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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 31329 | . . 3 ⊢ ℋ ∈ V | |
| 2 | 1 | pwex 5353 | . 2 ⊢ 𝒫 ℋ ∈ V |
| 3 | shss 31540 | . . . 4 ⊢ (𝑥 ∈ Sℋ → 𝑥 ⊆ ℋ) | |
| 4 | velpw 4568 | . . . 4 ⊢ (𝑥 ∈ 𝒫 ℋ ↔ 𝑥 ⊆ ℋ) | |
| 5 | 3, 4 | sylibr 237 | . . 3 ⊢ (𝑥 ∈ Sℋ → 𝑥 ∈ 𝒫 ℋ) |
| 6 | 5 | ssriv 3942 | . 2 ⊢ Sℋ ⊆ 𝒫 ℋ |
| 7 | 2, 6 | ssexi 5294 | 1 ⊢ Sℋ ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2143 Vcvv 3455 ⊆ wss 3906 𝒫 cpw 4563 ℋchba 31249 Sℋ csh 31258 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 ax-sep 5258 ax-pow 5338 ax-hilex 31329 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-br 5111 df-opab 5175 df-xp 5669 df-cnv 5671 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-sh 31537 |
| This theorem is referenced by: chex 31556 |
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