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Theorem validref-subset-01

⊦ ¬ junkref(str, r, st) ∧ st ⊆ st0 → (validref(str, r, ty, st0) ↔ validref(str, r, ty, st))

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: 4
Proof steps: 8
Used lemmas: junkref-keyin, validref-null, validref-def, validref-subset,
Used spec theorems:
- store/javastore/subset-elem-eq
Used simplifier rules: