There are some incorrect uses of mathematical terminology and typos in previous papers. We rewrite them precisely here.
We have noticed some misuse of mathematical terminology in this previous letter, and rewrite them precisely here.
The following paragraph is from that letter (pp. 1075–1076):
It should be rewritten as:
Similarly, on page 696 of Lu, Wenlian, Chen, and Tianping (2006), there is a problem in the following paragraph:
The correct wording is: