In article <firstname.lastname@example.org>, WM <email@example.com> wrote:
> On 20 Mrz., 21:11, Virgil <vir...@ligriv.com> wrote: > > > > > While WM may not be aware of the fine points of English, when he speaks > > of "THE last line", in standard English it suggest that there is a last > > line. > > Can a well-defined list have more than one last line?
It can have less than one last line!
Both the empty set of lines/FISONs and every infinite set of lines/FISONs when ordered by inclusion have less than one last line, i.e., no last line at all. --