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Proof step 6 from proof Diff-mod (previous step)

⊦ (st[a, d] -- a) \ s = (st \ s) -- a

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 7:
⊦ st[a, d] -- a = st -- a
Proof step 8:
⊦ (st -- a) \ s = (st \ s) -- a

Rule argument

spec: store name: Del-rec-same seq: ⊦ st[a, d] -- a = st -- a subst: [d, a, st] → [d, a, st] flags: <all paths>

Additional information

Used terms: d, a, st