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Theorem at-range

⊦ key ∈ key-range(zbrar, n, nused, ri) ∧ n < nused ∧ nused ≤ # zbrar → key-range(zbrar, n, nused, ri)[key] = ri[key]

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: look-subrange, range-put,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 5
Proof steps: 13
Used lemmas: range-one, range-first, range-last, range-inner,
Used spec theorems:
- node-index-restrict/at-le
Used simplifier rules: