
substantiation is present
Uses the more formal term "substantiation" instead of "proof".
validation is established
Emphasizes the establishment of validity, a more rigorous form of proof.
demonstrable evidence is present
Adds the qualifier "demonstrable" to highlight the clear and convincing nature of the evidence.
grounds for belief exist
Shifts the focus to the basis for belief, rather than explicit proof.
supportive data exists
Specifies that the existing proof takes the form of data.
corroboration is available
Highlights the presence of corroborating evidence.
confirmation can be demonstrated
Indicates the ability to show confirmation, rather than just its existence.
FAQs
How can I use "proof exists" in a sentence?
You can use "proof exists" to assert that evidence or verification for a claim or theory is available. For example: "Now that "proof exists", in writing no less."
What phrases are similar to "proof exists"?
Similar phrases include "evidence is present", "verification is available", or "confirmation can be found", depending on the context.
Is it better to say "proof exists" or "evidence exists"?
"Proof exists" suggests a higher level of certainty and conclusiveness than "evidence exists". Choose the phrase that accurately reflects the strength of the supporting information.
What does it mean when someone says "no proof exists"?
Saying "no proof exists" means there is a lack of evidence or verification to support a particular claim or theory. It indicates that, based on current knowledge, there is no conclusive support for the idea.
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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
4.3/5
Expert rating
Real-world application tested