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Theorem store

index_index_store#(KEY, ADR, PFI, PINVAL, PSTORE, PSTORE0, PNL, PMAXINO, P_OS, ISYNCED; OLDADR, EXISTS, PRI) {if ¬ ADR ∈ PRI ∧ ADR ∈ PSTORE ∧ key-cons(KEY, PSTORE[ADR].nd) then {EXISTS := KEY ∈ PRI; if EXISTS then OLDADR := PRI[KEY] else OLDADR := ?; PRI[KEY] := ADR} else abort }