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Theorems · Theorem · functional analysis

ContinuousLinearMap.closed_complemented_range_of_isCompl_of_ker_eq_bot

∀ {𝕜 : Type u_1} [inst : NontriviallyNormedField 𝕜] {E : Type u_3} [inst_1 : NormedAddCommGroup E]
  [inst_2 : NormedSpace 𝕜 E] [CompleteSpace E] {F : Type u_5} [inst_4 : NormedAddCommGroup F] [inst_5 : NormedSpace 𝕜 F]
  [CompleteSpace F] (f : E →L[𝕜] F) (G : Submodule 𝕜 F),
  IsCompl (↑f).range G → IsClosed ↑G → (↑f).ker = ⊥ → IsClosed ↑(↑f).range
Defined in
Mathlib.Analysis.Normed.Operator.Banach
Cited by
0 results in Mathlib
Foundations
Depth 176 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NontriviallyNormedFieldNormedAddCommGroupNormedSpaceCompleteSpaceNormedAddCommGroupNormedSpaceCompleteSpace

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