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| Mirrors > Home > HSE Home > Th. List > shex | Structured version Visualization version GIF version | ||
| Description: The set of subspaces of a Hilbert space exists (is a set). (Contributed by NM, 23-Oct-1999.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shex | ⊢ Sℋ ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-hilex 31606 | . . 3 ⊢ ℋ ∈ V | |
| 2 | 1 | pwex 5341 | . 2 ⊢ 𝒫 ℋ ∈ V |
| 3 | shss 31817 | . . . 4 ⊢ (𝑥 ∈ Sℋ → 𝑥 ⊆ ℋ) | |
| 4 | velpw 4561 | . . . 4 ⊢ (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ) | |
| 5 | 3, 4 | sylibr 237 | . . 3 ⊢ (𝑥 ∈ Sℋ → 𝑥 ∈ 𝒫 ℋ) |
| 6 | 5 | ssriv 3912 | . 2 ⊢ Sℋ ⊆ 𝒫 ℋ |
| 7 | 2, 6 | ssexi 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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