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
proof of that
Grammar usage guide and real-world examplesUSAGE SUMMARY
"proof of that" is correct and usable in written English.
You can use it to introduce additional evidence or information that confirms a previous statement. For example, "I have already seen the evidence that supports my theory. Here is further proof of that."
✓ Grammatically correct
News & Media
Formal & Business
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
60 human-written examples
Jann is proof of that.
News & Media
"I have proof of that.
News & Media
"I'm living proof of that.
News & Media
It has no proof of that.
News & Media
Show me the video proof of that.
News & Media
This budget is proof of that.
News & Media
Callum is proof of that.
News & Media
We're living proof of that.
News & Media
I'd like proof of that.
News & Media
Owen is living proof of that.
News & Media
"The Breathing Show" was proof of that.
News & Media
Expert writing Tips
Best practice
Use "proof of that" to seamlessly introduce evidence or examples that reinforce a prior statement, ensuring a logical flow in your writing.
Common error
Avoid using "proof of that" without a clear and directly preceding statement to which it refers. Ensure the connection is unambiguous to prevent reader confusion.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "proof of that" functions as a transitional phrase used to introduce evidence or examples that support a preceding statement. Ludwig AI indicates that it is correct and usable in written English. It serves to connect a claim with its supporting evidence, enhancing clarity and persuasiveness.
Frequent in
News & Media
78%
Formal & Business
12%
Academia
4%
Less common in
Science
3%
Wiki
2%
Encyclopedias
1%
Ludwig's WRAP-UP
In summary, "proof of that" is a grammatically correct and commonly used phrase that serves to introduce supporting evidence for a previous statement. According to Ludwig AI, the phrase is appropriate in written English. It is most frequently found in news and media contexts, but also appears in formal business settings. To use it effectively, ensure there is a clear antecedent to which it refers, and consider alternatives like ""evidence supporting that"" or ""that demonstrates"" to add variety to your writing. It is a versatile phrase that can strengthen your arguments by providing concrete validation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
evidence supporting that
Focuses on the evidentiary aspect, highlighting the support for a claim.
confirmation of that
Emphasizes the act of verifying or confirming something previously stated.
that's indicative of
Shifts the focus to suggestion or indication rather than direct proof.
that demonstrates
Highlights the action of showing or making something evident.
that validates
Implies a more formal or official endorsement of the preceding statement.
that substantiates
Similar to validates, but emphasizes providing solid support or foundation.
that bears witness to
Adds a sense of witnessing or attesting to the truth of something.
that attests to
Formal way to say that something serves as evidence or proof.
corroboration of that
Similar to confirmation, but implies strengthening the original statement with additional evidence.
that gives credence to
Focuses on lending believability or trustworthiness to the previous statement.
FAQs
How can I use "proof of that" in a sentence?
Use "proof of that" to introduce evidence or examples that support a statement you've just made. For example, "The company's profits have increased significantly this year. This success is "proof of that"."
What are some alternatives to saying "proof of that"?
You can use alternatives such as "evidence supporting that", "confirmation of that", or "that demonstrates" depending on the context.
Is it grammatically correct to say "proof of that"?
Yes, "proof of that" is grammatically correct and commonly used to provide supporting evidence for a preceding statement.
What's the difference between "proof of that" and "evidence of that"?
While both phrases indicate support for a claim, ""proof of that"" implies a more definitive or conclusive validation, whereas "evidence of that" suggests supporting information that may not be entirely conclusive.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested