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
deduce that
Grammar usage guide and real-world examplesUSAGE SUMMARY
"deduce that" is correct and usable in written English.
You can use it when you want to draw a logical conclusion or inference based on information or evidence provided. For example: After examining all the evidence, I deduce that the suspect is responsible for the theft.
✓ Grammatically correct
Science
News & Media
Academia
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
60 human-written examples
we deduce that is continuous.
We can deduce that (3.4).
Hence, we deduce that ∥ A x ∥ ≤ ρ.
If we deduce that is completely continuous.
It is easy to deduce that (1.6).
Similarly, one can deduce that (2.7).
Then, we deduce that Λ is complete.
Then we deduce that desired result.
Science
From here we can deduce that (4.11).
From this, one can deduce that spacetime is curved.
Wiki
It is reasonable to deduce that.
News & Media
Expert writing Tips
Best practice
Ensure that the conclusion you're deducing is directly supported by the information you've presented to maintain credibility.
Common error
Avoid using "deduce that" when the conclusion is speculative or not firmly supported by the evidence. Using it inappropriately can weaken your argument.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "deduce that" functions as a verb phrase that introduces a logical conclusion or inference. It signals that the speaker or writer has arrived at a particular understanding based on available information or evidence, according to Ludwig.
Frequent in
Science
67%
Academia
10%
News & Media
8%
Less common in
Wiki
3%
Formal & Business
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "deduce that" is a versatile phrase used to introduce a logical conclusion based on presented evidence. It's grammatically sound and primarily found in academic, scientific, and news contexts, as confirmed by Ludwig. While "deduce that" is generally suitable for formal settings, it's important to ensure your conclusion is well-supported by the information provided to maintain credibility. Remember to use related phrases like "infer that" or "conclude that" for slight variations in meaning. Ludwig's analysis validates the correctness and usability of this phrase in written English.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
infer that
Focuses on drawing a conclusion from evidence or reasoning; very similar in meaning.
conclude that
Implies reaching a final judgment or decision based on given information.
gather that
Suggests collecting information to form an understanding or conclusion.
it follows that
Indicates a logical consequence or result of something.
draw the inference that
Focuses on the act of drawing a logical conclusion from the information available.
understand that
Emphasizes comprehension leading to a certain belief or awareness.
reason that
Emphasizes the mental process of drawing a conclusion.
ascertain that
Highlights the act of finding something out for certain.
it is reasonable to assume that
Suggests a logical assumption based on the available facts.
take it that
Indicates an assumption based on available information, often less formal.
FAQs
How do I use "deduce that" in a sentence?
Use "deduce that" to introduce a conclusion you've reached based on evidence or reasoning. For example, "After analyzing the data, we "deduce that" the hypothesis is correct."
What are some alternatives to "deduce that"?
You can use alternatives like "infer that", "conclude that", or "gather that" depending on the specific nuance you want to convey.
Is "deduce that" formal or informal?
"Deduce that" is generally considered a neutral to formal phrase, suitable for academic, professional, and news contexts. It is more formal than simply "think that" or "guess that".
What's the difference between "deduce that" and "assume that"?
"Deduce that" implies a conclusion based on evidence, while "assume that" implies a belief taken for granted without proof. Deduction relies on logical reasoning, while assumption relies on presumption.
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
4.5/5
Expert rating
Real-world application tested