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Theorem sublist-part

⊦ # x = n0 + m0 → firstn(m0, x) + firstn(n0, restn(m0, x)) = x

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 8
Used lemmas: restN-rec, first-all, firstN-rec, first-num, restN-zero, firstN-zero,
Used spec theorems:
- Used simplifier rules: