LeanCat / CAT_statement /S_0041.lean
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import Mathlib
open CategoryTheory
universe u v w
namespace CAT_statement_S_0041
structure FreeObject {C : Type u} [Category.{v} C] [HasForget.{w} C] (x : Type w) where
(obj : C)
(emb : x ⟶ (forget C).obj obj)
(uniq : ∀ (Y : C) (f : x ⟶ (forget C).obj Y), ∃! (g : obj ⟶ Y), emb ≫ (forget C).map g = f)
theorem complete_lattice_category (X : Type u) :
Nonempty (FreeObject (C := CompleteLat) X) ↔ Cardinal.mk X ≤ 2 := by
sorry
end CAT_statement_S_0041