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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
as sole source as
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as sole source as" is not correct in English and does not convey a clear meaning.
It seems to be an attempt to express exclusivity or singularity in sourcing, but the structure is flawed. Example: "The report identifies the supplier as the sole source of the materials needed for the project."
⚠ May contain grammatical issues
Science
News & Media
Formal & Business
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
1 human-written examples
These "test alleles" were assayed for their ability to support viability as the sole SMC1 or SMC3 as sole source as follows.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Arthrobacter sp. strain Rue61a is unable to grow with taurine (2-aminoethanesulfonate) as sole carbon source or as sole source of nitrogen, but taurine supports growth when supplemented as sole sulfur source (Table 2).
Science
Methylotrophs are microorganisms able to grow on reduced C1 compounds such as methane and methanol as sole source of carbon and energy.
Science
The bacterium is able to use porcine transferrin as well as haem proteins as sole sources of iron. A. pleuropneumoniae genes known to be involved in iron uptake are the porcine transferrin specific outer membrane (OM) proteins, tbpA and tbpB, the co-transcribed tonB-exbB exbD complex [ 21- 23], and the second tonB system, designated exbB2- exbD2- tonB2 [ 24].
Science
During cultivation with gluconate as sole carbon source as well as in presence of gluconate plus TDP, similar growth behavior of cells of R. eutropha H16 was observed.
This strain was able to grow in soluble starch as sole carbon source as good as the strain expressing the glucoamylase alone (Fig. 3), since no statistical significance was found when comparing either growth rate or final biomass between JMY5017 and JMY5083.
Science
Most patients using medicinal herbs relied on the advice of relatives and friends as their sole source of information, as were caregivers of children in a US study [ 19].
Reasons for this have been catabolite repression when producing the proteins in defined media with glucose as the sole carbon source, as well as the lack of an inducible expression system that allows controlled production of LPMOs that are correctly processed during translocation to the periplasmic space.
Science
There was also a homolog present in SAG to a hyaluronidase precursor protein (HylA) that provides the ability to survive on host hyaluronic acid as a sole carbon source, as well as aiding in bacterial spreading by allowing for detachment from biofilms [ 27].
Science
In terms of individual household income diversity, 30% of households relied on livestock as their sole source of income as shown in Figure 4.
Science
At the beginning of Skáldskaparmál, a partially euhemerized account is given of Ægir visiting the gods in Asgard and shimmering swords are brought out and used as their sole source of light as they drink.
Wiki
Expert writing Tips
Best practice
When aiming to express that something is the only provider, use the phrase "as the sole source". This phrasing is grammatically sound and widely understood.
Common error
Avoid using the redundant phrase "as sole source as". Instead, opt for clearer and more concise phrasing such as "as the sole source" or "as the only source."
Source & Trust
81%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as sole source as" attempts to function as an adverbial phrase modifying a verb or adjective, indicating the exclusivity or singularity of a source. However, as Ludwig AI points out, this construction is grammatically incorrect.
Frequent in
Science
33%
News & Media
33%
Formal & Business
33%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "as sole source as" is grammatically incorrect and rarely used. As Ludwig AI remarks, this phrase is not correct English and does not convey a clear meaning. When intending to convey that something originates exclusively from one place, it is better to use phrases like "as the sole source", "as the only source", or other similar constructions that avoid the redundant second "as". Although examples can be found in scientific literature, the usage is questionable and should be avoided in favor of clearer alternatives.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
as the sole source
Omits the second 'as', resulting in a grammatically correct and common phrase.
as the only source
Replaces 'sole' with 'only', providing a synonymous and clearer expression.
as the exclusive source
Uses 'exclusive' instead of 'sole', emphasizing that there are no other sources.
as the single source
Replaces 'sole' with 'single', implying uniqueness and singularity.
being the sole provider
Shifts the structure to focus on the act of providing and uses 'sole' to describe the extent.
being the sole supplier
Focuses on the act of supplying and uses 'sole' to describe the extent.
as its only origin
Uses the phrase to describe the origin, using 'only' to emphasize that there are no other origins.
as its primary source
Specifies that it's the most important source, though not necessarily the only one.
as the main source
Highlights that it's the main source, but others may exist.
as the essential source
Indicates the source is critical or indispensable.
FAQs
What is the correct way to say "as sole source as"?
The correct and more common way to express this idea is "as the sole source". The additional "as" is redundant and grammatically incorrect.
What does "as sole source as" mean?
The phrase "as sole source as" is grammatically incorrect but it seems to try to emphasize that something is the only or exclusive provider of something. A correct way to express the same idea is "as the sole source".
What can I say instead of "as sole source as"?
You can use alternatives like "as the only source", "as the exclusive source", or "being the sole provider", depending on the context.
Is "as sole source as" grammatically correct?
No, "as sole source as" is grammatically incorrect. It's better to use "as the sole source".
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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
81%
Authority and reliability
1.8/5
Expert rating
Real-world application tested