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Theorem dlls-last-fold-head

⊦ (hd => mknode(prv, a, hd0) * dlls(hd0, lst, hd, nxt, x) * hP)(h) ↔ (dlls(hd, lst, prv, nxt, a ' + x) * hP)(h) ∧ True((h(hd)).right = hd0)

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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Infos about the proof

Proved?: Yes
Interactions: 4
Proof steps: 10
Used lemmas: dlls-last-rec,
Used spec theorems:
- separation/True
Used simplifier rules: