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Theorem ton-fromn-inf

⊦ nf.take(n).drop(n) = []

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: to-from-01, ton-fromn,
Used by units in proved state: infinite-append,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas: size-inf-to, length-from,
Used spec theorems:
- list-getput/extension
Used simplifier rules: