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Theorem append-extract-list

finp(σ) ⊦ (⌜x⌝ + σ).l = x + σ.l

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: append-extract-list-2,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 5
Used lemmas: cons-extract-list, finp-append-02, append-finfin, append-assoc, empty-append, empty,
Used spec theorems:
- Used simplifier rules: