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Proof step 15 from proof unchanged-getbar (previous step)

okbytearray(r, st), unchanged(str, r, st, st0) ⊦ st[r -- _length] .intval = 0 ∧ ¬ 0 < st0[r -- _length] .intval, st[r -- _length] .intval = st0[r -- _length] .intval ∧ (0 ≤ j ∧ j < st[r -- _length] .intval → st[r -- j '] .byteval = st0[r -- j '] .byteval)

User applied rule cut formula

And obtained the following new goals

Rule argument

[fma-arg: st[r -- _length] = st0[r -- _length]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRAFMAS : (st[r -- _length] = st0[r -- _length])]]