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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 21627 | . . . . 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 21626 | . . . . . . . 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 21592 | . . . . . . 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 21625 | . . . 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 6490 (class class class)co 7358 Basecbs 17137 Scalarcsca 17181 ·𝑖cip 17183 0gc0g 17360 PreHilcphl 21581 ocvcocv 21617 |
| 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 5212 ax-sep 5231 ax-nul 5241 ax-pow 5300 ax-pr 5368 ax-un 7680 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 |
| 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 5517 df-eprel 5522 df-po 5530 df-so 5531 df-fr 5575 df-we 5577 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-1st 7933 df-2nd 7934 df-tpos 8167 df-frecs 8222 df-wrecs 8253 df-recs 8302 df-rdg 8340 df-er 8634 df-map 8766 df-en 8885 df-dom 8886 df-sdom 8887 df-pnf 11169 df-mnf 11170 df-xr 11171 df-ltxr 11172 df-le 11173 df-sub 11367 df-neg 11368 df-nn 12147 df-2 12209 df-3 12210 df-4 12211 df-5 12212 df-6 12213 df-7 12214 df-8 12215 df-sets 17092 df-slot 17110 df-ndx 17122 df-base 17138 df-plusg 17191 df-mulr 17192 df-sca 17194 df-vsca 17195 df-ip 17196 df-0g 17362 df-mgm 18566 df-sgrp 18645 df-mnd 18661 df-mhm 18709 df-grp 18870 df-ghm 19146 df-mgp 20080 df-ur 20121 df-ring 20174 df-oppr 20275 df-rhm 20410 df-staf 20774 df-srng 20775 df-lmod 20815 df-lmhm 20976 df-lvec 21057 df-sra 21127 df-rgmod 21128 df-phl 21583 df-ocv 21620 |
| This theorem is referenced by: ocvsscon 21632 ocvlsp 21633 iscss2 21643 ocvcss 21644 mrccss 21651 |
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