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Theorem okarray-len

⊦ okarray(r, ty, st) → ¬ st[r -- _length] .intval < 0

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: isarray-len, isarray-put, okarray-08, okarray-length, okarray-okarray-01, okarray-put-06, okarray-put-okval, okarray-putbar-same-03, okarray-supertype, okbar-bytes2int-same, okbar-len, okbar-putbar, short-length,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas: okreftype, okarrayNotNull, okarray-05,
Used spec theorems:
- Used simplifier rules: