- The terms ‘endurance1’ and ‘perdurance2’ are commonly thought to denote distinct ways for an object to persist, but it is surprisingly hard to say what these are.
- The common approach, defining them in terms of temporal parts, is mistaken, because it does not lead to two coherent philosophical alternatives: endurance so understood becomes conceptually incoherent, while perdurance3 becomes not just true but a conceptual truth.
- Instead, we propose a different way to articulate the distinction, in terms of identity rather than temporal parts: an object endures if its identity is determined at every moment at which it exists.
- We make precise what it means for the identity of an object to be determined at a moment. We also discuss what role the endurance4 / perdurance5 distinction, so understood, should play in the debates about time, material objects and personal identity.
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