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Proof step 4 from proof unchNorec-validrefs-pathex (previous step)

¬ (r1 ≠ jvmref ∧ (¬ is_valid_ref(str, r1, st) ∨ ¬ st[r1 -- _type] .type ≤ ty)), validrefs(str, r1 ' + refs0, ty, st), ∀ r. r = r1 ∨ r ∈ refs0 → unchangedNorec(r, st, st0) ⊦ r1 = jvmref, is_valid_ref(str, r1, st0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
validrefs(str, r1 ' + refs0, ty, st), is_valid_ref(str, r1, st), st[r1 -- _type] .type ≤ ty, ∀ r. r = r1 ∨ r ∈ refs0 → unchangedNorec(r, st, st0) ⊦ r1 = jvmref, is_valid_ref(str, r1, st0)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]