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import Mathlib

open CategoryTheory

variable {C : Type u} [Category.{v} C] {D : Type u} [Category.{v} D]

theorem isLeftAdjoint_iff_yoneda_comp_op_isRepresentable (F : CD) :
    F.IsLeftAdjoint ↔ ∀ (d : D), (F.opyoneda.obj d).IsRepresentable := by
  sorry