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Theorem validfield-one

⊦ validfield(str, r, sk, st) ↔ is_fskey(sk) ∧ r -- sk ∈ st ∧ type∃(str, sk .fs .type) ∧ sk .fs .type ≠ void_type ∧ validval(str, st[r -- sk], sk .fs .type, st)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: validstatfield-validref, validstatfields-class-01,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 4
Proof steps: 8
Used lemmas: validval-def, validfield-def,
Used spec theorems:
- okfuns/good-field-def
Used simplifier rules: