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Proof step 24 from proof del-switch (previous step)

⊦ r0 = r1, (st -- r1)[r1 -- sk] = (st -- r0 -- r1)[r1 -- sk]

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 17:
⊦ ¬ rk ∈ st → st[rk] = ∅[rk]
Proof step 18:
⊦ r -- sk ∈ st -- r0 ↔ r ≠ r0 ∧ r -- sk ∈ st
Proof step 23:
¬ r1 -- sk ∈ st -- r0 -- r1 ⊦ r0 = r1, (st -- r1)[r1 -- sk] = ∅[r1 -- sk]

Rule argument

[speclemmaarg: ,¬ rk ∈ st → st[rk] = ∅[rk] ,[rk, st] → [r1 -- sk, st -- r0 -- r1] ,F ,store ,javastore ,notmemlookup ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (r1 -- sk, st -- r0 -- r1)]]