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
a main assumption
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a main assumption" is correct and usable in written English.
It can be used when discussing a fundamental belief or premise that underlies an argument, theory, or analysis. Example: "In our research, we identified a main assumption that influenced our findings significantly."
✓ Grammatically correct
Science
Alternative expressions(20)
a primary assumption
a key assumption
central premise
key presupposition
core tenet
a central premise
a core tenet
a fundamental principle
a fundamental assumption
a main hypothesis
a major assumption
a basic assumption
a core assumption
a greater assumption
a plausible assumption
a simplistic assumption
a fatal assumption
a large assumption
a main thoroughfare
a common assumption
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
7 human-written examples
In the most of previous data reconciliation DR) studies, process data were conventionally characterized by normal Gaussian distribution, so the optimality/validity of DR estimator is implicitly based on a main assumption that errors follow normal Gaussian distribution.
Science
A main assumption is made, that species density, i.e. the number of plant species per unit area, could be used as a good indicator to estimate spatial biodiversity changes due to land-cover changes.
Science
This is particularly important because a main assumption and theoretical advantage with generic outcome measures is the possibility to make valid comparisons across patient groups.
Thus, a main assumption within this school of thought is that fashionable management ideas primarily lead to temporary discourse within organisations, which often remains decoupled from action [ 43– 43].
Science
A main assumption of this model is however that quantitative resistance is a way for the host to limit the deleterious effects induced by the parasite but that it does not act directly on transmission.
Science
We demonstrate here that the amount of nonspecific binding exhibited by MM oligos is dependent upon the individual nucleotide substitutions they incorporate, and therefore not necessarily equivalent to that experienced by the PM probe – this finding undercuts a main assumption underlying the use of MM probes.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
However, as previously emphasized by several authors [ 32, 23], the use of weak instruments may lead to large standard errors in the IV estimates or even bias in the IV estimates if the weakness is associated with a small sample size or a violation of the main assumption.
It appears that curation errors or ambiguities may be a more significant source of wrongly inferred associations than our main assumption that a bait with several preys in a single publication represents a single unit.
Nonetheless, while MR may be a useful tool to examine POE, its underlying main assumption of a strong association between the utilized genetic variants and the examined disorder is challenging to meet for ADHD, as, to date, no genome-wide association was reported for this condition.
Consequently, our main assumption is a global distribution of word probabilities; we do not need to fit a large number of parameters to the data, in contrast to parametric models proposed to describe the bursty nature or topicality of text [25] [27].
Science
We are now in a position to describe our main assumption.
Science
Expert writing Tips
Best practice
When introducing "a main assumption", clearly state it and explain its relevance to your argument or analysis. Provide justification or evidence to support its validity whenever possible.
Common error
Avoid presenting "a main assumption" without any supporting evidence or reasoning. Readers need to understand why the assumption is reasonable and how it underpins your conclusions.
Source & Trust
81%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a main assumption" functions as a noun phrase that identifies a key underlying belief or premise. It is used to introduce a foundational element upon which an argument, theory, or analysis is built. Ludwig AI examples show it being used in a variety of scientific and theoretical contexts.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "a main assumption" is a grammatically correct and useful phrase for introducing a fundamental premise or belief in an argument or analysis. As Ludwig AI shows, it is most commonly found in scientific and academic writing, where it serves to establish a shared understanding of a key underlying principle. While the phrase is not exceedingly common, its clear and direct nature makes it an effective way to set the stage for further discussion or analysis. It's important to clearly state and validate any main assumptions to ensure the strength and credibility of your arguments.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a central premise
Focuses on the foundational aspect of the assumption, using 'premise' to highlight its role as a basis for reasoning.
a key presupposition
Emphasizes the idea that the assumption is something taken for granted beforehand.
a core tenet
Highlights the fundamental nature of the assumption, framing it as a principle or belief.
a fundamental principle
Shifts the focus to the foundational quality of the assumption, relating it to a guiding rule or truth.
a basic postulate
Frames the assumption as a foundational statement accepted as true without proof.
an underlying axiom
Highlights the self-evident or universally recognized nature of the assumption.
a primary supposition
Emphasizes the act of assuming something to be true, focusing on its role as a starting point.
a chief belief
Replaces 'assumption' with 'belief', highlighting the conviction aspect of the premise.
a cardinal hypothesis
Presents the assumption as a testable proposition, framing it within a scientific context.
an essential premiss
Uses the less common spelling 'premiss' while retaining the core meaning of a foundational statement.
FAQs
How can I effectively introduce "a main assumption" in my writing?
Start by explicitly stating the assumption and then provide context or reasoning to support its validity. For example, "A "main assumption" of this study is that... This assumption is based on prior research and theoretical considerations."
What are some alternative ways to phrase "a main assumption"?
You can use phrases like "a "central premise"", "a "key presupposition"", or "a "core tenet"" to convey a similar meaning.
Is it always necessary to explicitly state "a main assumption"?
While not always mandatory, explicitly stating your assumptions enhances transparency and allows readers to critically evaluate your argument. It's particularly important when the assumption is not widely accepted or could be contested.
What should I do if "a main assumption" is challenged or proven false?
Acknowledge the challenge and assess the impact on your overall argument. Depending on the severity, you may need to revise your conclusions or explore alternative approaches that do not rely on the invalidated assumption.
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
4.3/5
Expert rating
Real-world application tested