Documentation

LeanPool.SardMoreira.NormedSpace

LeanPool.SardMoreira.NormedSpace #

theorem NNReal.norm_smul {E : Type u_1} [SeminormedAddCommGroup E] [NormedSpace ℝ E] (a : NNReal) (x : E) :
‖a • x‖ = ↑a * ‖x‖
theorem NNReal.dist_smul {E : Type u_1} [SeminormedAddCommGroup E] [NormedSpace ℝ E] (a : NNReal) (x y : E) :
dist (a • x) (a • y) = ↑a * dist x y
theorem NNReal.nndist_smul {E : Type u_1} [SeminormedAddCommGroup E] [NormedSpace ℝ E] (a : NNReal) (x y : E) :
nndist (a • x) (a • y) = a * nndist x y
theorem NNReal.edist_smul {E : Type u_1} [SeminormedAddCommGroup E] [NormedSpace ℝ E] (a : NNReal) (x y : E) :
edist (a • x) (a • y) = ↑a * edist x y