| 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 | |