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Discover LudwigThe phrase "a existed" is not correct and usable in written English.
It appears to be a grammatical error, as "a" is an article that should not precede the verb "existed."
Example: "There existed a time when people relied solely on handwritten letters."
Alternatives: "there was" or "there existed."
Exact(3)
Thus, not only is it the case that, had any particular individual a failed to exist, its haecceity ha would still have existed, it is also the case that, for any "merely possible" individual a, there is an actually existing haecceity that would have been a's haecceity had a existed.
French economist Thomas Piketty confirmed in 2013's Capital In The Twenty-First Century that the intensive concentration of wealth brought about by late 20th century neoliberal reforms a) existed and b) was probably bad for democracy.
Type I AFEs included those where the first exons were mutually exclusive and where most of the downstream exons were identical between gene structures within the same cluster; Type II AFEs included those where the first exon of gene structure A existed as an internal exon of gene structure B. It should be noted that sometimes a cluster could contain more than one type of AFEs.
Similar(57)
Proof First, assume that A exists.
It follows that b : a exists.
(a) exists and, are positive for.
sPLD-like-A homologs exist outside oomycetes.
A problem existed though.
Had such a whale existed?
Perhaps such a coffin existed, perhaps not.
Who knew such a thing existed here?
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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