RT Journal Article T1 A Mereological Slingshot A1 Di Rienzo, Alejandro Gracia K1 Facts K1 Mereology K1 Slingshot K1 States of affairs AB I examine a package of views about facts: (1) the mereological sum of two facts is their conjunction, (2) the sum of facts obeys the laws of classical mereology, (3) facts are closed under disjunction and (4) facts are identical when they necessarily co-obtain. I show that this package of principles collapses: they jointly entail that there is at most one fact. I discuss four possible solutions, each consisting in the rejection of one of the principles PB Oxford Academic SN 0003-2638 YR 2025 FD 2025-10-03 LK https://hdl.handle.net/10347/46387 UL https://hdl.handle.net/10347/46387 LA eng NO Di Rienzo, A. G. (2025). A mereological slingshot. Analysis, 10.1093/analys/anaf064 DS Minerva RD 23 may 2026