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Theorem last-one

⊦ # x = 1 → (y + x).last = x.first

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: l, lapp-01,
Used spec theorems:
- Used simplifier rules: