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
lets assume
Grammar usage guide and real-world examplesUSAGE SUMMARY
"let's assume" is a correct and usable phrase in written English.
You can use it when introducing a hypothetical scenario or when presenting a theory. Example: Let's assume the power outage is due to a storm that passed through the area last night.
✓ Grammatically correct
Science
News & Media
Wiki
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
26 human-written examples
I would just add that I believe that people who survive a trauma or have a powerfully disruptive experience (so, all living people, lets assume) can often feel that a part of themselves is trapped in amber at that age, even as clock time moves relentlessly onward.
News & Media
First, lets assume that (mathcal {R}) is symmetric, then (gx_0mathcal {R}Tx_0).
Science
To make these performance indicators clear, lets assume a generic classification task.
Of the 150 passengers expected to board the flight, lets assume that 20 are eligible for upgrade.
Science
Now lets assume that you recognize someone by his/her username, picture or both, what now?
News & Media
Cost – This is a difficult one, but lets assume no more than £100 a month.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
34 human-written examples
Let assume (pq<1).
Science
Let assume the contrary.
Let Assume that.
Let Assume the set.
Let assume now the second reading of the theory.
Science
Expert writing Tips
Best practice
Consider the implications of your assumption and how it might affect your argument or analysis. Acknowledge any limitations or potential biases introduced by the assumption.
Common error
Avoid using "lets assume" without explicitly stating the assumption. Failing to do so can lead to confusion and undermine the credibility of your argument.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "lets assume" functions as a discourse marker to introduce a hypothetical scenario or a premise for reasoning. As Ludwig AI confirms, this phrase is a valid and usable way to frame assumptions. Examples from Ludwig show its usage across diverse contexts.
Frequent in
Science
30%
News & Media
43%
Wiki
10%
Less common in
Formal & Business
10%
Encyclopedias
5%
Academia
2%
Ludwig's WRAP-UP
In summary, "lets assume" is a frequently used phrase to introduce hypothetical scenarios across a spectrum of writing genres, from science and news to informal wikis. As Ludwig AI states, it is grammatically correct and can be used when introducing a hypothetical scenario. Our analysis, supported by various examples, reveals its versatility and consistent application in setting up premises for arguments or discussions. While generally neutral, remember to always clarify your assumptions to maintain clarity. Explore the suggested alternatives to diversify your writing and prevent repetition.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Assuming that
This is a more concise and direct way to introduce an assumption.
Suppose we assume
This alternative is more formal and emphasizes the act of supposing.
Let's take for granted
This implies accepting something as true without proof or questioning.
For the sake of argument, let's say
This alternative highlights that the assumption is made for the purpose of discussion.
Let us presume
This is a more formal and less common way to express an assumption.
If we hypothesize
This alternative is suitable for scientific or research contexts.
Consider this scenario
This shifts the focus to a hypothetical situation rather than a direct assumption.
Imagine that
This emphasizes the act of visualizing a hypothetical situation.
For the purpose of this discussion
This frames the assumption within a specific context of discussion or analysis.
Suppose, for instance
This introduces a specific instance as an example.
FAQs
How to use "lets assume" in a sentence?
You can use "lets assume" to introduce a hypothetical scenario or condition. For example, "Lets assume that the economy improves next year; how would that affect our investment strategy?"
What can I say instead of "lets assume"?
You can use alternatives like "assuming that", "suppose we assume", or "if we hypothesize" depending on the context.
When is it appropriate to use "lets assume" in writing?
It's appropriate to use "lets assume" when you want to explore a hypothetical situation, simplify a complex problem, or make a point based on certain conditions. It's commonly used in academic, business, and general writing.
Is "lets assume" formal or informal?
"Lets assume" is generally considered neutral in tone. While it's suitable for many contexts, more formal alternatives like "assuming that" or "let us presume" might be preferred in highly formal settings.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested