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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 31070 | . . 3 ⊢ ℋ ∈ V | |
| 2 | 1 | pwex 5322 | . 2 ⊢ 𝒫 ℋ ∈ V |
| 3 | shss 31281 | . . . 4 ⊢ (𝑥 ∈ Sℋ → 𝑥 ⊆ ℋ) | |
| 4 | velpw 4546 | . . . 4 ⊢ (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ) | |
| 5 | 3, 4 | sylibr 234 | . . 3 ⊢ (𝑥 ∈ Sℋ → 𝑥 ∈ 𝒫 ℋ) |
| 6 | 5 | ssriv 3925 | . 2 ⊢ Sℋ ⊆ 𝒫 ℋ |
| 7 | 2, 6 | ssexi 5263 | 1 ⊢ Sℋ ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 Vcvv 3429 ⊆ wss 3889 𝒫 cpw 4541 ℋchba 30990 Sℋ csh 30999 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 ax-sep 5231 ax-pow 5307 ax-hilex 31070 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-br 5086 df-opab 5148 df-xp 5637 df-cnv 5639 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-sh 31278 |
| This theorem is referenced by: chex 31297 |
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