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Proof step 7 from proof nopathex-badclassfield (previous step)

st[r0 -- _type] .type = mkclasstype(class), is_valid_ref(str, r0, st), fs ' ∈ instfields(class), tdname+∃(str, class) ⊦ fs ' = _type, r0 = jvmref, ∃ tys. tys ≠ [] ∧ tys .first ≤ mkclasstype(class) ∧ contains(str, tys) ∧ is_reftype(tys .last) ∧ (is_classtype(tys .last) → ¬ interface∃(str, tys .last .class) ∧ fs ' ∈ instfields(tys .last .class)) ∧ (is_arraytype(tys .last) → fs ' = _length)

User applied rule exists right

And obtained the following new goals

Proof step 6:
st[r0 -- _type] .type = mkclasstype(class), is_valid_ref(str, r0, st), fs ' ∈ instfields(class), tdname+∃(str, class) ⊦ fs ' = _type, r0 = jvmref, mkclasstype(class) ' ≠ [] ∧ mkclasstype(class) ' .first ≤ mkclasstype(class) ∧ contains(str, mkclasstype(class) ') ∧ is_reftype(mkclasstype(class) ' .last) ∧ ( is_classtype(mkclasstype(class) ' .last) → ¬ interface∃(str, mkclasstype(class) ' .last .class) ∧ fs ' ∈ instfields(mkclasstype(class) ' .last .class)) ∧ (is_arraytype(mkclasstype(class) ' .last) → fs ' = _length)

Rule argument

[EXRARG : pos: right 3, [extquanttermlist: (mkclasstype(class) ') abort:F , discard:T , computed:F ]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (mkclasstype(class) ')]]