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| Mirrors > Home > MPE Home > Th. List > ocvocv | Structured version Visualization version GIF version | ||
| Description: A set is contained in its double orthocomplement. (Contributed by Mario Carneiro, 13-Oct-2015.) |
| Ref | Expression |
|---|---|
| ocvss.v | ⊢ 𝑉 = (Base‘𝑊) |
| ocvss.o | ⊢ ⊥ = (ocv‘𝑊) |
| Ref | Expression |
|---|---|
| ocvocv | ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → 𝑆 ⊆ ( ⊥ ‘( ⊥ ‘𝑆))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ocvss.v | . . . . . 6 ⊢ 𝑉 = (Base‘𝑊) | |
| 2 | ocvss.o | . . . . . 6 ⊢ ⊥ = (ocv‘𝑊) | |
| 3 | 1, 2 | ocvss 21648 | . . . . 5 ⊢ ( ⊥ ‘𝑆) ⊆ 𝑉 |
| 4 | 3 | a1i 11 | . . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → ( ⊥ ‘𝑆) ⊆ 𝑉) |
| 5 | simpr 486 | . . . . 5 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → 𝑆 ⊆ 𝑉) | |
| 6 | 5 | sselda 3916 | . . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑉) |
| 7 | eqid 2741 | . . . . . . . . 9 ⊢ (·𝑖‘𝑊) = (·𝑖‘𝑊) | |
| 8 | eqid 2741 | . . . . . . . . 9 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
| 9 | eqid 2741 | . . . . . . . . 9 ⊢ (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊)) | |
| 10 | 1, 7, 8, 9, 2 | ocvi 21647 | . . . . . . . 8 ⊢ ((𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑥 ∈ 𝑆) → (𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊))) |
| 11 | 10 | ancoms 460 | . . . . . . 7 ⊢ ((𝑥 ∈ 𝑆 ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → (𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊))) |
| 12 | 11 | adantll 721 | . . . . . 6 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → (𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊))) |
| 13 | simplll 781 | . . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → 𝑊 ∈ PreHil) | |
| 14 | 4 | sselda 3916 | . . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → 𝑦 ∈ 𝑉) |
| 15 | 6 | adantr 482 | . . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → 𝑥 ∈ 𝑉) |
| 16 | 8, 7, 1, 9 | iporthcom 21613 | . . . . . . 7 ⊢ ((𝑊 ∈ PreHil ∧ 𝑦 ∈ 𝑉 ∧ 𝑥 ∈ 𝑉) → ((𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)) ↔ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊)))) |
| 17 | 13, 14, 15, 16 | syl3anc 1380 | . . . . . 6 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → ((𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊)) ↔ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊)))) |
| 18 | 12, 17 | mpbid 234 | . . . . 5 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))) |
| 19 | 18 | ralrimiva 3133 | . . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → ∀𝑦 ∈ ( ⊥ ‘𝑆)(𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))) |
| 20 | 1, 7, 8, 9, 2 | elocv 21646 | . . . 4 ⊢ (𝑥 ∈ ( ⊥ ‘( ⊥ ‘𝑆)) ↔ (( ⊥ ‘𝑆) ⊆ 𝑉 ∧ 𝑥 ∈ 𝑉 ∧ ∀𝑦 ∈ ( ⊥ ‘𝑆)(𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊)))) |
| 21 | 4, 6, 19, 20 | syl3anbrc 1351 | . . 3 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ ( ⊥ ‘( ⊥ ‘𝑆))) |
| 22 | 21 | ex 414 | . 2 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → (𝑥 ∈ 𝑆 → 𝑥 ∈ ( ⊥ ‘( ⊥ ‘𝑆)))) |
| 23 | 22 | ssrdv 3922 | 1 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → 𝑆 ⊆ ( ⊥ ‘( ⊥ ‘𝑆))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 397 = wceq 1548 ∈ wcel 2121 ∀wral 3055 ⊆ wss 3884 ‘cfv 6488 (class class class)co 7359 Basecbs 17174 Scalarcsca 17218 ·𝑖cip 17220 0gc0g 17397 PreHilcphl 21602 ocvcocv 21638 |
| 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 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7681 ax-cnex 11090 ax-resscn 11091 ax-1cn 11092 ax-icn 11093 ax-addcl 11094 ax-addrcl 11095 ax-mulcl 11096 ax-mulrcl 11097 ax-mulcom 11098 ax-addass 11099 ax-mulass 11100 ax-distr 11101 ax-i2m1 11102 ax-1ne0 11103 ax-1rid 11104 ax-rnegex 11105 ax-rrecex 11106 ax-cnre 11107 ax-pre-lttri 11108 ax-pre-lttrn 11109 ax-pre-ltadd 11110 ax-pre-mulgt0 11111 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-nel 3041 df-ral 3056 df-rex 3066 df-rmo 3346 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3725 df-csb 3833 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-pss 3904 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6255 df-ord 6316 df-on 6317 df-lim 6318 df-suc 6319 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-riota 7316 df-ov 7362 df-oprab 7363 df-mpo 7364 df-om 7810 df-1st 7933 df-2nd 7934 df-tpos 8168 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8343 df-er 8637 df-map 8769 df-en 8888 df-dom 8889 df-sdom 8890 df-pnf 11177 df-mnf 11178 df-xr 11179 df-ltxr 11180 df-le 11181 df-sub 11375 df-neg 11376 df-nn 12170 df-2 12239 df-3 12240 df-4 12241 df-5 12242 df-6 12243 df-7 12244 df-8 12245 df-sets 17129 df-slot 17147 df-ndx 17159 df-base 17175 df-plusg 17228 df-mulr 17229 df-sca 17231 df-vsca 17232 df-ip 17233 df-0g 17399 df-mgm 18603 df-sgrp 18682 df-mnd 18698 df-mhm 18746 df-grp 18907 df-ghm 19183 df-mgp 20116 df-ur 20157 df-ring 20210 df-oppr 20311 df-rhm 20446 df-staf 20814 df-srng 20815 df-lmod 20855 df-lmhm 21015 df-lvec 21096 df-sra 21166 df-rgmod 21167 df-phl 21604 df-ocv 21641 |
| This theorem is referenced by: ocvsscon 21653 ocvlsp 21654 iscss2 21664 ocvcss 21665 mrccss 21672 |
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