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Theorem rmdup-last

⊦ ¬ a ∈ x → rmdup(x + a ') = rmdup(x) + a '

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 10
Used lemmas: rm-ifrec, rmdup-n, rmdup-y, rm-in-05, rmdup-e, rm-one,
Used spec theorems:
- Used simplifier rules:
  - list/Nil
  - list/c-04
  - list/in-06
  - list/c
  - list/app-08
  - list/a
  - list/in-17
  - list/in-append