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Theorem preserve-INV-fin

frag*(IOAut(start, step, ext))(sl, al), iNV(sl[0]), ∀ s, a, s0. iNV(s) ∧ step(s, a, s0) → iNV(s0) ⊦ iNV(sl.last)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state: IOrefine-conds-imply-IOrefine, IObackward-INV-is-leqstarrefine,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 10
Used lemmas: not-finfrag-empty, fragstar-def, preserve-INV,
Used spec theorems:
- list-del/get-last-nonempty
Used simplifier rules: