Full Idea
Some multiply instanced artworks, such as novel and poems, must have at least one instance.
Gist of Idea
Art that is multiply instanced may require at least one instance
Source
Stephen Davies (The Philosophy of Art (2nd ed) [2016], 4.4)
Book Reference
Davies,Stephen: 'The Philosophy of Art (2nd ed)' [Wiley Blackwell 2016], p.90
A Reaction
This is a comment on the idea that all artworks, even oil paintings and buildings are potentially multiply instanced (so the work is the type - Wollheim's view, not one of the tokens).