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Theorem max-in-01

⊦ max(ints) ∈ ints ↔ ints ≠ []

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: max-in-not-ls, max-is-max, max-one, max-rec, nodups-interval-size, primes-max-even,
Used by units in proved state: int-fac,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 1
Used lemmas: max-in, max-empty,
Used spec theorems:
- Used simplifier rules:
  - list/intlista/in-empty