Full Idea
Some authors need to be told loud and clear: if there is an empty set, it is something, not nothing.
Gist of Idea
The empty set is something, not nothing!
Source
Oliver,A/Smiley,T (What are Sets and What are they For? [2006], 1.2)
Book Reference
'Metaphysics (Philosophical Perspectives 20)', ed/tr. Hawthorne,John [Blackwell 2006], p.129
A Reaction
I'm inclined to think of a null set as a pair of brackets, so maybe that puts it into a metalanguage.