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Proof step 45 from proof write-known (previous step)

mk(rs1, f) = (∅ ++ r)[r, o0], rs1 ∩ rs0 = ∅, R[rs0, f, g], ∀ r. r ∈ rs1 → g(r) = a ⊦ f(r) = o0, r = null, a[r => o1][rs1, f(r; o1), g]

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 46:
⊦ H0 = H1 ↔ (∀ r. (r ∈ H0 ↔ r ∈ H1) ∧ (r ∈ H0 → H0[r] = H1[r]))
Proof step 47:
rs1 ∩ rs0 = ∅, R[rs0, f, g], ∀ r. r ∈ rs1 → g(r) = a, ∀ r0. (r0 ∈ mk(rs1, f) ↔ r0 ∈ (∅ ++ r)[r, o0]) ∧ (r0 ∈ mk(rs1, f) → mk(rs1, f)[r0] = (∅ ++ r)[r, o0][r0]) ⊦ f(r) = o0, r = null, a[r => o1][rs1, f(r; o1), g]

Rule argument

spec: heap name: ext seq: ⊦ H0 = H1 ↔ (∀ r. (r ∈ H0 ↔ r ∈ H1) ∧ (r ∈ H0 → H0[r] = H1[r])) subst: [H1, H0] → [(∅ ++ r)[r, o0], mk(rs1, f)] flags: <all paths>

Additional information

Used terms: (∅ ++ r)[r, o0], mk(rs1, f)