𝕜 : Type u_1
inst✝⁴ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝³ : SeminormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
F : Type ?u.27970
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace 𝕜 F
⊢ ‖ContinuousLinearMap.id 𝕜 (Dual 𝕜 E)‖ ≤ 1
𝕜 : Type u_1
inst✝⁴ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝³ : SeminormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
F : Type ?u.27970
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace 𝕜 F
⊢ ‖inclusionInDoubleDual 𝕜 E‖ ≤ 1
rw [inclusionInDoubleDual_norm_eq]
no goals
𝕜 : Type u_1
inst✝⁴ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝³ : SeminormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
F : Type ?u.27970
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace 𝕜 F
⊢ ‖ContinuousLinearMap.id 𝕜 (Dual 𝕜 E)‖ ≤ 1
exact ContinuousLinearMap.norm_id_le