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Theorem same-subclasses

same-subclasses-contains(class, str, str0) ⊦ ∀ ty. contains(str0, mkclasstype(class), ty) → type∃(str, ty)

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: 8
Proof steps: 15
Used lemmas: contains-array-elemtype-01, same-subclasses-01,
Used spec theorems:
Used simplifier rules: