Full Idea
'Property dualism' is the view according to which the mental and the physical are not distinguishable kinds of substance, but distinct families of properties.
Gist of Idea
'Property dualism' says mind and body are not substances, but distinct families of properties
Source
John Heil (Philosophy of Mind [1998], Ch.2 n)
Book Reference
Heil,John: 'Philosophy of Mind' [Routledge 1998], p.48
A Reaction
I am struggling to make sense of properties being in distinct families. If it is like smells and colours, it doesn't say much, and if the difference is more profound then it begins to look like old-fashioned dualism in disguise.