that is indeed so

USAGE SUMMARY

The phrase "that is indeed so" is correct and usable in written English.
It can be used to affirm or agree with a statement or observation made by someone else. Example: "After reviewing the evidence, I must say that is indeed so; your analysis is spot on."

✓ Grammatically correct

Science

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

If that is indeed so, the authors should be explicit about it.

F1000Research

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

If that was indeed so, we do not regard it as a confounder in the interpretation of our findings, but rather as an example of one of the factors in medicine that may have an impact on how physicians present their cases.

BMC Family Practice

Peters did a shake move that was indeed not working so well.. .. and then he did another that did.

The New York Times - Magazine

A couple of good local shrimp crusted with kadayif (shredded phyllo), with a slightly overcooked scallop, some way overcooked shrimp and — according to the menu, though I could not find it — some crab, were served in an "ocean herbal broth" that was indeed green but was so bland that, blindfolded, I wouldn't have been able to guess a single ingredient.

The New York Times - Travel

That is indeed what happened subsequently, so what Sir Norman denies in public he boasts about in private conversations".

The Guardian - Sport

However, we will define so that is indeed always positive (see (14)).

EURASIP Journal on Information Security

The issue isn't the fact that there are already a number of VR experiences competing for a relatively small slice of the market (though that is, indeed, an issue), so much as the question of whether there's space for a standalone device, one that doesn't need a PC or a smartphone.

TechCrunch

We show that this is indeed so for all frames and Riesz sequences {eiλnx} studied so far, and we prove that we can always solve both problems in a certain "weak sense".

Journal of Functional Analysis

It can be seen that this is indeed so by visualising the top left node moved to the right of the top right node.

Wikipedia

Preliminary data from our laboratory have shown that this is indeed so (G Castro & BL Caputto, unpublished data).

Plosone

United had quite clearly decided that the best way to beat City was to press deep, and keep them as pinned into their own area as possible, so that was indeed the tactic they went with, and it worked.

Huffington Post

Expert writing Tips

Best practice

Use "that is indeed so" to succinctly confirm a statement or situation, adding a touch of formality. This phrase is particularly effective in professional or academic contexts where clarity and agreement are essential.

Common error

Avoid using "that is indeed so" too frequently in casual conversation. Its formal tone can sound stilted or unnatural in informal settings; opt for simpler alternatives like "that's right" or "exactly".

Linguistic Context

The phrase "that is indeed so" functions as an affirmative statement, expressing agreement or confirmation. Ludwig examples confirm its use in diverse contexts to validate a previous claim or assertion. This phrase emphasizes the speaker's concurrence with a prior statement.

Expression frequency: Uncommon

Frequent in

Science

40%

News & Media

40%

Wiki

20%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "that is indeed so" is a grammatically sound phrase used to express strong agreement or confirmation. Ludwig AI analysis shows it appearing most frequently in scientific, news, and wiki contexts, indicating a somewhat formal register. While grammatically correct, overuse in informal settings should be avoided, as it can sound unnatural. Consider alternatives like "that is certainly true" or "that is absolutely correct" for greater nuance. While less frequent than other agreement phrases, it remains a useful tool for clear and emphatic communication.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

that is certainly true

Replaces "indeed" with "certainly", emphasizing the truthfulness with a higher degree of confidence.

that is absolutely correct

Emphasizes correctness rather than a general truth, using "absolutely" to strengthen the affirmation.

that is quite right

Uses "quite right" to express agreement, implying a subtle nuance of mild surprise or acknowledgement.

that is definitely the case

Highlights that something is a fact, using "definitely" to stress the certainty.

that is undoubtedly so

Stresses the lack of doubt, using "undoubtedly" to indicate a very strong affirmation.

that is verifiably true

Focuses on the capacity of being proven as truth, more formal and fact-based

that is demonstrably the case

Emphasizes that something can be clearly shown or proven, suitable for formal contexts.

that is plainly evident

Highlights the obviousness of a statement, using "plainly evident" to express clarity.

that appears to be so

Indicates an observation or conclusion based on available evidence, suggesting less certainty than "that is indeed so".

that seems to be the situation

Offers a more tentative agreement, acknowledging a situation based on current understanding.

FAQs

What does "that is indeed so" mean?

The phrase "that is indeed so" is an emphatic way of agreeing with a statement or acknowledging a situation. It indicates strong affirmation or confirmation.

When is it appropriate to use "that is indeed so"?

It's best to use "that is indeed so" in more formal settings, such as academic discussions, professional communications, or when you want to add a touch of emphasis to your agreement. In casual conversation, simpler phrases might be more suitable.

What can I say instead of "that is indeed so"?

You can use alternatives like "that is certainly true", "that is absolutely correct", or "that is quite right" depending on the context.

Is "that is indeed so" grammatically correct?

Yes, "that is indeed so" is grammatically correct. The structure follows standard English grammar rules, and the phrase is used to express agreement or confirmation.