There has been much work on connected dominating sets.
An open connected set is called an open region or domain.
A space is locally connected if every point has a local base consisting of connected sets.
Product numerical range forms a connected set in the complex plane.
This is true because product numerical range is a continuous image of a connected set.
If is a connected set, then the constants are the only antiderivatives of the zero function.
And it wouldn't be a bad thing to try to get some connected set of proofs for your story of what you did that night.
But it is not always possible to find a topology on the set of points which induces the same connected sets.
A different name can then be formed for each such connected set of value definitions and uses.
Let G C be a domain (an open and connected set).