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Theorem prefixn-add

n ≠ 0 ⊦ prefixn(n, a ' + x0) = prefixn(n, a ' + x1) ↔ prefixn(n - 1, x0) = prefixn(n - 1, x1)

Type: A user defined theorem
Validity: The proof is valid.
Features: ls,
Comment:
Used by: prefixn-shorter, refine-add,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 3
Used lemmas:
Used spec theorems:
- Used simplifier rules: