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
for proof
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'for proof' is correct and usable in written English.
You can use it in a sentence to emphasize that something is irrefutable evidence of something else. For example, "I have the finalized contract right here, for proof of our agreement."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
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
57 human-written examples
An investigator asked for proof.
News & Media
Pointing at the empties for proof.
News & Media
For proof, he looks to the market.
News & Media
You look for proof points.
News & Media
Read James Shapiro's 1599 for proof.
News & Media
He decided to look for proof.
News & Media
"I'm just asking for proof," he says.
News & Media
When I asked for proof, he started at the beginning.
News & Media
He only has to look to Fassel for proof.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
We thank Paul Majcherczyk for proof-reading the manuscript.
Science
We thank Lucille Schmieding for proof-reading the manuscript.
Science
Expert writing Tips
Best practice
Use "for proof" to directly point to a specific piece of evidence that supports a claim, making your argument more persuasive and credible. Ensure the evidence is directly relevant and clearly demonstrates the point you're making.
Common error
Avoid relying solely on "for proof" without providing sufficient context or explanation of the evidence. Ensure the evidence is strong enough to support the claim and that you explain how it connects to your argument.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "for proof" functions as a prepositional phrase. It serves as an adjunct, modifying a clause by providing the reason or evidence supporting a statement. Ludwig AI indicates its usability in written English.
Frequent in
News & Media
44%
Science
22%
Wiki
18%
Less common in
Formal & Business
10%
Academia
3%
Reference
3%
Ludwig's WRAP-UP
In summary, "for proof" is a grammatically sound and frequently used prepositional phrase that introduces evidence or justification for a claim. Ludwig AI confirms its validity and it’s highly versatile, appearing across various contexts, including News & Media, Science, and Wiki sources. When using this phrase, ensure that the evidence provided is relevant and clearly explained to support your argument effectively. While acceptable in formal contexts, you may consider more sophisticated alternatives like "as verification" or "to substantiate" for a more polished tone.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
as evidence
Replaces 'proof' with 'evidence', focusing on the evidentiary aspect.
as confirmation
Replaces 'proof' with 'confirmation', focusing on the act of verifying.
as verification
Emphasizes the act of confirming something's truth or accuracy.
serving as evidence
This phrase emphasizes that something actively acts as a sign of proof.
to demonstrate
Highlights the act of showing or illustrating something clearly.
to substantiate
Focuses on providing evidence to support a claim or statement.
in confirmation of
Formal way to indicate that something supports or validates a previous statement.
as corroboration
Implies that the information given serves to confirm or support a theory or finding.
to validate
Highlights the action of confirming the validity of something.
in support of
Indicates that something provides backing or justification.
FAQs
How can I use "for proof" in a sentence?
You can use "for proof" to introduce evidence that supports a statement. For example, "I have the signed contract right here, "for proof" of our agreement."
What are some alternatives to saying "for proof"?
Alternatives include "as evidence", "to demonstrate", or "in support of". The best choice depends on the specific context and the nuance you want to convey. Consider using "as evidence" to present factual support or "to demonstrate" to show something clearly.
Is it always necessary to provide evidence after using "for proof"?
Yes, using "for proof" implies that you are about to present evidence. Failing to provide that evidence weakens your statement and can confuse your audience.
Can "for proof" be used in formal writing?
Yes, "for proof" can be used in formal writing, but consider using more sophisticated alternatives like "as verification" or "to substantiate" for a more professional tone. Using "as verification" or "to substantiate" shows more formality.
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested