α : Type u
β : Type v
γ : Type w
inst✝⁶ : ConditionallyCompleteLinearOrder α
inst✝⁵ : TopologicalSpace α
inst✝⁴ : OrderTopology α
inst✝³ : ConditionallyCompleteLinearOrder β
inst✝² : TopologicalSpace β
inst✝¹ : OrderClosedTopology β
inst✝ : Nonempty γ
f : α → β
s : Set α
Cf : ContinuousAt f (sSup s)
Mf : Monotone f
ne : Set.Nonempty s
H : BddAbove s
⊢ IsLUB (f '' s) (f (sSup s))
α : Type u
β : Type v
γ : Type w
inst✝⁶ : ConditionallyCompleteLinearOrder α
inst✝⁵ : TopologicalSpace α
inst✝⁴ : OrderTopology α
inst✝³ : ConditionallyCompleteLinearOrder β
inst✝² : TopologicalSpace β
inst✝¹ : OrderClosedTopology β
inst✝ : Nonempty γ
f : α → β
s : Set α
Cf : ContinuousAt f (sSup s)
Mf : Monotone f
ne : Set.Nonempty s
H : BddAbove s
⊢ f (sSup s) = sSup (f '' s)
refine' ((isLUB_csSup (ne.image f) (Mf.map_bddAbove H)).unique _).symm
α : Type u
β : Type v
γ : Type w
inst✝⁶ : ConditionallyCompleteLinearOrder α
inst✝⁵ : TopologicalSpace α
inst✝⁴ : OrderTopology α
inst✝³ : ConditionallyCompleteLinearOrder β
inst✝² : TopologicalSpace β
inst✝¹ : OrderClosedTopology β
inst✝ : Nonempty γ
f : α → β
s : Set α
Cf : ContinuousAt f (sSup s)
Mf : Monotone f
ne : Set.Nonempty s
H : BddAbove s
⊢ Tendsto f (𝓝[s] sSup s) (𝓝 (f (sSup s)))
α : Type u
β : Type v
γ : Type w
inst✝⁶ : ConditionallyCompleteLinearOrder α
inst✝⁵ : TopologicalSpace α
inst✝⁴ : OrderTopology α
inst✝³ : ConditionallyCompleteLinearOrder β
inst✝² : TopologicalSpace β
inst✝¹ : OrderClosedTopology β
inst✝ : Nonempty γ
f : α → β
s : Set α
Cf : ContinuousAt f (sSup s)
Mf : Monotone f
ne : Set.Nonempty s
H : BddAbove s
⊢ IsLUB (f '' s) (f (sSup s))
refine' (isLUB_csSup ne H).isLUB_of_tendsto (fun x _ y _ xy => Mf xy) ne _
no goals
α : Type u
β : Type v
γ : Type w
inst✝⁶ : ConditionallyCompleteLinearOrder α
inst✝⁵ : TopologicalSpace α
inst✝⁴ : OrderTopology α
inst✝³ : ConditionallyCompleteLinearOrder β
inst✝² : TopologicalSpace β
inst✝¹ : OrderClosedTopology β
inst✝ : Nonempty γ
f : α → β
s : Set α
Cf : ContinuousAt f (sSup s)
Mf : Monotone f
ne : Set.Nonempty s
H : BddAbove s
⊢ Tendsto f (𝓝[s] sSup s) (𝓝 (f (sSup s)))
exact Cf.mono_left inf_le_left