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Theorem good-field-02

⊦ is_fskey(sk) → (goodfieldandtype(r, sk, st) ↔ r -- sk ∈ st ∧ oktype(st[r -- sk], sk .fs .type, st))

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: gft-not-01,
Used by units in proved state:
Proof exists?: Yes

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Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 1
Used lemmas: oktype-okval, good-field-def,
Used spec theorems:
- Used simplifier rules: