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
this concludes the proof
Grammar usage guide and real-world examplesUSAGE SUMMARY
'this concludes the proof' is correct and usable in written English.
You can use it when you want to emphasize that you have finished presenting evidence or a logical argument to support a claim or idea. For example, "After providing several examples, this concludes the proof that raising the speed limit on this highway will lead to an increase in accidents."
✓ Grammatically correct
Science
Academia
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
60 human-written examples
This concludes the proof that NP ⊆ PCP[O log n), O(1)]!
end{aligned} (43) This concludes the proof.
This concludes the proof of Lemma 6. □.
This concludes the proof of Part (i).
This concludes the proof of the lemma.
This concludes the proof of Proposition 3.4.
This concludes the proof of the theorem.
This concludes the proof of assumption 1.
end{aligned} This concludes the proof.
This concludes the proof of (a).
This concludes the proof of this lemma.
Expert writing Tips
Best practice
Use "this concludes the proof" to clearly signal the end of a mathematical or logical argument, ensuring readers understand the demonstration is complete. Employ it strategically to mark closure and enhance clarity.
Common error
Avoid using "this concludes the proof" in contexts that are not related to mathematical or logical proofs. Overuse in casual writing can sound pretentious and out of place. Stick to using it within formal demonstrations or arguments.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this concludes the proof" serves as a declarative statement that marks the end of a logical or mathematical argument. Ludwig AI confirms its grammatical correctness and common usage. It signals closure and finality to the reasoning presented.
Frequent in
Science
65%
Academia
35%
Formal & Business
0%
Less common in
News & Media
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "this concludes the proof" is a grammatically correct and frequently used phrase to formally indicate the end of a mathematical or logical argument, as confirmed by Ludwig AI. Predominantly found in scientific and academic contexts, it serves to signal closure and clarity. While effective in its intended setting, overuse in informal contexts should be avoided. Consider alternatives like "therefore, the proof is complete" or "the proof is thus established" to suit different levels of formality. Ensure its appropriate application to maintain precision and avoid pretension.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
therefore, the proof is complete
Replaces the introductory phrase with a direct statement of completion and includes the connector 'therefore'.
the proof is thus established
Replaces "concludes" with "is thus established", offering a more formal tone.
hence, we have proven
Uses "hence" as a more concise connector indicating the completion of the proof.
in summary, the proof holds
Introduces a summary aspect while affirming the validity of the proof.
this validates the proof
Emphasizes validation rather than conclusion, suitable when confirming an existing proof.
the foregoing demonstrates the proof
Uses "the foregoing" to refer back to the prior argument, implying conclusion.
as shown above, the proof is valid
Refers explicitly to prior steps and affirms validity, rather than simply concluding.
we have thus achieved the proof
Highlights the achievement of the proof, suitable for emphasizing a significant result.
the demonstration is now complete
Replaces "proof" with "demonstration" and focuses on the state of being complete.
the analysis concludes the proof
Highlights analysis as a key step in the proof
FAQs
How can I use "this concludes the proof" in a sentence?
You can use "this concludes the proof" to signal the end of a mathematical or logical argument. For example, "After demonstrating each step rigorously, this concludes the proof of the theorem."
What are some alternatives to "this concludes the proof"?
Alternatives include "therefore, the proof is complete", "the proof is thus established", or "hence, we have proven", depending on the level of formality you want to convey.
When is it appropriate to use "this concludes the proof"?
It's appropriate to use "this concludes the proof" in formal settings such as academic papers, mathematical demonstrations, and logical arguments where you are presenting a rigorous proof. Avoid using it in informal contexts.
Is "this concludes the proof" the same as "QED"?
While both signal the end of a proof, "this concludes the proof" is a more descriptive statement, whereas QED (quod erat demonstrandum) is a Latin abbreviation traditionally used in mathematical proofs. The former is more accessible to a wider audience.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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