[see also: minor, slight, somewhat, hardly]
The polynomials $R_i$ do not have this stability property, and are therefore of little interest.
This idea is very little different from what can already be found in [2].
Apart from a few embellishments necessitated by some technical difficulties, the ideas differ very little from those used to prove Lemma 4.
With a little more work we can prove ......
Little else is known about the Klein property in this class of spaces.
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