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Theorem elim-list
⊦ x ≠ [] → (a = x.head ∧ y = x.tail ↔ x = a + y)
Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes
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the proof
Infos about the proof
Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas:
sel-add-dottail
,
sel-add-dothead
,
fr-02
,
Used spec theorems:
Used simplifier rules: