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Theorem lapp-01

⊦ (x + a ' + y).last = (a ' + y).last

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: l-05, lapp, lapp-03, last-one, lthree,
Used by units in proved state: path-reachable,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 1
Used lemmas: last-def, last-elim,
Used spec theorems:
- Used simplifier rules:
  - list/e-01
  - list/a
  - list/in-14
  - list/in-15
  - list/app-02-ant
  - list/e