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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 31292 | . . 3 ⊢ ℋ ∈ V | |
| 2 | 1 | pwex 5352 | . 2 ⊢ 𝒫 ℋ ∈ V |
| 3 | shss 31503 | . . . 4 ⊢ (𝑥 ∈ Sℋ → 𝑥 ⊆ ℋ) | |
| 4 | velpw 4572 | . . . 4 ⊢ (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ) | |
| 5 | 3, 4 | sylibr 237 | . . 3 ⊢ (𝑥 ∈ Sℋ → 𝑥 ∈ 𝒫 ℋ) |
| 6 | 5 | ssriv 3949 | . 2 ⊢ Sℋ ⊆ 𝒫 ℋ |
| 7 | 2, 6 | ssexi 5293 | 1 ⊢ Sℋ ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2149 Vcvv 3463 ⊆ wss 3913 𝒫 cpw 4567 ℋchba 31212 Sℋ 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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