Does "So as long as" mean the same as "Just as long as" in this sentence?

It has been my experience that occasionally younger speakers who are comparatively unfamiliar with the forms and styles of written English can become confused by so..as, and that they do not use this construction themselves. Whether that’s your situation I can’t say, but I’ve definitely come across this before.

What I do know, however, is that your rewrite to *so as long as is ungrammatical. You cannot use them together that way. That’s because so as together like that is normally followed by an infinitive denoting result or consequence, as in

To repair the drain so as to abate the nuisance complained of.

It means “in order to” then. There is also a sense of so as that is equivalent to provided that, as in

I care not how you come by them, so as they are ready to supply my wants.

That would be more like how so long as is used; it’s as though the long were elided.

The OED says that so long as can mean “during the whole time that” and further notes that this sense is “Frequently with a conditional implication”. They also say that it can mean “provided that” or “if only”. It therefore stipulates a condition during which time some previous predicate (can) continue to hold true, to apply.

In this case, that predicate happens to be the “recastability” of votes in Votes can be recast, and the stipulation for its continued application is that the user not again engage in serial voting.

Here therefore are various ways of saying the same thing as the original said:

• Votes reversed by the detection script can be recast by the user at a later time, on condition that the user does not reëngage in serial voting causing them to be again reversed.

• Votes reversed by the detection script can be cast again later by the user, provided that they not reëngage in serial voting and so causes those new votes to be re-reversed.

• Votes reversed by the detection script can be cast again later by the user, if only that user doesn’t return to serial voting and so causes those recast votes to be reversed as well.

• If the user does not reëngage in serial voting and so again trigger the serial-voting detection script, then they are allowed to recast votes the script had reversed earlier.

• Votes reversed by the detection script can be recast later by the user provided that they not reëngage in serial voting, which would again be reversed by the script.

• If the serial-vote detection script reverses a user’s votes, then unless that user again engages in serial-voting when doing so, they are permitted to recast those reversed votes; however, if they do return to serial voting, those new serial votes will also be reversed just like the previous ones.

• If the serial-vote detection script reverses a user’s votes, they are permitted to recast those reversed votes unless they again engage in serial-voting to do so, in which case the script would also reverse their new votes just as it had their earlier ones.

• Provided that the user not reëngage in serial voting to do so, they are free to recast votes reversed by the detection script. But if they recast them as part of another serial-voting spree, the script will reverse those new votes, too.

• Provided only that the user not vote serially to do so, we allow that user to recast the same votes which the detection script had earlier reversed.

• As long as the user avoids voting serially when doing so, they are able to recast votes previously reversed by the detection script.

The reason why the original used so long as instead of as long as is because the condition was stated as a negative, and the OED says that so..as is preferred when this equative construction is used in negative or interrogative contexts. That means that for such speakers as use it, it’s a form of negative concord triggered by negative polarity items. Here are a few of their citations of this:

• 1672 J. Dryden Conquest Granada ɪ. ɪɪ. i. 13
  His Victories we scarce could keep in view, Or polish ’em so fast as he rough drew.
• 1763 C. Johnstone Reverie (new ed.) I. 260
  This is not so strange or ingrateful as it may appear.
• 1779 Mirror No. 58
  Emilia, who now observed that her husband was nowhere so happy as in the country.
• 1842 Ld. Tennyson Morte d’Arthur in Poems (new ed.) II. 11
  I never saw,..So great a miracle as yonder hilt.
• 1849 T. B. Macaulay Hist. Eng. I. ᴠ. 667
  Never..had the condition of the Puritans been so deplorable as at that time.

They further note that using so..as in affirmative clauses where as..as would now normally be used is today considered archaic or dialect speech, except in such phrases as so far as and so much as.

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See Also

• “So long as” vs. “as long as”, #1 of 2.
• “so long as” vs. “as long as”, #2 of 2.
• “not as” versus “less”
• “Not so much as…but…” or “not so much as…but as…?”
• Not so much as [something] as [something else]
• “Not X so much as Y” vs. “not so much X as Y”
• Meaning of “did not so much as” do something