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Theorem fill-fill-01

⊦ bits ≠ [] → fillsgn(n, fillsgn(n, bits)) = fillsgn(n, bits)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 4
Used lemmas: fill-nls, fill-length, fillsgn-longer,
Used spec theorems:
- Used simplifier rules:
  - nat-basic1/ref-1
  - nat-basic1/trans
  - nat-basic1/trans-1
  - list-data/bitlista/l
  - nat-basic2/succ
  - nat-basic1/f
  - nat/lels-01