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Proof step 37 from proof nodes-append (previous step)

# x = # lax, st[n, mkblock(x + a ', lax + @(m, m2) ', m1)][m3] = mkblock(x0, lax0, m6), st[n] = mkblock(x, lax, m0), inv-flashsize(x, lax), n ∈ st, @(m3, m4, m5) ∈ st ⊦ @(m3, m4, m5) = @(n, m, m2), x0[pos(@(m4, m5), lax0)] = st[@(m3, m4, m5)], m3 = n, dups(lax), @(m, m2) ∈ lax

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 38:
# x = # lax, st[n] = mkblock(x, lax, m0), st[m3] = mkblock(x0, lax0, m6), inv-flashsize(x, lax), @(m3, m4, m5) ∈ st, n ∈ st ⊦ @(m3, m4, m5) = @(n, m, m2), x0[pos(@(m4, m5), lax0)] = st[@(m3, m4, m5)], m3 = n, dups(lax), @(m, m2) ∈ lax

Rule argument

Additional information

Used simplifier rules: ⊦ n ≠ n0 → st[n0, ablock][n] = st[n]; (s)