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Proof step 21 from proof inv-flashsize-prepend (previous step)

# x = # lax, (@(m, a.flashsize) ' + lax)[n] = @(m0, m1), n ≤ # lax, ∀ n. n < # lax → lax[n].size = x[n].flashsize ⊦ m1 = x[n - 1].flashsize, n = 0

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 22:
# x = # lax, (@(m, a.flashsize) ' + lax)[n] = @(m0, m1), n = m2 + 1, n ≤ # lax, ∀ n. n < # lax → lax[n].size = x[n].flashsize ⊦ m1 = x[m2].flashsize, n = 0

Rule argument

spec: nat name: elim-pred-c seq: n ≠ 0 ⊦ m = n - 1 ↔ n = m + 1 subst: [n, m] → [n, m2]

Additional information

Used simplifier rules: n ≠ 0 ⊦ m = n - 1 ↔ n = m + 1; (elim) Used terms: n, m2