Identity of Reference and Identity of Properties
It is perhaps self-evident that if p and q have identity of reference then they will have the same properties.
Question: if p and q have identity of properties do they have identity of reference?
This issue is important across time, when there must be a sufficiency of identity of properties for p now and p earlier to be the same thing, but there must also be difference in properties for there to be change and without change, time cannot exist.
What about identity across possible worlds?
By Martin Prior
The Philosophy Takeaway 'Identity' Issue 37
