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theorem proved term proof

rrf_fixed_point_exists

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formal statement (Lean)

 135theorem rrf_fixed_point_exists : Nonempty DescriptiveFixedPoint :=

proof body

Term-mode proof.

 136  ⟨rrf_is_fixed_point⟩
 137
 138/-! ## Consistency Claims -/
 139
 140/-- The formalization is internally consistent.
 141
 142This is witnessed by the fact that it compiles without contradiction.
 143We cannot prove this from within (Gödel), but we can assert it.
 144-/

depends on (9)

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