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Theorem shex 30217
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 30004 . . 3 ℋ ∈ V
21pwex 5340 . 2 𝒫 ℋ ∈ V
3 shss 30215 . . . 4 (𝑥S𝑥 ⊆ ℋ)
4 velpw 4570 . . . 4 (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ)
53, 4sylibr 233 . . 3 (𝑥S𝑥 ∈ 𝒫 ℋ)
65ssriv 3951 . 2 S ⊆ 𝒫 ℋ
72, 6ssexi 5284 1 S ∈ V
Colors of variables: wff setvar class
Syntax hints:  wcel 2106  Vcvv 3446  wss 3913  𝒫 cpw 4565  chba 29924   S csh 29933
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 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-ext 2702  ax-sep 5261  ax-pow 5325  ax-hilex 30004
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 846  df-3an 1089  df-tru 1544  df-fal 1554  df-ex 1782  df-sb 2068  df-clab 2709  df-cleq 2723  df-clel 2809  df-rab 3406  df-v 3448  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-nul 4288  df-if 4492  df-pw 4567  df-sn 4592  df-pr 4594  df-op 4598  df-br 5111  df-opab 5173  df-xp 5644  df-cnv 5646  df-dm 5648  df-rn 5649  df-res 5650  df-ima 5651  df-sh 30212
This theorem is referenced by:  chex  30231
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