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Theorem prefixn-toset-subseteq

⊦ ax.toSet ⊆ as → prefixn(n, ax).toSet ⊆ as

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 7
Used lemmas:
Used spec theorems:
- set-union/node-store/subdef
Used simplifier rules:
- set-basic/node-store/sub-ntrans-01
- list+set/address-list-set/toSet-ext
- list-prefixn/address-list-set/prefixn-in