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structure definition def or abbrev

UniversalInstantiationCert

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formal statement (Lean)

 190structure UniversalInstantiationCert (K : Type u) [Nonempty K] : Prop where
 191  instantiate :
 192    (∃ x y : K, x ≠ y) → Nonempty (LogicRealization.{u, 0})
 193  named :
 194    (∃ x y : K, x ≠ y) →
 195      ∃ x y : K, ∃ hxy : x ≠ y,
 196        Nonempty (LogicRealization.{u, 0})
 197

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