assumption is invalid

USAGE SUMMARY

The phrase "assumption is invalid" is correct and usable in written English.
You can use it when discussing the validity of a premise or belief in a logical argument or analysis. Example: "In this case, the assumption is invalid because it does not take into account the new evidence presented."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

23 human-written examples

Cai and colleagues' breakthrough comes from the realization that this fundamental assumption is invalid.

Nature

In this situation, the typical monotonicity assumption is invalid and may be quite misleading.

Journal of Statistical Planning and Inference

However, this assumption is invalid when mutations are not rare in a whole population.

Journal of Theoretical Biology

It's quite fair to raise these criticisms because if a method relies on an assumption, and the assumption is invalid, then the results may be invalid too.

The Guardian

Our results demonstrate that this assumption is invalid in general.

Advanced Structural and Chemical Imaging

Thus our assumption is invalid and (2.10) holds.

Boundary Value Problems

Human-verified similar examples from authoritative sources

Similar Expressions

37 human-written examples

In cases where this assumption was invalid, only kcat is reported.

Biochemistry

Also, we assumed that the data were MAR and if this assumption was invalid, we may not have been successful in adjusting for nonresponse.

BMC Medical Research Methodology

That this assumption was invalid was evident already in early works on dietary restriction, when Will and McCay [ 18] reported that the heat production per kg body weight in the food-restricted rat cohort was higher rather than lower than in the control.

Aging

On the other hand, when no model is retained after screening, at least one of the underlying assumptions is invalid.

Plosone

However, in real chemical and biological processes, these assumptions are invalid because of their dynamic and nonlinear characteristics.

Chemical Engineering Science

Expert writing Tips

Best practice

When using "assumption is invalid", clearly state the assumption being questioned and provide evidence or reasoning for its invalidity. This ensures clarity and strengthens your argument.

Common error

Avoid assuming that because one assumption is invalid, the entire argument or conclusion is necessarily false. Instead, address how the invalid assumption impacts specific parts of the analysis or conclusion.

Linguistic Context

The phrase "assumption is invalid" functions as a declarative statement, used to indicate that a particular assumption is not valid or true. Ludwig confirms that the phrase is correct and usable in written English.

Expression frequency: Very common

Frequent in

Science

84%

News & Media

8%

Academia

4%

Less common in

Formal & Business

4%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "assumption is invalid" is a grammatically correct and commonly used expression to denote that a premise or belief is not true or does not hold. Ludwig confirms its validity. Its usage is most frequent in scientific and academic contexts, where critical evaluation and logical reasoning are paramount. When employing this phrase, clarity is key: specify the invalidated assumption and provide supporting evidence. While declaring an assumption as invalid challenges its foundation, it does not automatically negate the entire conclusion; instead, it calls for a re-evaluation of the affected elements.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

assumption is incorrect

Replaces "invalid" with "incorrect", suggesting a factual error rather than a logical flaw; slightly less formal.

assumption is false

Substitutes "invalid" with "false", emphasizing the untruth of the assumption; maintains a similar level of formality.

assumption is flawed

Uses "flawed" instead of "invalid", highlighting a defect in the assumption; slightly less formal.

premise is untenable

Replaces the entire phrase with a more formal and emphatic statement that the foundational premise cannot be defended.

assumption does not hold

Rephrases the idea to focus on the assumption's failure to remain true under scrutiny.

assumption is unsupported

Indicates that the assumption lacks evidence, shifting the focus to evidentiary support.

basis is unsound

Shifts focus to the foundation or basis being unreliable or weak rather than the assumption itself.

argument is invalid

Focuses on the invalidity of the argument rather than the assumption, shifting perspective slightly.

calculation is incorrect

Focuses specifically on a calculation being incorrect, not an assumption; narrows the scope.

reasoning is deficient

Emphasizes that the reasoning behind something is lacking or flawed rather than focusing on the initial assumption.

FAQs

How to use "assumption is invalid" in a sentence?

Use "assumption is invalid" to point out that a particular assumption being made is not correct or does not hold true. For example: "The model's accuracy decreases significantly when the assumption is invalid."

What can I say instead of "assumption is invalid"?

You can use alternatives like "assumption is incorrect", "assumption is false", or "premise is untenable" depending on the context.

Is it better to say "assumption is invalid" or "assumption is incorrect"?

Both "assumption is invalid" and "assumption is incorrect" are acceptable. "Invalid" suggests the assumption is logically flawed or doesn't hold under certain conditions, while "incorrect" implies a factual error. Choose the term that best fits the nature of the problem with the assumption.

What does it mean when an assumption is described as "invalid"?

When an assumption is "invalid", it means that the underlying condition or belief is not true or does not hold, and any conclusions or predictions based on that assumption are likely to be flawed or inaccurate.