Ludger Honnefelder & Edmund Runggaldier SJ 
Unity and Time in Metaphysics [PDF ebook] 

The contributions to this collection deal with the fundamental problem of unity, which plays a decisive role in many contemporary debates (even when this role is not acknowledged). Questions like whether there can be unities that persist through time ‑ e.g. persons who remain the same throughout their lives ‑ are discussed from various perspectives. Is such an idea possible at all, and if so, what role do concepts like force, capacity, and disposition play in this context?

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