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Proof step 2 from proof junkref-update-equiv (previous step)

junkref(str, r, update(r0, fis, st)), validFields(r0, fis, st), is_valid_ref(str, r0, st) ⊦ junkref(str, r, st), path∃(str, r, r0, st), _type ∈ fis

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ ¬ path∃(str, r, r0, st) ∧ ¬ _type ∈ fis ∧ ¬ junkref(str, r, st) → ¬ junkref(str, r, update(r0, fis, st))

Rule argument

[crewrite-arg: junkref-update , F , [st, fis, r0, r, str] → [st, fis, r0, r, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, fis, r0, r, str)]]