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Proof step 30 from proof inv-lookup (previous step)

boolvar0 ↔ boolvar, fs[ri[inodekey(p_ino)]].directory, fo.inodes?, ro.inodes?, file-node-cons(fs, ri), log-cons(log, fs), orphans-cons(fs, ri, ro), replay-cons-strong(fs, ri, ro, fi, fo, log), ri-inj(fi), ri-inj(ri), ubifs-cons(fs, ri, ro, fi, fo, log), inodekey(p_ino) ∈ ri, fs[ri[inodekey(p_ino)]].nlink ≠ 0 ∨ p_ino = ROOT_INO ⊦ inodekey(p_ino) ∈ ro, ∃ boolvar, nd, key. true

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

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