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Proof step 24 from proof nopathex-badarrayfield (previous step)

fs ' = _length, validrefs(str, r ' + refs + r0 ', st[r -- _type] .type, st), is_arraytype(st[r0 -- _type] .type), ∃ tys. contains(str, st[r -- _type] .type ' + (tys + st[r0 -- _type] .type)), is_valid_ref(str, r, st) ⊦ r = r0, r0 = jvmref, r = jvmref, contains(str, st[r -- _type] .type, fs)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 23:
fs ' = _length, is_valid_ref(str, r, st), validrefs(str, r ' + refs + r0 ', st[r -- _type] .type, st), is_arraytype(st[r0 -- _type] .type), contains(str, st[r -- _type] .type ' + tys + st[r0 -- _type] .type ') ⊦ r = r0, r0 = jvmref, r = jvmref, contains(str, st[r -- _type] .type, fs)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ tys + ty = tys + ty '])]]