Commit 74dfa8b6 authored by Ralf Jung's avatar Ralf Jung

core comment

parent f2d12f84
......@@ -3,7 +3,9 @@ From iris.proofmode Require Import tactics.
Set Default Proof Using "Type".
Import uPred.
(** The "core" of an assertion is its maximal persistent part. *)
(** The "core" of an assertion is its maximal persistent part,
i.e. the conjunction of all persistent assertions that are weaker
than P (as in, implied by P). *)
Definition coreP {M : ucmraT} (P : uPred M) : uPred M :=
( Q, (P Q) Q)%I.
Instance: Params (@coreP) 1.
......
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