Identity Postgrad seminar 2nd semester 2008                                Revised October 6, 2008

meets 10:30-12:10, MTB 315

John Collier, MTB 280, x3248, collierj@ukzn.ac.za


We will be focusing on identity, individuation and unity. We will begin with personal identity, after which we will look at some classic problems concerning identity, and some proposed solutions. We will then look at how complexity theory treats identity, and how we might be able to solve the classic problems with a dynamical account of identity (based on my current work).



Requirements: 1) two short papers (around 1250-1500 words) on specific assigned topics. The first will be due after I get back from Poland (by September 19th, worth 10%) and the second after the semester break (by October 3rd, worth 20% ). Each person will do a class presentation before the break on one of the readings. 2) a term paper on a subject chosen in consultation with me will be due in time for me to grade it and return the marks to Yolanda (worth 70%). However, you must choose your topic soon after the mid-term break, and prepare a presentation to the seminar on your topic. This will give you feedback from fellow students, as well as forcing you to define your topic well ahead of the due date. The class presentations will not lower your grade, but may raise it.


I will give more details of assignments here as they come up. The first assignment is to be found here.
The second assignment is to be found here. It due on October 17, 2008.


August 1
Introduction. Read Stanford Encyclopedia of Philosophy articles on identity and personal Identity for background.
Logic of identity: a = a, a = b, difference between the logic of signs and their objects, can identity be discovered? Is it empirical? Necessary?
Intuitions about identity: Leibniz' Law  (P)(a = b → Pa ≡ Pb)
Notice that Leibniz' Law is in second order logic (quantification over properties), so the logic of identity and all its consequences may well be incomplete. This means that it may well have a non-reducible aspect. We will discuss this more when we get to complex systems.


August 8

John Locke, chapter 27 of  Essay Concerning Human Understanding, "Of identity and diversity".
    Note the new intuition about identity: No more than one thing of the same kind can occupy the same space and time.

Joseph Butler, Of Personal Identity
    Note a further intuiton about identity, that a thing is nothing more than its composition.

August 15

Thomas Reid, Of Identity
       ----   , Of Mr. Locke's Account of Our Personal Identity
John Perry, Personal Identity, Memory, and the Problem of Circularity

Supplementrary reading:
Anthony Quinton, 1962."The soul", Journal of Philosophy, 59, no. 15: 393-409
H.P. Grice, 1941. "Personal identity", Mind, 50, no. 200: 330-350.

August 22

David Hume (three short readings)


August 29
Derek Parfit, Personal Identity

John Perry, The Importance of Being Identical

September 5 No class -- I will be in Poland September 4-12.


September 12 To be rescheduled --  we will meet Monday, September 1, 10:30-12:10
Max Black, 1952.
"The Identity of Indiscernibles", Mind, 61: 153-64.

September 19

Ian Hacking, 1975. "The Identity of Indiscernibles", Journal of Philosophy, 72: 249-256.  First assignment due.

September 26 mid-semester break


October 3 Rescheduled to 10:30 October 6 due conflict with department meeting. Topic will be wholes and parts.
Baker, L. R., 1997, ‘Why Constitution Is Not Identity’, Journal of Philosophy 94: 599-621. (get from Yolanda)
Suggested: Stanford Enctclopedia of Philosophy, Mereology


October 10 Continue with Baker 'Constitution is not Identity" from section iii.


October 17 Second assignment due.
Reduction issues, Collier
Reduction, Supervenience, and Physical Emergence ( Behavioral and Brain Sciences commentary, 2004).

Collier, A Dynamical Account of Emergence (draft for Cybernetics and Human Knowing).


October 24 Identity issues in complex systems
Collier,  A dynamical approach to identity and diversity in complex systems.


October 31 Autonomy and individuation.

Kant, Passage from Critique of Practical Reason
Collier, What is autonomy?
Collier, Simulating autonomous anticipation: The importance of Dubois' conjecture.