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Proof step 21 from proof inv-gc (previous step)

# kx = # ax, as ∩ range ri0[kx, ax] = ∅, ax.toSet ∩ log0.toSet = ∅, as ∩ log0.toSet = ∅, as ∩ ax.toSet = ∅, fo.inodes?, ro.inodes?, file-node-cons(fs0, ri0), log-cons(log0, fs0), log-cons(ax, fs0[ax, fs0[ri0[kx]]] \ as), log-cons(log0, fs0[ax, fs0[ri0[kx]]] \ as), new(ax, fs0), orphans-cons(fs0, ri0, ro), replay-cons-strong(fs0, ri0, ro, fi, fo, log0), ri-cons(ri0, fs0), ri-cons(ri0[kx, ax], fs0[ax, fs0[ri0[kx]]] \ as), ri-inj(fi), ri-inj(ri0), ri-inj(ri0[kx, ax]), ubifs-cons(fs0, ri0, ro, fi, fo, log0), kx.toSet ⊆ dom ri0 ⊦ dups(kx), dups(ax), ubifs-cons(fs0[ax, fs0[ri0[kx]]] \ as, ri0[kx, ax], ro, fi, fo, log0 + ax) ∧ replay-cons-strong(fs0[ax, fs0[ri0[kx]]] \ as, ri0[kx, ax], ro, fi, fo, log0 + ax) ∧ file-node-cons(fs0[ax, fs0[ri0[kx]]] \ as, ri0[kx, ax]) ∧ orphans-cons(fs0[ax, fs0[ri0[kx]]] \ as, ri0[kx, ax], ro)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: aubifs-inv name: ubifs-cons seq: ⊦ ubifs-cons(fs, ri, ro, fi, fo, log) ↔ ¬ inodekey(0) ∈ ri ∧ ri-cons(ri, fs) ∧ log-cons(log, fs) ∧ ¬ dups(log) ∧ ri-closed(ri, fs, ro) ∧ ro.inodes? ∧ fo.inodes? ∧ ro ⊆ dom ri ∧ fo ⊆ dom fi subst: [log, fo, fi, ro, ri, fs] → [log0 + ax, fo, fi, ro, ri0[kx, ax], fs0[ax, fs0[ri0[kx]]] \ as] flags: <all paths>

Additional information

Used terms: log0 + ax, fo, fi, ro, ri0[kx, ax], fs0[ax, fs0[ri0[kx]]] \ as