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
Supposing that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Supposing that" is correct and usable in written English.
It can be used to introduce a hypothetical situation or condition. Example: "Supposing that we had unlimited resources, we could complete the project in half the time."
✓ Grammatically correct
Science
News & Media
Alternative expressions(20)
assuming that
given that
if we assume that
presuming that
on the assumption that
provided that
in the event that
considering that
in case that
on condition that
Assuming that
on the condition that
On the condition that
If only
analysed on the assumption
so long as
predicated on the belief
using that
Relying on the idea
In the event that
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
59 human-written examples
Supposing that happens, where does that leave us?
News & Media
Supposing that was true, Haggis said, why hadn't Miscavige stopped it?
News & Media
Supposing that, for example, the last subset of is complete, we conclude that when for some.
Supposing that Y is an arbitrary function of x1 and x2, so Y = f x1, x2).
Supposing that matrix ( {{partial g} mathord{left/ {vphantom {{partial g} {partial y}}} right.
Supposing that A and B are the sending and receiving ends of power system, respectively.
Supposing that gene A interacted with m genes, we defined the expression difference of interacting genes (EDI) as follows.
Science
We begin by supposing that has two fixed points.
I will first discuss three reasons for supposing that physicalism is not true.
Science
In supposing that void exists, the atomists deliberately embraced an apparent contradiction, claiming that 'what is not' exists.
Science
What reasons are given for supposing that philosophy of language is ill suited to achieving feminist ends?
Science
Expert writing Tips
Best practice
When using "supposing that", ensure the hypothetical situation is clearly defined to avoid ambiguity. For example, "Supposing that the weather improves, we will proceed with the outdoor event."
Common error
Avoid using "supposing that" in highly informal contexts. While grammatically correct, it can sound somewhat stilted compared to simpler alternatives like "if" or "assuming".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
"Supposing that" functions as a conjunction introducing a hypothetical or conditional clause. It sets up a scenario for consideration, similar to 'if'. Ludwig confirms this usage is grammatically correct and common across various contexts.
Frequent in
Science
48%
News & Media
38%
Encyclopedias
5%
Less common in
Formal & Business
4%
Reference
3%
Wiki
2%
Ludwig's WRAP-UP
In summary, the phrase "supposing that" is a grammatically sound and commonly used conjunction to introduce hypothetical scenarios. Ludwig confirms its correct usage across diverse contexts, including science, news, and philosophical discourse. It functions to set up a condition for consideration, allowing for exploration of potential outcomes. While appropriate for neutral to formal registers, simpler alternatives like "if" might be preferable in informal settings. Understanding its function and appropriate contexts ensures effective and clear communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
assuming that
This alternative is a direct synonym, often used interchangeably but can imply a slightly stronger belief in the premise.
presuming that
Similar to "assuming that" but can imply a slightly weaker belief in the premise.
on the assumption that
This alternative is more formal and explicitly states the premise as an assumption.
if we assume that
This alternative directly frames the statement as an assumption being made.
given that
This alternative implies the premise is already known or accepted to some extent.
provided that
This alternative indicates that the premise is a necessary condition.
in the event that
This alternative is more formal and emphasizes the possibility of the condition occurring.
considering that
This alternative suggests the premise should be taken into account when making a judgment.
in case that
Similar to "in the event that" but slightly less formal.
on condition that
This alternative is more formal and emphasizes the binding nature of the condition.
FAQs
How can I use "supposing that" in a sentence?
"Supposing that" introduces a hypothetical situation or condition. For example: "Supposing that we had more time, we could explore other options."
What can I say instead of "supposing that"?
You can use alternatives like "assuming that", "given that", or "if we assume that" depending on the context.
Is it more formal to say "supposing that" or "if"?
"Supposing that" tends to be slightly more formal than a simple "if". Use "supposing that" in academic or professional writing for a more sophisticated tone.
What's the difference between "supposing that" and "assuming that"?
While both introduce a hypothetical, "assuming that" often implies a stronger belief in the premise, whereas "supposing that" can be more exploratory or speculative.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested