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Theorem has_reffield-class
⊦ is_obj(r, st) → (has_reffield(r, st) ↔ (∃ fs. fs ' ∈ instfields(st[r -- _type] .type .class) ∧ is_reftype(fs .type)))
Type: An axiom
Validity: The proof is valid.
Features:
Comment:
Used by:
reffield-del
,
Used by units in proved state:
Proof exists?: No