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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
unless it exists
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "unless it exists" is correct and usable in written English.
You can use it to indicate a condition that must be met for something to happen or be true, specifically when referring to the existence of something. Example: "You cannot proceed with the project unless it exists in the database."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(2)
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
3 human-written examples
Proponents of the loss of life account might also turn the tables on its critics, and argue as follows: nothing can be alive unless it exists, so if something ceases to exist it ceases to be alive, but to cease to be alive is to die.
Science
In the so-called ontological argument for the existence of God, St. Anselm of Canterbury (1033/34 1109) attempted to derive the significant conclusion that God exists from the tautological premise that God is the only perfect being together with the premise that no being can be perfect unless it exists.
Encyclopedias
On the second use, nothing can be a fact unless it exists, and so on the assumption that there are contingent facts, the predicate is non-rigid.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
"You don't come here unless you know it exists," said Linc Rose, who was at 2A, a bar on the corner of Second Avenue and Avenue A that stayed open through the storm.
News & Media
Sure, Google only launched its music search about a month ago and most people probably don't even know it exists unless they search for a song or artist like "Muse" on Google, and even then they wouldn't know there is a separate site because the playable song results appear right at the top of the regular search results.
News & Media
If you only delete it, your computer will still think it exists unless it is unregistered.
Wiki
Google's My Maps tool has long allowed anybody to create custom maps, but unless you knew it existed, chances are you wouldn't randomly stumble upon it.
News & Media
I mean, why else would we be rushing to deal with the problem unless it actually existed?
News & Media
Yes, it is working hard to improve its resource efficiency and reduce its carbon footprint, but unless it ceases to exist altogether, it is not physically possible to reduce its emissions to zero.
News & Media
America's Founding Fathers recognized that a State does not -- and cannot -- exist unless it upholds its claim to the monopoly on force.
News & Media
If Berlusconi was dedicated to the idea that "nothing exists unless it appears on television," Grillo has been able to create a major political movement entirely without television — indeed, he forbids members of his movement from appearing on TV talk shows.
News & Media
Expert writing Tips
Best practice
Use "unless it exists" to clearly state a prerequisite condition that involves the actual presence or reality of something. This is particularly useful in philosophical, scientific, or legal contexts where existence is a crucial factor.
Common error
Avoid using "unless it exists" when you actually mean "unless it is available". Existence refers to whether something has being, while availability refers to whether something can be accessed or used. For example, don't say 'You can't use the software unless it exists,' when you mean 'You can't use the software unless it is available for download'.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "unless it exists" functions as a conditional conjunction, introducing a condition that must be met for a particular statement to be true. It establishes a necessary condition related to the existence of something, similar to examples Ludwig shows involving God and death. If something is not real, then the statement is false.
Frequent in
Science
35%
News & Media
33%
Encyclopedias
32%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "unless it exists" is a grammatically sound and usable expression that introduces a necessary condition related to the presence or reality of something. Ludwig AI confirms its correct usage. It's most commonly found in philosophical, scientific, and news-related discussions. Be mindful to distinguish between 'existence' and 'availability' to ensure precise communication. As exemplified by Ludwig, "unless it exists" is a versatile tool for expressing conditional dependencies in various contexts.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
if it is not in existence
This alternative directly negates the existence of the subject, providing a more explicit condition.
except if it's in existence
This provides a direct exception based on the subject being in existence.
without its being present
This phrase emphasizes the absence or lack of presence as the condition.
in the absence of its existence
This version highlights the lack of existence as the determining factor.
given that it does not exist
This sets the non-existence of the subject as a given premise.
assuming it does not exist
This phrase introduces a hypothetical scenario where the subject's existence is negated.
unless it is a reality
This emphasizes the real or factual existence of the subject as the condition.
if it were nonexistent
This uses a subjunctive mood to express a counterfactual condition of non-existence.
should it not be present
This alternative uses more formal language to express a lack of presence.
barring its existence
This uses a more concise and formal expression to exclude the case where the subject exists.
FAQs
How can I rephrase "unless it exists" to sound more formal?
For a more formal tone, consider using phrases such as "in the absence of its existence" or "without its being present". These alternatives /s/in+the+absence+of+its+existence and /s/without+its+being+present emphasize the condition of non-existence in a more sophisticated manner.
What is the difference between "unless it exists" and "unless it is available"?
"Unless it exists" refers to the fundamental being or reality of something. "Unless it is available" /s/unless+it+is+available refers to whether something can be accessed or used. The former concerns ontology, while the latter concerns accessibility.
In what situations is it appropriate to use the phrase "unless it exists"?
The phrase "unless it exists" is appropriate when the very being or reality of something is a necessary condition for something else to occur or be true. This often arises in philosophical discussions, legal contexts, or when discussing abstract concepts.
What are some common synonyms for "unless it exists"?
Some synonyms for "unless it exists" include "if it is not in existence" /s/if+it+is+not+in+existence, "assuming it does not exist", or "if it were nonexistent". These alternatives offer different nuances while maintaining the core meaning of conditional non-existence.
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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