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Proof step 12 from proof unchanged-levelsubset (previous step)

level⊆(str, str0), unchanged(str, r, st, st0), ∀ r0. (path∃(str, r, r0, st) ↔ path∃(str, r, r0, st0)) ∧ (path∃(str, r, r0, st) → unchangedNorec(r0, st, st0)) ⊦ junkref(str, r, st), (path∃(str0, r, r0, st) ↔ path∃(str0, r, r0, st0)) ∧ (path∃(str0, r, r0, st) → unchangedNorec(r0, st, st0))

User applied rule all left

And obtained the following new goals

Proof step 11:
level⊆(str, str0), unchanged(str, r, st, st0), (path∃(str, r, r0, st) ↔ path∃(str, r, r0, st0)) ∧ (path∃(str, r, r0, st) → unchangedNorec(r0, st, st0)) ⊦ junkref(str, r, st), (path∃(str0, r, r0, st) ↔ path∃(str0, r, r0, st0)) ∧ (path∃(str0, r, r0, st) → unchangedNorec(r0, st, st0))

Rule argument

[EXRARG : pos: left 3, [extquanttermlist: (r0)abort:F, discard:T, computed:T]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (r0)]]