proof of principle

USAGE SUMMARY

The phrase "proof of principle" is correct and usable in written English.
You can use it to refer to something that confirms that an idea or theory is valid or useful. For example, "The scientists' success in creating a successful vaccine candidate was a proof of principle that their research had been accurate."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

35 human-written examples

It is also a proof of principle.

The Economist

This is a proof of principle study".

The New York Times

It's a proof of principle.

The Guardian

"Proof of principle for bioterrorism,'' Coffin called it.

The New Yorker

That was the proof of principle done with microwaves.

The New York Times

Dr. Brewer sees it as a proof of principle.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

25 human-written examples

That's a useful proof-of-principle demonstration.

MIT Technology Review

S.W.O. and H.Z. did initial proof-of-principle studies.

Nature

So this is an important proof-of-principle step.

MIT Technology Review

Valproic acid (VPA) is highlighted as a proof-of-principle.

Stanford University

"It's a great proof-of-principle," he added.

Stanford University

Expert writing Tips

Best practice

When using "proof of principle", clearly articulate the specific principle being demonstrated and the evidence that supports it.

Common error

Avoid presenting a "proof of principle" as a fully developed solution. Emphasize that it's an initial validation, not a finished product.

Linguistic Context

The phrase "proof of principle" functions as a noun phrase, typically serving as a subject complement or an object of a preposition. It identifies an initial validation of a concept, aligning with Ludwig AI's assessment of grammatical correctness.

Expression frequency: Very common

Frequent in

Science

36%

News & Media

32%

Academia

18%

Less common in

Formal & Business

14%

Ludwig's WRAP-UP

In summary, "proof of principle" is a noun phrase used to describe the initial validation of a concept or method. Ludwig AI confirms its grammatical correctness and its frequent use across various domains, particularly in science, news, and academia. While "proof of concept" is a very similar and frequently interchangeable phrase, understanding the nuances of phrases like "feasibility demonstration" and "validation of concept" can enrich your writing and convey more precise meanings. Remember to use the expression accurately, particularly to avoid overstating the implications of a preliminary validation. Top authoritative sources like MIT Technology Review and The New York Times often employ this phrase.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

proof of concept

A very similar phrase focusing on demonstrating the feasibility of an idea, often used interchangeably.

validation of concept

Highlights the act of confirming the validity or correctness of an idea.

demonstration of viability

Highlights the ability of something to succeed or work effectively.

feasibility demonstration

Focuses on showing that something is possible to do, emphasizing practicality.

practical demonstration

Focuses on showcasing real-world applicability.

experimental confirmation

Emphasizes that the validity is confirmed through experimental study.

experimental verification

Emphasizes confirmation through experimentation.

successful test case

Highlights a specific instance where a concept was proven effective.

working model

Implies a functional prototype that proves a concept.

proof of existence

Shows that something exists or is real, particularly in theoretical contexts.

FAQs

How is "proof of principle" typically used in a research context?

In research, "proof of principle" indicates an initial study or experiment demonstrating that a concept or method is feasible. It's often a preliminary step before more extensive research.

What is the difference between "proof of concept" and "proof of principle"?

While often used interchangeably, "proof of concept" typically focuses on demonstrating feasibility, while "proof of principle" emphasizes validating the underlying theory or scientific basis. Sometimes, "validation of concept" could be used.

When is it appropriate to use the term "proof of principle" in a scientific paper?

Use "proof of principle" when you have preliminary evidence that supports a new idea or method. Be sure to clearly state the limitations of the study and the need for further research.

What are some alternatives to "proof of principle" that I can use in my writing?

Depending on the context, you can use alternatives such as "feasibility demonstration", "experimental verification", or "demonstration of viability".