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Theorem shex 31819
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 Sℋ ∈ V

Proof of Theorem shex
StepHypRef Expression
1 ax-hilex 31606 . . 3 ℋ ∈ V
21pwex 5341 . 2 𝒫 ℋ ∈ V
3 shss 31817 . . . 4 (𝑥 ∈ Sℋ → 𝑥 ⊆ ℋ)
4 velpw 4561 . . . 4 (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ)
53, 4sylibr 237 . . 3 (𝑥 ∈ Sℋ → 𝑥 ∈ 𝒫 ℋ)
65ssriv 3912 . 2 Sℋ ⊆ 𝒫 ℋ
72, 6ssexi 5283 1 Sℋ ∈ V
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   ∈ wcel 2144  Vcvv 3450   ⊆ wss 3895  𝒫 cpw 4556   ℋchba 31526   Sℋ csh 31535
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-ext 2732  ax-sep 5248  ax-pow 5326  ax-hilex 31606
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-sb 2099  df-clab 2739  df-cleq 2752  df-clel 2835  df-rab 3413  df-v 3452  df-ss 3896  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4585  df-pr 4587  df-op 4835  df-br 5103  df-opab 5167  df-xp 5656  df-cnv 5658  df-dm 5660  df-rn 5661  df-res 5662  df-ima 5663  df-sh 31814
This theorem is used by:  chex  31833
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