structure
definition
def or abbrev
NontrivialSpecification
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formal statement (Lean)
21structure NontrivialSpecification (K : Type*) where
22 inOntology : K → Prop
23 someInside : ∃ x : K, inOntology x
24 someOutside : ∃ x : K, ¬ inOntology x
25
26/-- Specifiability forces distinguishability. -/