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
that proves
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that proves" is correct and usable in written English.
You can use it when you want to indicate that something demonstrates or establishes the truth of a statement or claim. Example: "The data collected from the experiment is compelling evidence that proves the hypothesis."
✓ Grammatically correct
News & Media
Wiki
Science
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
59 human-written examples
Selecting anecdotal evidence that proves one's case.
News & Media
The picture that "proves" this is here.
News & Media
It is this that proves her undoing.
News & Media
It's the latter that proves most interesting.
News & Media
(I, of course, am the exception that proves this rule).
News & Media
("Louie" is one of the exceptions that proves the rule).
News & Media
here, sticking to the "exception that proves the rule" excuse.
News & Media
Perhaps it's the exception that proves the rule.
News & Media
Unless you're "the exception that proves the rule".
News & Media
They are the exception that proves the rule.
News & Media
" The Godfather II, the exception that proves the rule".
News & Media
Expert writing Tips
Best practice
Use "that proves" to clearly and directly link evidence to a conclusion in your writing. It enhances clarity and strengthens your argument.
Common error
Avoid using "that proves" excessively in casual conversation or informal writing, where simpler alternatives may sound more natural. Consider variations such as "which shows" or "this means".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that proves" functions as a relative clause introducing a statement of evidence or confirmation. It connects a preceding element (a fact, observation, or argument) to the conclusion or outcome it supports. As Ludwig AI confirms, it’s a correct and usable phrase.
Frequent in
News & Media
61%
Wiki
21%
Science
8%
Less common in
Formal & Business
4%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "that proves" serves as a relative clause that connects evidence to a conclusion, enhancing the strength of an argument. Ludwig AI confirms its correct usage. While most commonly found in news and media contexts, it's also prevalent in wiki articles and scientific writing, making it a versatile phrase. When using "that proves", consider its impact on the tone and ensure it fits the formality of your writing. While simpler alternatives exist for casual use, "that proves" is an effective way to create clarity and strengthen claims in a variety of contexts. When in doubt, explore alternatives like "which demonstrates" or "which confirms" for similar meanings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
which demonstrates
Replaces "that proves" with a more formal and direct synonym.
which confirms
Similar in meaning, but implies a validation of something already suspected.
which establishes
Indicates a firm and undeniable conclusion.
showing that
A more concise way to introduce evidence.
as evidenced by
Highlights the evidence itself as the focal point.
this indicates
Shifts the emphasis to the implication drawn from the evidence.
this validates
Suggests something is officially or formally confirmed.
this supports
Indicates the evidence provides backing for a claim.
it follows that
Emphasizes a logical consequence or deduction.
this argues that
Implies the evidence is presented to make a specific case.
FAQs
How can I use "that proves" in a sentence?
Use "that proves" to connect evidence or facts to a conclusion, like in: "The experiment yielded results "that proves" the hypothesis". It is crucial to ensure a clear logical connection.
What are some alternatives to "that proves"?
Depending on the nuance you want to convey, alternatives include "which demonstrates", "which confirms", or "which establishes". Choose the one that best fits the specific context.
Is it always necessary to include "that" before "proves"?
While not always grammatically required, including "that" often enhances the clarity and flow of the sentence, especially in formal writing. Omitting "that" is more common in informal contexts.
What's the difference between "that proves" and "this proves"?
"That proves" typically refers back to a specific piece of evidence or a prior statement, while "this proves" often introduces a new piece of evidence or a more immediate observation. The choice depends on the specific context and flow of your argument.
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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