Complement of zero dimensional space
- From: William Elliot <marsh@xxxxxxxxxxxxxxxx>
- Date: Fri, 26 Jun 2009 02:46:05 -0700
Conjecture. If S is a zero dimensional subspace of R^2,
then R^2 - S is a dense, path connected subspace.
An example is zero dimensional S = QxP \/ PxQ
and path connected R^2 - S = Q^2 x P^2. (P = R\Q)
Trivial examples are any countable S (regular countable
spaces are zero dimensional) and path connected R^2 - S.
A counter example to the converse is the set of all points
of rational slope lines, including the y-axis, through (0,0).
Counter examples are always welcome, because they preempt laboring over a proof.
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