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Proof step 22 from proof fits-put-statfield (previous step)

sk0 = i ', st[r -- sk0] = refval(r0), is_array(str, r, st), junkref(str, r0, st), is_arraytype(st[r -- _type] .type), is_indexkey(sk0), i < st[r -- _length] .intval, 0 ≤ i, 0 < st[r -- _length] .intval ⊦ r = jvmref, fits(r0, sks0, st[jvmref -- sk, val]) ↔ fits(r0, sks0, st), junkref(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
st[r -- i '] = refval(r0), is_array(str, r, st), junkref(str, r0, st), is_arraytype(st[r -- _type] .type), i < st[r -- _length] .intval, 0 < st[r -- _length] .intval, 0 ≤ i ⊦ r = jvmref, fits(r0, sks0, st[jvmref -- sk, val]) ↔ fits(r0, sks0, st), junkref(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j], [CSIMPSEQ : ⊦ is_indexkey(i ')])]]