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

st[r -- i '] = refval(r0), 0 ≤ i, 0 < st[r -- _length] .intval, is_array(str, r, st), st[r -- _type] .type ≤ ty, i < st[r -- _length] .intval, validrefs(str, (r0 ' + refs) + refs0, st[r -- _type] .type .type, st), ∀ str0, refs1, ty0, st0. validrefs(str0, (r0 ' + refs) + refs1, ty0, st0) → validrefs(str0, r0 ' + refs, ty0, st0) ⊦ r = jvmref, validrefs(str, r0 ' + refs, st[r -- _type] .type .type, st)

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 8, [QUANTTERMLIST : (str, refs0, st[r -- _type] .type .type, st)]]

Additional information

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