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
so indeed
Grammar usage guide and real-world examplesUSAGE SUMMARY
'so indeed' is correct and usable in written English.
It can be used to express agreement or concession with something previously mentioned. For example: "The project was a great success; so indeed it was".
✓ Grammatically correct
News & Media
Science
Wiki
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
So, indeed, might some tourists.
News & Media
So indeed was the tartan kilt.
News & Media
So indeed it is, and increasingly.
News & Media
So, indeed, are some of his own officials and colleagues.
News & Media
So indeed every agreement must include the following: 1.
News & Media
And so indeed had the planner, purged by the Nazis.
News & Media
So, indeed, talk about why we are obsessed with thinness.
News & Media
They were doomed, and so indeed was the palace as a true royal residence.
News & Media
Keynes' impregnable self-assurance is an Eton trait, so indeed is his arrogance.
News & Media
So indeed, many tours were canceled in the fall and there are fewer departures this year.
News & Media
So indeed did Pope John Paul II during his visit in 2001.
News & Media
Expert writing Tips
Best practice
Use "so indeed" to reinforce a previous statement or to express agreement with a prior point, creating a sense of emphasis and confirmation in your writing.
Common error
Avoid using "so indeed" excessively in informal conversations or casual writing. While grammatically correct, its formal tone can sound stilted or unnatural in everyday speech.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
So indeed functions as an adverbial phrase used to emphasize or affirm a previous statement. According to Ludwig, this phrase is grammatically correct and appropriate for use in written English. It adds a tone of agreement or concession to the preceding point.
Frequent in
News & Media
78%
Science
15%
Wiki
3%
Less common in
Formal & Business
2%
Encyclopedias
1%
Academia
1%
Ludwig's WRAP-UP
In summary, "so indeed" is a grammatically sound and versatile phrase used to emphasize agreement or confirmation. According to Ludwig, it is correct and appropriate in written English. While most common in news and media, it also appears in scientific and wiki contexts. To prevent incorrect usage, remember that while grammatically correct, it’s considered a formal expression and might sound unnatural in casual language. Alternatives like "indeed it is" or "that's right actually" may be more appropriate in informal settings.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
indeed it is
Reorders the phrase for a slightly different emphasis, focusing on the affirmation.
absolutely that's true
Uses "absolutely" for strong agreement and confirms the truth.
therefore in fact
Replaces "so" with "therefore", emphasizing the logical consequence.
thus in reality
Uses "thus" to highlight the result and "in reality" to stress the truth.
consequently in truth
Emphasizes the consequence and the factual nature of the statement.
accordingly as a matter of fact
Highlights the accordance with something previously stated, and the factual basis.
hence in effect
Shows a logical deduction and the practical result.
that's right actually
More informal affirmation with an element of surprise or confirmation.
yes in reality
Direct affirmation with a grounding in reality.
surely that's the case
Expresses confidence and agreement with a situation.
FAQs
How can I use "so indeed" in a sentence?
"So indeed" can be used to affirm or emphasize a previous statement. For example: "The economy is improving; so indeed, businesses are investing again."
What are some alternatives to "so indeed"?
Alternatives to "so indeed" include "indeed it is", "that's right actually", or "absolutely that's true", depending on the context and level of formality.
Is it ever incorrect to use "so indeed"?
While grammatically correct, "so indeed" might sound overly formal in casual conversation. Consider the tone and audience when deciding whether to use this phrase.
What is the difference between "so indeed" and "therefore"?
"So indeed" is used to affirm something already stated, whereas "therefore" indicates a logical consequence. While they can overlap, "so indeed" emphasizes agreement more than causality. You can also use "therefore in fact" as an alternative to "so indeed".
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested