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Proof step 5 from proof log-group-block-remove-wbufs (previous step)

lpt.mapIndices(ns, λ lp. lp.size:= LEB_SIZE)[n] = mklp(m, m0, lpf, m1), n ∈ nx, n ∈ nx → n < # lpt ∧ lpt[n].flags = LP_GROUP_NODES ⊦ n < # lpt ∧ lpf = LP_GROUP_NODES

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
lpt[n].flags = LP_GROUP_NODES, lpt.mapIndices(ns, λ lp. lp.size:= LEB_SIZE)[n] = mklp(m, m0, lpf, m1), n < # lpt, n ∈ nx ⊦ lpf = LP_GROUP_NODES

Rule argument

Additional information

Used simplifier rules: ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic