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Proof step 14 from proof junkrefs-union-disjoint (previous step)

¬ r -- _type ∈ st, st1 .refs ∩ st .refs = ∅, r ∈ st1, is_valid_ref(str, r, st1), st1[r -- _type] .type ≤ ty, ¬ is_valid_ref(str, r, st1 ∪ st) ∨ ¬ st1[r -- _type] .type ≤ ty ⊦ r = jvmref

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 13:
st1 .refs ∩ st .refs = ∅, r ∈ st1, is_valid_ref(str, r, st1), st1[r -- _type] .type ≤ ty ⊦ r = jvmref, r -- _type ∈ st, is_valid_ref(str, r, st1 ∪ st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]