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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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proof was

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "proof was" is correct and usable in written English.
It can be used in contexts where you are discussing evidence or verification of something that has occurred in the past. Example: "The proof was clear in the results of the experiment, demonstrating the hypothesis was correct."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Proof was not needed.

News & Media

The New Yorker

The proof was forthcoming.

News & Media

The New Yorker

That proof was not supplied.

News & Media

The New York Times

His proof was from Hegel.

News & Media

The New Yorker

The proof was 98 stitches.

News & Media

The New York Times

More worrying proof was available.

News & Media

The Guardian

The proof was in the first set.

By these standards, Perelman's proof was unorthodox.

News & Media

The New Yorker

The proof was in the ducks.

News & Media

The New York Times

However, no such proof was provided.

The proof was in her semifinal victory.

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Expert writing Tips

Best practice

When using "proof was", ensure the sentence clearly indicates what the proof pertained to, avoiding ambiguity. For example, specify "The proof was in the pudding" rather than simply "The proof was".

Common error

Avoid using "proof was" without explicitly stating what the "proof" refers to. Vague references can confuse the reader. Instead of "Proof was evident", specify "The proof of his innocence was evident".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "proof was" functions as a declaration of the existence of evidence or verification at a specific time. The phrase introduces the idea that something had been substantiated. According to Ludwig AI, the phrase is considered grammatically correct.

Expression frequency: Very common

Frequent in

News & Media

62%

Science

20%

Encyclopedias

7%

Less common in

Wiki

4%

Formal & Business

3%

Reference

2%

Ludwig's WRAP-UP

In summary, the phrase "proof was" serves to confirm the past existence of evidence or verification. Ludwig AI confirms that it is grammatically correct and commonly found in various contexts. While versatile, the phrase is most frequently encountered in news and media sources. For more formal settings, consider alternatives like "evidence existed" or "verification occurred". Ensuring clarity by specifying what the "proof" refers to prevents ambiguity and strengthens the impact of your writing.

FAQs

How can I use "proof was" in a sentence?

Use "proof was" to indicate that evidence or verification existed to support a claim or statement. For instance, "The proof was in the data, which clearly showed a correlation".

What's a more formal alternative to "proof was"?

A more formal alternative could be "evidence existed" or "verification occurred". These options lend a more serious and objective tone, suitable for academic or professional writing.

What does it mean when someone says "the proof was in the pudding"?

The idiom "the proof was in the pudding" means that the real value or quality of something can only be judged when it's put to its intended use or tested. It suggests that "results matter" more than promises or plans.

Is "proof was sufficient" different than "the proof was sufficient"?

Yes, there is a slight difference. "Proof was sufficient" implies that, in general, proof existed and it met the required threshold. "The proof was sufficient" suggests that a specific, previously mentioned proof met the threshold.

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Source & Trust

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Authority and reliability

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Expert rating

Real-world application tested

Most frequent sentences: