- This pseudo-Paper is intended as the mechanism to record time spent on the Note 'Occasional Identity1' during my Thesis research, as from 2011.
- For the actual time recorded, click on "Paper Summary" above.
Write-up2 (as at 06/07/2015 18:30:14): Occasional Identity
- The orthodox approach to the Logic4 of Identity is to treat it as a necessary equivalence relation. I follow this approach.
- However, in response to various TEs5, deviant forms6 of Identity have been devised, and some are still popular.
- However, the logic of identity is so secure that it is sensible to look for other explanations of any TE that appears to bring it in doubt.
- Occasional identity is a response to TEs such as the fission7 of an amoeba into two qualitatively identical ones. We want to say that both are numerically identical to the parent, but the logic of identity forbids this unless we claim that the two daughters are numerically identical to one another8. So, the claim is that they were once identical (and co-incident), but now are not.
- This makes numerical identity into a temporary (hence “occasional”) matter.
- My preferred answer to this TE is to appeal to perdurance9 – the daughters were always distinct, but just shared their pre-fission stages. There are other explanations.
- I intend to cover this topic in Chapter_410 along with the other deviant approaches to Identity.
- The study-list for this topic is much shorter than for related topics, as it only includes a whole book and a review thereof:-
- "Gallois (Andre) - Occasions of Identity : a Study in the Metaphysics of Persistence, Change, and Sameness", Gallois
- "Sider (Ted) - Review of André Gallois, Occasions of Identity", Sider11
- This is a place-holder12. See the categorised reading-list below.
- This is the write-up as it was when this Abstract was last output, with text as at the timestamp indicated (06/07/2015 18:30:14).
- Link to Latest Write-Up Note.
Footnote 6: I’m not sure if this is the correct terminology.
- A number of my philosophical Notes are “promissory notes” currently only listing the books and papers (if any) I possess on the topic concerned.
- I’ve decided to add some text – whether by way of motivation, or something more substantive – for all these identified topics related to my Thesis.
- As I want to do this fairly quickly, the text may be confused or show surprising ignorance.
- The reader (if such exists) will have to bear with me, and display the principle of charity while this footnote exists.
Footnote 8: Even this seemingly-impossible claim has been supported. See "Miller (Kristie) - Travelling in Time: How to Wholly Exist in Two Places at the Same Time".
Footnote 11: Read and analyse this first – it may not be worth bothering with the book, unless it sheds light on the topic as a whole.
Text Colour Conventions (see disclaimer)
- Blue: Text by me; © Theo Todman, 2018