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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 28079 | . 2 ⊢ (𝐻 ∈ Cℋ ↔ (𝐻 ∈ Sℋ ∧ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) ⊆ 𝐻)) | |
2 | alcom 2037 | . . . . 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 1902 | . . . . . . . 8 ⊢ (∀𝑓((𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ (∃𝑓(𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻)) | |
4 | vex 3203 | . . . . . . . . . 10 ⊢ 𝑥 ∈ V | |
5 | 4 | elima2 5472 | . . . . . . . . 9 ⊢ (𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) ↔ ∃𝑓(𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥)) |
6 | 5 | imbi1i 339 | . . . . . . . 8 ⊢ ((𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) → 𝑥 ∈ 𝐻) ↔ (∃𝑓(𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻)) |
7 | 3, 6 | bitr4i 267 | . . . . . . 7 ⊢ (∀𝑓((𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ (𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) → 𝑥 ∈ 𝐻)) |
8 | 7 | albii 1747 | . . . . . 6 ⊢ (∀𝑥∀𝑓((𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ∀𝑥(𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) → 𝑥 ∈ 𝐻)) |
9 | dfss2 3591 | . . . . . 6 ⊢ (( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) ⊆ 𝐻 ↔ ∀𝑥(𝑥 ∈ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) → 𝑥 ∈ 𝐻)) | |
10 | 8, 9 | bitr4i 267 | . . . . 5 ⊢ (∀𝑥∀𝑓((𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) ⊆ 𝐻) |
11 | 2, 10 | bitri 264 | . . . 4 ⊢ (∀𝑓∀𝑥((𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) ⊆ 𝐻) |
12 | nnex 11026 | . . . . . . . 8 ⊢ ℕ ∈ V | |
13 | elmapg 7870 | . . . . . . . 8 ⊢ ((𝐻 ∈ Sℋ ∧ ℕ ∈ V) → (𝑓 ∈ (𝐻 ↑𝑚 ℕ) ↔ 𝑓:ℕ⟶𝐻)) | |
14 | 12, 13 | mpan2 707 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝑓 ∈ (𝐻 ↑𝑚 ℕ) ↔ 𝑓:ℕ⟶𝐻)) |
15 | 14 | anbi1d 741 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → ((𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) ↔ (𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥))) |
16 | 15 | imbi1d 331 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (((𝑓 ∈ (𝐻 ↑𝑚 ℕ) ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻) ↔ ((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
17 | 16 | 2albidv 1851 | . . . 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 | syl5bbr 274 | . . 3 ⊢ (𝐻 ∈ Sℋ → (( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) ⊆ 𝐻 ↔ ∀𝑓∀𝑥((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
19 | 18 | pm5.32i 669 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ ( ⇝𝑣 “ (𝐻 ↑𝑚 ℕ)) ⊆ 𝐻) ↔ (𝐻 ∈ Sℋ ∧ ∀𝑓∀𝑥((𝑓:ℕ⟶𝐻 ∧ 𝑓 ⇝𝑣 𝑥) → 𝑥 ∈ 𝐻))) |
20 | 1, 19 | bitri 264 | 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 196 ∧ wa 384 ∀wal 1481 ∃wex 1704 ∈ wcel 1990 Vcvv 3200 ⊆ wss 3574 class class class wbr 4653 “ cima 5117 ⟶wf 5884 (class class class)co 6650 ↑𝑚 cmap 7857 ℕcn 11020 ⇝𝑣 chli 27784 Sℋ csh 27785 Cℋ cch 27786 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-i2m1 10004 ax-1ne0 10005 ax-rrecex 10008 ax-cnre 10009 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-map 7859 df-nn 11021 df-ch 28078 |
This theorem is referenced by: chlimi 28091 isch3 28098 helch 28100 hsn0elch 28105 chintcli 28190 chscl 28500 nlelchi 28920 hmopidmchi 29010 |
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