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Proof step 38 from proof nopathex-badarrayfield (previous step)

fs ' = _length, is_arraytype(st[r0 -- _type] .type), ∃ refs. refs ≠ [] ∧ refs .first = r ∧ refs .last = r0 ∧ validrefs(str, refs, st[r -- _type] .type, st) ⊦ r0 = jvmref, contains(str, st[r -- _type] .type, fs)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 37:
fs ' = _length, is_arraytype(st[refs .last -- _type] .type), validrefs(str, refs, st[refs .first -- _type] .type, st) ⊦ refs .last = jvmref, refs = [], contains(str, st[refs .first -- _type] .type, fs)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]