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Theorem shex 31542
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 31329 . . 3 ℋ ∈ V
21pwex 5353 . 2 𝒫 ℋ ∈ V
3 shss 31540 . . . 4 (𝑥S𝑥 ⊆ ℋ)
4 velpw 4568 . . . 4 (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ)
53, 4sylibr 237 . . 3 (𝑥S𝑥 ∈ 𝒫 ℋ)
65ssriv 3942 . 2 S ⊆ 𝒫 ℋ
72, 6ssexi 5294 1 S ∈ V
Colors of variables: wff setvar class
Syntax hints:  wcel 2143  Vcvv 3455  wss 3906  𝒫 cpw 4563  chba 31249   S csh 31258
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-ext 2735  ax-sep 5258  ax-pow 5338  ax-hilex 31329
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-sb 2097  df-clab 2742  df-cleq 2755  df-clel 2838  df-rab 3417  df-v 3457  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4288  df-if 4489  df-pw 4565  df-sn 4591  df-pr 4593  df-op 4597  df-br 5111  df-opab 5175  df-xp 5669  df-cnv 5671  df-dm 5673  df-rn 5674  df-res 5675  df-ima 5676  df-sh 31537
This theorem is referenced by:  chex  31556
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