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Theorem shex 31796
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 31583 . . 3 ℋ ∈ V
21pwex 5342 . 2 𝒫 ℋ ∈ V
3 shss 31794 . . . 4 (𝑥 ∈ Sℋ → 𝑥 ⊆ ℋ)
4 velpw 4562 . . . 4 (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ)
53, 4sylibr 237 . . 3 (𝑥 ∈ Sℋ → 𝑥 ∈ 𝒫 ℋ)
65ssriv 3935 . 2 Sℋ ⊆ 𝒫 ℋ
72, 6ssexi 5284 1 Sℋ ∈ V
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   ∈ wcel 2145  Vcvv 3451   ⊆ wss 3899  𝒫 cpw 4557   ℋchba 31503   Sℋ csh 31512
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 2147  ax-9 2155  ax-ext 2733  ax-sep 5249  ax-pow 5327  ax-hilex 31583
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 2740  df-cleq 2753  df-clel 2836  df-rab 3414  df-v 3453  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-br 5104  df-opab 5168  df-xp 5657  df-cnv 5659  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-sh 31791
This theorem is used by:  chex  31810
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