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Theorem rtc-last

⊦ n ≠ 0 → (rtc(n, a, b) ↔ (∃ c. rtc(n - 1, a, c) ∧ p(c, b)))

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 7
Proof steps: 20
Used lemmas: rtc-base, rtc-rec,
Used spec theorems:
- Used simplifier rules: