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Proof step 2 from proof elim-mapped (previous step)

leb.mapped? ⊦ ∃ buf, m. leb = mapped(buf, m)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ leb.mapped? ↔ (∃ buf, m. leb = mapped(buf, m))
Proof step 4:
∃ buf, m. leb = mapped(buf, m) ⊦ ∃ buf, m. leb = mapped(buf, m)

Rule argument

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

Additional information

Used terms: leb