English
Conjugating by a composition of order isomorphisms equals successively conjugating by each isomorphism.
Русский
Конъюгация по композиции би-дополнения равна конъюгации по каждому из факторов по отдельности.
LaTeX
$$$c.conjBy( e_{1}.trans e_{2}) = (c.conjBy e_{1}).conjBy e_{2}$$$
Lean4
theorem conjBy_trans {α β γ} [Preorder α] [Preorder β] [Preorder γ] (e₁ : α ≃o β) (e₂ : β ≃o γ)
(c : ClosureOperator α) : c.conjBy (e₁.trans e₂) = (c.conjBy e₁).conjBy e₂ :=
rfl