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Proof step 22 from proof validrefs-levelsubset (previous step)

st[r -- i '] = refval(r0), 0 ≤ i, 0 < st[r -- _length] .intval, is_array(str0, r, st), is_array(str, r, st), level⊆(str, str0), st[r -- _type] .type ≤ ty0, i < st[r -- _length] .intval, validrefs(str, r0 ' + refs, st[r -- _type] .type .type, st), ∀ str1, ty, st0, str2. validrefs(str1, r0 ' + refs, ty, st0) ∧ level⊆(str1, str2) → validrefs(str2, r0 ' + refs, ty, st0) ⊦ r = jvmref, validrefs(str0, r0 ' + refs, st[r -- _type] .type .type, st)

User applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 10, [extquanttermlist: (str, st[r -- _type] .type .type, st, str0) abort:F , discard:T , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1])], [EXTRATERMS : (str, st[r -- _type] .type .type, st, str0)]]