| Hilbert Space Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > HSE Home > Th. List > ocin | Structured version Visualization version GIF version | ||
| Description: Intersection of a Hilbert subspace and its complement. Part of Proposition 1 of [Kalmbach] p. 65. (Contributed by NM, 11-Oct-1999.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ocin | ⊢ (𝐴 ∈ Sℋ → (𝐴 ∩ (⊥‘𝐴)) = 0ℋ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | shocel 31369 | . . . . . . 7 ⊢ (𝐴 ∈ Sℋ → (𝑥 ∈ (⊥‘𝐴) ↔ (𝑥 ∈ ℋ ∧ ∀𝑦 ∈ 𝐴 (𝑥 ·ih 𝑦) = 0))) | |
| 2 | oveq2 7376 | . . . . . . . . . 10 ⊢ (𝑦 = 𝑥 → (𝑥 ·ih 𝑦) = (𝑥 ·ih 𝑥)) | |
| 3 | 2 | eqeq1d 2739 | . . . . . . . . 9 ⊢ (𝑦 = 𝑥 → ((𝑥 ·ih 𝑦) = 0 ↔ (𝑥 ·ih 𝑥) = 0)) |
| 4 | 3 | rspccv 3575 | . . . . . . . 8 ⊢ (∀𝑦 ∈ 𝐴 (𝑥 ·ih 𝑦) = 0 → (𝑥 ∈ 𝐴 → (𝑥 ·ih 𝑥) = 0)) |
| 5 | his6 31186 | . . . . . . . . 9 ⊢ (𝑥 ∈ ℋ → ((𝑥 ·ih 𝑥) = 0 ↔ 𝑥 = 0ℎ)) | |
| 6 | 5 | biimpd 229 | . . . . . . . 8 ⊢ (𝑥 ∈ ℋ → ((𝑥 ·ih 𝑥) = 0 → 𝑥 = 0ℎ)) |
| 7 | 4, 6 | sylan9r 508 | . . . . . . 7 ⊢ ((𝑥 ∈ ℋ ∧ ∀𝑦 ∈ 𝐴 (𝑥 ·ih 𝑦) = 0) → (𝑥 ∈ 𝐴 → 𝑥 = 0ℎ)) |
| 8 | 1, 7 | biimtrdi 253 | . . . . . 6 ⊢ (𝐴 ∈ Sℋ → (𝑥 ∈ (⊥‘𝐴) → (𝑥 ∈ 𝐴 → 𝑥 = 0ℎ))) |
| 9 | 8 | com23 86 | . . . . 5 ⊢ (𝐴 ∈ Sℋ → (𝑥 ∈ 𝐴 → (𝑥 ∈ (⊥‘𝐴) → 𝑥 = 0ℎ))) |
| 10 | 9 | impd 410 | . . . 4 ⊢ (𝐴 ∈ Sℋ → ((𝑥 ∈ 𝐴 ∧ 𝑥 ∈ (⊥‘𝐴)) → 𝑥 = 0ℎ)) |
| 11 | sh0 31303 | . . . . . 6 ⊢ (𝐴 ∈ Sℋ → 0ℎ ∈ 𝐴) | |
| 12 | oc0 31377 | . . . . . 6 ⊢ (𝐴 ∈ Sℋ → 0ℎ ∈ (⊥‘𝐴)) | |
| 13 | 11, 12 | jca 511 | . . . . 5 ⊢ (𝐴 ∈ Sℋ → (0ℎ ∈ 𝐴 ∧ 0ℎ ∈ (⊥‘𝐴))) |
| 14 | eleq1 2825 | . . . . . 6 ⊢ (𝑥 = 0ℎ → (𝑥 ∈ 𝐴 ↔ 0ℎ ∈ 𝐴)) | |
| 15 | eleq1 2825 | . . . . . 6 ⊢ (𝑥 = 0ℎ → (𝑥 ∈ (⊥‘𝐴) ↔ 0ℎ ∈ (⊥‘𝐴))) | |
| 16 | 14, 15 | anbi12d 633 | . . . . 5 ⊢ (𝑥 = 0ℎ → ((𝑥 ∈ 𝐴 ∧ 𝑥 ∈ (⊥‘𝐴)) ↔ (0ℎ ∈ 𝐴 ∧ 0ℎ ∈ (⊥‘𝐴)))) |
| 17 | 13, 16 | syl5ibrcom 247 | . . . 4 ⊢ (𝐴 ∈ Sℋ → (𝑥 = 0ℎ → (𝑥 ∈ 𝐴 ∧ 𝑥 ∈ (⊥‘𝐴)))) |
| 18 | 10, 17 | impbid 212 | . . 3 ⊢ (𝐴 ∈ Sℋ → ((𝑥 ∈ 𝐴 ∧ 𝑥 ∈ (⊥‘𝐴)) ↔ 𝑥 = 0ℎ)) |
| 19 | elin 3919 | . . 3 ⊢ (𝑥 ∈ (𝐴 ∩ (⊥‘𝐴)) ↔ (𝑥 ∈ 𝐴 ∧ 𝑥 ∈ (⊥‘𝐴))) | |
| 20 | elch0 31341 | . . 3 ⊢ (𝑥 ∈ 0ℋ ↔ 𝑥 = 0ℎ) | |
| 21 | 18, 19, 20 | 3bitr4g 314 | . 2 ⊢ (𝐴 ∈ Sℋ → (𝑥 ∈ (𝐴 ∩ (⊥‘𝐴)) ↔ 𝑥 ∈ 0ℋ)) |
| 22 | 21 | eqrdv 2735 | 1 ⊢ (𝐴 ∈ Sℋ → (𝐴 ∩ (⊥‘𝐴)) = 0ℋ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ∩ cin 3902 ‘cfv 6500 (class class class)co 7368 0cc0 11038 ℋchba 31006 ·ih csp 31009 0ℎc0v 31011 Sℋ csh 31015 ⊥cort 31017 0ℋc0h 31022 |
| 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-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-hilex 31086 ax-hfvadd 31087 ax-hv0cl 31090 ax-hfvmul 31092 ax-hvmul0 31097 ax-hfi 31166 ax-his2 31170 ax-his3 31171 ax-his4 31172 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-po 5540 df-so 5541 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-ov 7371 df-er 8645 df-en 8896 df-dom 8897 df-sdom 8898 df-pnf 11180 df-mnf 11181 df-ltxr 11183 df-sh 31294 df-oc 31339 df-ch0 31340 |
| This theorem is referenced by: ocnel 31385 chocunii 31388 pjhtheu 31481 pjpreeq 31485 omlsi 31491 ococi 31492 pjoc1i 31518 orthin 31533 ssjo 31534 chocini 31541 chscllem3 31726 |
| Copyright terms: Public domain | W3C validator |