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Theorem shex 31283
Description: The set of subspaces of a Hilbert space exists (is a set). (Contributed by NM, 23-Oct-1999.) (New usage is discouraged.)
Assertion
Ref Expression
shex S ∈ V

Proof of Theorem shex
StepHypRef Expression
1 ax-hilex 31070 . . 3 ℋ ∈ V
21pwex 5322 . 2 𝒫 ℋ ∈ V
3 shss 31281 . . . 4 (𝑥S𝑥 ⊆ ℋ)
4 velpw 4546 . . . 4 (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ)
53, 4sylibr 234 . . 3 (𝑥S𝑥 ∈ 𝒫 ℋ)
65ssriv 3925 . 2 S ⊆ 𝒫 ℋ
72, 6ssexi 5263 1 S ∈ V
Colors of variables: wff setvar class
Syntax hints:  wcel 2114  Vcvv 3429  wss 3889  𝒫 cpw 4541  chba 30990   S csh 30999
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2708  ax-sep 5231  ax-pow 5307  ax-hilex 31070
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2715  df-cleq 2728  df-clel 2811  df-rab 3390  df-v 3431  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-br 5086  df-opab 5148  df-xp 5637  df-cnv 5639  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-sh 31278
This theorem is referenced by:  chex  31297
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