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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 21647 | . . . . 5 ⊢ ( ⊥ ‘𝑆) ⊆ 𝑉 |
| 4 | 3 | a1i 11 | . . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → ( ⊥ ‘𝑆) ⊆ 𝑉) |
| 5 | simpr 484 | . . . . 5 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → 𝑆 ⊆ 𝑉) | |
| 6 | 5 | sselda 3922 | . . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑉) |
| 7 | eqid 2737 | . . . . . . . . 9 ⊢ (·𝑖‘𝑊) = (·𝑖‘𝑊) | |
| 8 | eqid 2737 | . . . . . . . . 9 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
| 9 | eqid 2737 | . . . . . . . . 9 ⊢ (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊)) | |
| 10 | 1, 7, 8, 9, 2 | ocvi 21646 | . . . . . . . 8 ⊢ ((𝑦 ∈ ( ⊥ ‘𝑆) ∧ 𝑥 ∈ 𝑆) → (𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊))) |
| 11 | 10 | ancoms 458 | . . . . . . 7 ⊢ ((𝑥 ∈ 𝑆 ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → (𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊))) |
| 12 | 11 | adantll 715 | . . . . . 6 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → (𝑦(·𝑖‘𝑊)𝑥) = (0g‘(Scalar‘𝑊))) |
| 13 | simplll 775 | . . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → 𝑊 ∈ PreHil) | |
| 14 | 4 | sselda 3922 | . . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → 𝑦 ∈ 𝑉) |
| 15 | 6 | adantr 480 | . . . . . . 7 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → 𝑥 ∈ 𝑉) |
| 16 | 8, 7, 1, 9 | iporthcom 21612 | . . . . . . 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 1374 | . . . . . 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 232 | . . . . 5 ⊢ ((((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) ∧ 𝑦 ∈ ( ⊥ ‘𝑆)) → (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))) |
| 19 | 18 | ralrimiva 3130 | . . . 4 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → ∀𝑦 ∈ ( ⊥ ‘𝑆)(𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))) |
| 20 | 1, 7, 8, 9, 2 | elocv 21645 | . . . 4 ⊢ (𝑥 ∈ ( ⊥ ‘( ⊥ ‘𝑆)) ↔ (( ⊥ ‘𝑆) ⊆ 𝑉 ∧ 𝑥 ∈ 𝑉 ∧ ∀𝑦 ∈ ( ⊥ ‘𝑆)(𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊)))) |
| 21 | 4, 6, 19, 20 | syl3anbrc 1345 | . . 3 ⊢ (((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ ( ⊥ ‘( ⊥ ‘𝑆))) |
| 22 | 21 | ex 412 | . 2 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → (𝑥 ∈ 𝑆 → 𝑥 ∈ ( ⊥ ‘( ⊥ ‘𝑆)))) |
| 23 | 22 | ssrdv 3928 | 1 ⊢ ((𝑊 ∈ PreHil ∧ 𝑆 ⊆ 𝑉) → 𝑆 ⊆ ( ⊥ ‘( ⊥ ‘𝑆))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ⊆ wss 3890 ‘cfv 6496 (class class class)co 7364 Basecbs 17176 Scalarcsca 17220 ·𝑖cip 17222 0gc0g 17399 PreHilcphl 21601 ocvcocv 21637 |
| 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-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5306 ax-pr 5374 ax-un 7686 ax-cnex 11091 ax-resscn 11092 ax-1cn 11093 ax-icn 11094 ax-addcl 11095 ax-addrcl 11096 ax-mulcl 11097 ax-mulrcl 11098 ax-mulcom 11099 ax-addass 11100 ax-mulass 11101 ax-distr 11102 ax-i2m1 11103 ax-1ne0 11104 ax-1rid 11105 ax-rnegex 11106 ax-rrecex 11107 ax-cnre 11108 ax-pre-lttri 11109 ax-pre-lttrn 11110 ax-pre-ltadd 11111 ax-pre-mulgt0 11112 |
| 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-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5523 df-eprel 5528 df-po 5536 df-so 5537 df-fr 5581 df-we 5583 df-xp 5634 df-rel 5635 df-cnv 5636 df-co 5637 df-dm 5638 df-rn 5639 df-res 5640 df-ima 5641 df-pred 6263 df-ord 6324 df-on 6325 df-lim 6326 df-suc 6327 df-iota 6452 df-fun 6498 df-fn 6499 df-f 6500 df-f1 6501 df-fo 6502 df-f1o 6503 df-fv 6504 df-riota 7321 df-ov 7367 df-oprab 7368 df-mpo 7369 df-om 7815 df-1st 7939 df-2nd 7940 df-tpos 8173 df-frecs 8228 df-wrecs 8259 df-recs 8308 df-rdg 8346 df-er 8640 df-map 8772 df-en 8891 df-dom 8892 df-sdom 8893 df-pnf 11178 df-mnf 11179 df-xr 11180 df-ltxr 11181 df-le 11182 df-sub 11376 df-neg 11377 df-nn 12172 df-2 12241 df-3 12242 df-4 12243 df-5 12244 df-6 12245 df-7 12246 df-8 12247 df-sets 17131 df-slot 17149 df-ndx 17161 df-base 17177 df-plusg 17230 df-mulr 17231 df-sca 17233 df-vsca 17234 df-ip 17235 df-0g 17401 df-mgm 18605 df-sgrp 18684 df-mnd 18700 df-mhm 18748 df-grp 18909 df-ghm 19185 df-mgp 20119 df-ur 20160 df-ring 20213 df-oppr 20314 df-rhm 20449 df-staf 20813 df-srng 20814 df-lmod 20854 df-lmhm 21014 df-lvec 21095 df-sra 21165 df-rgmod 21166 df-phl 21603 df-ocv 21640 |
| This theorem is referenced by: ocvsscon 21652 ocvlsp 21653 iscss2 21663 ocvcss 21664 mrccss 21671 |
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