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Proof step 10 from proof subset-len-01 (previous step)

st0[r -- _length] = intval(i0), st[r -- _length] = intval(i), st[r -- _type] = typeval(mkarraytype(ty)), st0[r -- _type] = typeval(mkarraytype(ty)), r -- _length ∈ st0, is_arrayref(r, i0, st0), r -- _type ∈ st, r ∈ st, 0 ≤ i, r -- _length ∈ st, is_arrayref(r, i, st), ∀ rk. rk ∈ st → rk ∈ st0 ∧ st[rk] = st0[rk], r -- _type ∈ st0, r ∈ st0, 0 ≤ i0 ⊦ i0 = i, r = jvmref

User applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 12, [extquanttermlist: (r -- _length) abort:F , discard:F , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ intval(i) = intval(i0) ↔ i = i0])], [EXTRATERMS : (r -- _length)]]