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Proof step 11 from proof prepost-create-gcheap (previous step)

gc-heap(lpt, log, n) = keyset(gch), gch0 = bin-heap(mkkeyarray(1), 0), log = nx, lpt = lpt1, lpt0 = lpt2, n = n0, n1 = 0, n < # lpt, bin-heap-inv(gch, lpt), id-idx(lpt2, lpt), n ≤ # lpt ⊦ ⟪if lpt[n].flags = LP_GROUP_NODES ∧ ¬ n ∈ log then let ki = key-index(lpt[n].ref-size, n) in gc_heap_insert#(ki; gch, lpt); n := n + 1⟫ ((n ≤ # lpt ∧ bin-heap-inv(gch, lpt) ∧ gc-heap(lpt, log, n) = keyset(gch) ∧ id-idx(lpt2, lpt)) ∧ # lpt - n < # lpt1 - n0)

Heuristic conditional right split applied rule if right

And obtained the following new goals

Rule argument

pos: right 1

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