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
either assumption
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "either assumption" is correct and usable in written English.
It can be used when discussing two possible assumptions or scenarios, indicating that either one could be valid or applicable. Example: "In this analysis, we can proceed with either assumption regarding the market trends."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(4)
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
16 human-written examples
"An economist would say there had been an increased demand for exceptional people or a reduced supply but I don't think there is either assumption.
News & Media
Either assumption could prove false.
News & Media
Would either assumption directly provide an account of assertion in these terms?
Science
If either assumption (A5) or assumption (A6) holds, then for any, there exists such that.
You have it within your power to live on either assumption and perhaps, through various practices, to get yourself to believe one or the other.
Science
Here, the key role of assumptions (i) and (ii) is that under either assumption women's declining incentives to enter into a polygynous marriage, accompanied with the spread of human capital, will be reflected in marital decisions.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
Therefore, whenever model in Equation 1 is chosen, either assumptions (a) or (b) are supposed to hold, and the time-frequency (TF) representation considered is either magnitude or power spectrogram for (a) or power spectrogram only for (b).
In both interpretations either the assumption of line 4 or the assumption of line 5 holds which means that in either interpretation the defeasible inference to ∀xP x) ∨ ∀xQ x) goes through.
Science
While Howson and Urbach do not rely on either the assumption that agents will (or should) act in accordance with their degrees of belief or that they should be willing to accept either direction of a fair bet, they do assume that agents make evaluations of bets, which are tied to the concept of pragmatic value.
Science
Generally speaking, when either the assumption of normality or homoscedasticity or both are violated, highly inflated type I errors and false positives can arise, suggesting a non-robustness of parametric methods under these scenarios [ 9].
Science
Suppose that the symbol a satisfies either the assumptions of Theorem 5.1 or those of Theorem 5.2.
Expert writing Tips
Best practice
Use "either assumption" when you want to emphasize that only one of two possible assumptions needs to be true for a certain outcome or conclusion to hold.
Common error
Avoid using "either assumption" when more than two assumptions are under consideration. In such cases, consider using "any assumption" or "one of the assumptions" instead.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "either assumption" functions as a conjunction phrase specifying that one of two assumptions is sufficient. As shown by Ludwig AI, it sets a condition where the validity of one assumption out of two is enough to proceed or validate a statement.
Frequent in
Science
60%
News & Media
20%
Formal & Business
20%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "either assumption" is a conjunction phrase used to indicate that one of two assumptions is sufficient for a particular outcome. Ludwig AI analysis confirms its grammatical correctness and common usage, particularly in formal and scientific contexts. When writing, ensure the context involves exactly two assumptions and consider using alternatives like "either hypothesis" or "either premise" to refine your meaning. Avoiding this confusion will make your writing precise and effective.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
either hypothesis
Replaces "assumption" with "hypothesis", framing it as a testable idea.
either premise
Replaces "assumption" with "premise", framing it as a basis for reasoning.
either speculation
Replaces "assumption" with "speculation", implying a less certain basis.
either supposition
Replaces "assumption" with "supposition", suggesting something assumed to be true.
either suggestion
Substitutes "assumption" with "suggestion", indicating a proposal that may or may not be true.
either notion
Substitutes "assumption" with "notion", implying a general idea or belief.
either possibility
Substitutes "assumption" with "possibility", indicating one of two potential outcomes.
either theory
Substitutes "assumption" with "theory", framing it as a structured explanation.
either belief
Replaces "assumption" with "belief", implying a personal conviction.
either contention
Replaces "assumption" with "contention", framing it as a point of disagreement.
FAQs
How can I use "either assumption" in a sentence?
You can use "either assumption" to indicate that only one of two possible assumptions is needed for a particular result to be valid. For example, "We can proceed with the analysis under "either assumption" regarding market trends."
What phrases are similar to "either assumption"?
Alternatives include "either hypothesis", "either premise", or "either supposition". The best choice depends on the specific nuance you want to convey.
Is there a difference between "either assumption" and "any assumption"?
"Either assumption" implies a choice between two specific assumptions, whereas "any assumption" suggests that one of several assumptions is acceptable. The choice depends on the context and the number of valid assumptions.
When should I avoid using "either assumption"?
Avoid using "either assumption" if you're discussing more than two possible assumptions. In that case, "any of the assumptions" or "one of the assumptions" would be more appropriate.
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
4.1/5
Expert rating
Real-world application tested