Full Idea
Some say we can think of a proposition as a limiting case of a property, as when the two-place property '___ loves ___' can become the zero-placed property, or proposition 'that Sam loves Darla'.
Gist of Idea
Maybe a proposition is just a property with all its places filled
Source
Chris Swoyer (Properties [2000], 7.6)
Book Reference
'Stanford Online Encyclopaedia of Philosophy', ed/tr. Stanford University [plato.stanford.edu], p.46
A Reaction
If you had a prior commitment to the idea that reality largely consists of bundles of properties, I suppose you might find this tempting.