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| Mirrors > Home > MPE Home > Th. List > pjcss | Structured version Visualization version GIF version | ||
| Description: A projection subspace is an (algebraically) closed subspace. (Contributed by Mario Carneiro, 16-Oct-2015.) |
| Ref | Expression |
|---|---|
| pjcss.k | ⊢ 𝐾 = (proj‘𝑊) |
| pjcss.c | ⊢ 𝐶 = (ClSubSp‘𝑊) |
| Ref | Expression |
|---|---|
| pjcss | ⊢ (𝑊 ∈ PreHil → dom 𝐾 ⊆ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pjcss.c | . . . 4 ⊢ 𝐶 = (ClSubSp‘𝑊) | |
| 2 | eqid 2761 | . . . 4 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
| 3 | eqid 2761 | . . . 4 ⊢ (ocv‘𝑊) = (ocv‘𝑊) | |
| 4 | eqid 2761 | . . . 4 ⊢ (LSSum‘𝑊) = (LSSum‘𝑊) | |
| 5 | simpl 488 | . . . 4 ⊢ ((𝑊 ∈ PreHil ∧ 𝑥 ∈ dom 𝐾) → 𝑊 ∈ PreHil) | |
| 6 | eqid 2761 | . . . . . . 7 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊) | |
| 7 | pjcss.k | . . . . . . 7 ⊢ 𝐾 = (proj‘𝑊) | |
| 8 | 2, 6, 3, 4, 7 | pjdm2 21997 | . . . . . 6 ⊢ (𝑊 ∈ PreHil → (𝑥 ∈ dom 𝐾 ↔ (𝑥 ∈ (LSubSp‘𝑊) ∧ (𝑥(LSSum‘𝑊)((ocv‘𝑊)‘𝑥)) = (Base‘𝑊)))) |
| 9 | 8 | simprbda 504 | . . . . 5 ⊢ ((𝑊 ∈ PreHil ∧ 𝑥 ∈ dom 𝐾) → 𝑥 ∈ (LSubSp‘𝑊)) |
| 10 | 2, 6 | lssss 21191 | . . . . 5 ⊢ (𝑥 ∈ (LSubSp‘𝑊) → 𝑥 ⊆ (Base‘𝑊)) |
| 11 | 9, 10 | syl 18 | . . . 4 ⊢ ((𝑊 ∈ PreHil ∧ 𝑥 ∈ dom 𝐾) → 𝑥 ⊆ (Base‘𝑊)) |
| 12 | 2, 3 | ocvss 21956 | . . . . 5 ⊢ ((ocv‘𝑊)‘((ocv‘𝑊)‘𝑥)) ⊆ (Base‘𝑊) |
| 13 | 8 | simplbda 505 | . . . . 5 ⊢ ((𝑊 ∈ PreHil ∧ 𝑥 ∈ dom 𝐾) → (𝑥(LSSum‘𝑊)((ocv‘𝑊)‘𝑥)) = (Base‘𝑊)) |
| 14 | 12, 13 | sseqtrrid 3974 | . . . 4 ⊢ ((𝑊 ∈ PreHil ∧ 𝑥 ∈ dom 𝐾) → ((ocv‘𝑊)‘((ocv‘𝑊)‘𝑥)) ⊆ (𝑥(LSSum‘𝑊)((ocv‘𝑊)‘𝑥))) |
| 15 | 1, 2, 3, 4, 5, 11, 14 | lsmcss 21978 | . . 3 ⊢ ((𝑊 ∈ PreHil ∧ 𝑥 ∈ dom 𝐾) → 𝑥 ∈ 𝐶) |
| 16 | 15 | ex 418 | . 2 ⊢ (𝑊 ∈ PreHil → (𝑥 ∈ dom 𝐾 → 𝑥 ∈ 𝐶)) |
| 17 | 16 | ssrdv 3937 | 1 ⊢ (𝑊 ∈ PreHil → dom 𝐾 ⊆ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ⊆ wss 3899 dom cdm 5651 ‘cfv 6531 (class class class)co 7412 Basecbs 17367 LSSumclsm 19828 LSubSpclss 21186 PreHilcphl 21910 ocvcocv 21946 ClSubSpccss 21947 projcpj 21986 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-1st 7990 df-2nd 7991 df-tpos 8227 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-er 8701 df-map 8833 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 df-nn 12317 df-2 12386 df-3 12387 df-4 12388 df-5 12389 df-6 12390 df-7 12391 df-8 12392 df-sets 17322 df-slot 17340 df-ndx 17352 df-base 17368 df-ress 17389 df-plusg 17421 df-mulr 17422 df-sca 17424 df-vsca 17425 df-ip 17426 df-0g 17592 df-mgm 18796 df-sgrp 18888 df-mnd 18904 df-mhm 18958 df-grp 19127 df-minusg 19128 df-sbg 19129 df-subg 19313 df-ghm 19408 df-cntz 19511 df-lsm 19830 df-pj1 19831 df-cmn 19976 df-abl 19977 df-mgp 20341 df-rng 20355 df-ur 20388 df-ring 20441 df-oppr 20547 df-rhm 20682 df-staf 21076 df-srng 21077 df-lmod 21117 df-lss 21187 df-lmhm 21277 df-lvec 21358 df-sra 21428 df-rgmod 21429 df-phl 21912 df-ocv 21949 df-css 21950 df-pj 21989 |
| This theorem is used by: ocvpj 22003 ishil2 22005 cldcss 25742 hlhil 25744 |
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