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Theorem shex 31505
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 31292 . . 3 ℋ ∈ V
21pwex 5352 . 2 𝒫 ℋ ∈ V
3 shss 31503 . . . 4 (𝑥S𝑥 ⊆ ℋ)
4 velpw 4572 . . . 4 (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ)
53, 4sylibr 237 . . 3 (𝑥S𝑥 ∈ 𝒫 ℋ)
65ssriv 3949 . 2 S ⊆ 𝒫 ℋ
72, 6ssexi 5293 1 S ∈ V
Colors of variables: wff setvar class
Syntax hints:  wcel 2149  Vcvv 3463  wss 3913  𝒫 cpw 4567  chba 31212   S csh 31221
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-ext 2741  ax-sep 5261  ax-pow 5337  ax-hilex 31292
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-sb 2098  df-clab 2748  df-cleq 2761  df-clel 2844  df-rab 3424  df-v 3465  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-br 5114  df-opab 5178  df-xp 5668  df-cnv 5670  df-dm 5672  df-rn 5673  df-res 5674  df-ima 5675  df-sh 31500
This theorem is referenced by:  chex  31519
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