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Proof step 6 from proof bar-zero (previous step)

¬ 0 < st[r -- _length] .intval ⊦ getbytearray(r, 0, st[r -- _length] .intval, st) = [] ↔ ¬ 0 < st[r -- _length] .intval

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
st[r -- _length] .intval ≤ 0 ⊦ getbytearray(r, 0, st[r -- _length] .intval, st) = []

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ j ≤ i ∧ i ≤ 0 → j ≤ 0], [CSIMPSEQ : ⊦ i ≤ 0 ∧ 0 ≤ j → i ≤ j], [CSIMPSEQ : ⊦ ¬ i < j ↔ j ≤ i])]]