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Theorem shex 31601
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 31388 . . 3 ℋ ∈ V
21pwex 5356 . 2 𝒫 ℋ ∈ V
3 shss 31599 . . . 4 (𝑥S𝑥 ⊆ ℋ)
4 velpw 4572 . . . 4 (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ)
53, 4sylibr 237 . . 3 (𝑥S𝑥 ∈ 𝒫 ℋ)
65ssriv 3944 . 2 S ⊆ 𝒫 ℋ
72, 6ssexi 5298 1 S ∈ V
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wcel 2146  Vcvv 3458  wss 3908  𝒫 cpw 4567  chba 31308   S csh 31317
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-ext 2738  ax-sep 5262  ax-pow 5341  ax-hilex 31388
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-clab 2745  df-cleq 2758  df-clel 2841  df-rab 3420  df-v 3460  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-nul 4290  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-br 5115  df-opab 5179  df-xp 5672  df-cnv 5674  df-dm 5676  df-rn 5677  df-res 5678  df-ima 5679  df-sh 31596
This theorem is used by:  chex  31615
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