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Theorem mk-first-01

⊦ m ≠ 0 → mklist(a, m).first = a

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: mk-elem, mk-empty,
Used spec theorems:
- Used simplifier rules:
  - list/c
  - list/in-14
  - list/a
  - list-data/elim-list-c