Full Idea
I am taking mental types to form a small subclass of teleological types occurring for the most part at a high level of functional abstraction.
Clarification
'Teleological types' are identified by their purposes
Gist of Idea
Mental types are a subclass of teleological types at a high level of functional abstraction
Source
William Lycan (Consciousness [1987], 4.3)
Book Reference
Lycan,William G.: 'Consciousness' [MIT 1995], p.43
A Reaction
He goes on to say that he understand teleology in evolutionary terms. There is always a gap between how you characterise or individuate something, and what it actually is. To say spanners are 'a small subclass of tools' is not enough.