On Mar 20, 10:21 pm, WM <mueck...@rz.fh-augsburg.de> wrote: > On 20 Mrz., 22:11, William Hughes <wpihug...@gmail.com> wrote: > > > On Mar 20, 10:01 pm, WM <mueck...@rz.fh-augsburg.de> wrote: > > > > It cannot contain a necessary line, since, as you said, there is no > > > necessary line. > > > But you think that it necessarily must contain a not necessary line. > > > Correct. However, this not necessary line can be any line. > > > > If so, then at least one line is necessary. > > > No, knowing that you need one line does not mean you need > > one particular line. > > You cannot know that you need one line, because every chice can be > disproved.
Nope. As noted, the fact that you need one line does not make a choice a necessary line. Since the choice is not a necessary line it cannot be disproved.