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Theorem revert-last

⊦ a ' + rev(x) = rev(x + a ')

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 1
Used lemmas: rev-one, rev-app,
Used spec theorems:
- Used simplifier rules:
  - list/app-08
  - list/a