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Proof step 5 from proof Security-simple (conclusion)

⊦ obs(run(cl), d) = obs(run(ipurge(cl, d)), d)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ eqd(sys, d, sys0) → obs(sys, d) = obs(sys0, d)

Rule argument

[x0lemmaarg: spec-name: AccessControl instance-name: lemma-name: RMA-1 antecedent: succedent: eqd(sys, d, sys0) → obs(sys, d) = obs(sys0, d) substlist: [sys0, d, sys] → [run(ipurge(cl, d)), d, run(cl)] add preconditions?: F is rewrite lemma?: T current spec?: F rotate lemma?: F replace all?: T paths: ((1, 0, 0, 1, 0)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (run(ipurge(cl, d)), d, run(cl))]]