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Theorem rev-app

⊦ rev(x + y) = rev(y) + rev(x)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 3
Used lemmas: rev-r, rev-e,
Used spec theorems:
- Used simplifier rules:
  - list/Nil
  - list/app
  - list/app-03
  - list/Last
  - list/a
  - list/c