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Mirrors > Home > HSE Home > Th. List > isch2 | Structured version Visualization version GIF version |
Description: Closed subspace 𝐻 of a Hilbert space. Definition of [Beran] p. 107. (Contributed by NM, 17-Aug-1999.) (Revised by Mario Carneiro, 23-Dec-2013.) (New usage is discouraged.) |
Ref | Expression |
---|---|
isch2 | ⊢ (𝐻 ∈ Cℋ ↔ (𝐻 ∈ Sℋ ∧ ∀𝑓∀𝑥((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | isch 29303 | . 2 ⊢ (𝐻 ∈ Cℋ ↔ (𝐻 ∈ Sℋ ∧ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) ⊆ 𝐻)) | |
2 | alcom 2160 | . . . . 5 ⊢ (∀𝑓∀𝑥((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ∀𝑥∀𝑓((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻)) | |
3 | 19.23v 1950 | . . . . . . . 8 ⊢ (∀𝑓((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ (∃𝑓(𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻)) | |
4 | vex 3412 | . . . . . . . . . 10 ⊢ 𝑥 ∈ V | |
5 | 4 | elima2 5935 | . . . . . . . . 9 ⊢ (𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) ↔ ∃𝑓(𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥)) |
6 | 5 | imbi1i 353 | . . . . . . . 8 ⊢ ((𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) → 𝑥 ∈ 𝐻) ↔ (∃𝑓(𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻)) |
7 | 3, 6 | bitr4i 281 | . . . . . . 7 ⊢ (∀𝑓((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ (𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) → 𝑥 ∈ 𝐻)) |
8 | 7 | albii 1827 | . . . . . 6 ⊢ (∀𝑥∀𝑓((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ∀𝑥(𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) → 𝑥 ∈ 𝐻)) |
9 | dfss2 3886 | . . . . . 6 ⊢ (( ⇝𝑣 “ (𝐻 ↑m ℕ)) ⊆ 𝐻 ↔ ∀𝑥(𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) → 𝑥 ∈ 𝐻)) | |
10 | 8, 9 | bitr4i 281 | . . . . 5 ⊢ (∀𝑥∀𝑓((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) ⊆ 𝐻) |
11 | 2, 10 | bitri 278 | . . . 4 ⊢ (∀𝑓∀𝑥((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) ⊆ 𝐻) |
12 | nnex 11836 | . . . . . . . 8 ⊢ ℕ ∈ V | |
13 | elmapg 8521 | . . . . . . . 8 ⊢ ((𝐻 ∈ Sℋ ∧ ℕ ∈ V) → (𝑓 ∈ (𝐻 ↑m ℕ) ↔ 𝑓:ℕ⟶𝐻)) | |
14 | 12, 13 | mpan2 691 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝑓 ∈ (𝐻 ↑m ℕ) ↔ 𝑓:ℕ⟶𝐻)) |
15 | 14 | anbi1d 633 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → ((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) ↔ (𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥))) |
16 | 15 | imbi1d 345 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
17 | 16 | 2albidv 1931 | . . . 4 ⊢ (𝐻 ∈ Sℋ → (∀𝑓∀𝑥((𝑓 ∈ (𝐻 ↑m ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ∀𝑓∀𝑥((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
18 | 11, 17 | bitr3id 288 | . . 3 ⊢ (𝐻 ∈ Sℋ → (( ⇝𝑣 “ (𝐻 ↑m ℕ)) ⊆ 𝐻 ↔ ∀𝑓∀𝑥((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
19 | 18 | pm5.32i 578 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) ⊆ 𝐻) ↔ (𝐻 ∈ Sℋ ∧ ∀𝑓∀𝑥((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
20 | 1, 19 | bitri 278 | 1 ⊢ (𝐻 ∈ Cℋ ↔ (𝐻 ∈ Sℋ ∧ ∀𝑓∀𝑥((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 ∀wal 1541 ∃wex 1787 ∈ wcel 2110 Vcvv 3408 ⊆ wss 3866 class class class wbr 5053 “ cima 5554 ⟶wf 6376 (class class class)co 7213 ↑m cmap 8508 ℕcn 11830 ⇝𝑣 chli 29008 Sℋ csh 29009 Cℋ cch 29010 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 ax-cnex 10785 ax-1cn 10787 ax-addcl 10789 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-ral 3066 df-rex 3067 df-reu 3068 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-pss 3885 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-tp 4546 df-op 4548 df-uni 4820 df-iun 4906 df-br 5054 df-opab 5116 df-mpt 5136 df-tr 5162 df-id 5455 df-eprel 5460 df-po 5468 df-so 5469 df-fr 5509 df-we 5511 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-pred 6160 df-ord 6216 df-on 6217 df-lim 6218 df-suc 6219 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-ov 7216 df-oprab 7217 df-mpo 7218 df-om 7645 df-wrecs 8047 df-recs 8108 df-rdg 8146 df-map 8510 df-nn 11831 df-ch 29302 |
This theorem is referenced by: chlimi 29315 isch3 29322 helch 29324 hsn0elch 29329 chintcli 29412 chscl 29722 nlelchi 30142 hmopidmchi 30232 |
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