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Theorem fraginf

⊦ fragω(ioa)(sf, af) ↔ (∀ n. ioa.step(sf(n), af(n), sf(n +1)))

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: inffrag-rec,
Used by units in proved state: IOtrace-lift, IOrefine-conds-imply-IOrefine, weakfin-startfin-IObackward-INV-is-leqrefine,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 6
Used lemmas: frag, fragomega-def, frag-step-inf-inf,
Used spec theorems:
- Used simplifier rules: