"The significant effects proposed by the 5 packages do not agree --neither with each other nor with the book."
Is this really wrong? I know the rule about using neither/nor only with affirmative statements, but it just feels so right.
I'm proofreading a text and wanted to add this. But the grammar check insists that it's incorrect (I know, not always reliable). I was hoping that setting it apart with the double-hyphen would separate it sufficiently from the affirmative verb.
It could be argued that "neither/nor" here adds more emphasis, in a similar way as adding an unnecessary auxiliary verb (e.g., "The packages do not calculate the effects, but they do identify outliers.")
Double and sometimes even triple negatives exist correctly in other languages as intensifiers, and are still attractive to English speakers for this use, despite a protracted war against them.
– Matt Feb 27 '14 at 11:55