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

unchanged(str, r, st, st1), validref(str, r, ty, st) ⊦ r = jvmref ∨ st1[r -- _type] .type ≤ ty ∧ ¬ junkref(str, r, st1)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 11:
validref(str, r, ty, st), unchanged(str, r, st, st1) ⊦ r = jvmref, st1[r -- _type] .type ≤ ty ∧ ¬ junkref(str, r, st1)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]