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Proof step 1 from proof elim-mapped (conclusion)

⊦ avol[n].mapped? ↔ (∃ buf. avol[n] = mapped(buf))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ aleb.mapped? ↔ (∃ buf. aleb = mapped(buf))

Rule argument

spec: aleb name: ex seq: ⊦ aleb.mapped? ↔ (∃ buf. aleb = mapped(buf)) subst: [aleb] → [avol[n]] flags: <all paths>

Additional information

Used terms: avol[n]