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Theorem keys-eq-empty

⊦ keys(fs, ax) = [] ↔ ax = []

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas:
Used spec theorems:
- Used simplifier rules:
  - aubifs-base/keys-base
  - list/address-list-set/c
  - aubifs-base/keys-rec
  - list/key-list-set/c
  - list/address-list-set/a
  - list/key-list-set/app-02
  - list/key-list-set/e
  - list/key-list-set/a