lcdlss - Mathbox for Norm Megill

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Theorem lcdlss 39560

Description: Subspaces of a dual vector space of functionals with closed kernels. (Contributed by NM, 13-Mar-2015.)

**Hypotheses**
Ref	Expression
lcdlss.h	⊢ 𝐻 = (LHyp‘𝐾)
lcdlss.o	⊢ 𝑂 = ((ocH‘𝐾)‘𝑊)
lcdlss.c	⊢ 𝐶 = ((LCDual‘𝐾)‘𝑊)
lcdlss.s	⊢ 𝑆 = (LSubSp‘𝐶)
lcdlss.u	⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
lcdlss.f	⊢ 𝐹 = (LFnl‘𝑈)
lcdlss.l	⊢ 𝐿 = (LKer‘𝑈)
lcdlss.d	⊢ 𝐷 = (LDual‘𝑈)
lcdlss.t	⊢ 𝑇 = (LSubSp‘𝐷)
lcdlss.b	⊢ 𝐵 = {𝑓 ∈ 𝐹 ∣ (𝑂‘(𝑂‘(𝐿‘𝑓))) = (𝐿‘𝑓)}
lcdlss.k	⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))

**Assertion**
Ref	Expression
lcdlss	⊢ (𝜑 → 𝑆 = (𝑇 ∩ 𝒫 𝐵))

Distinct variable groups: 𝐷,𝑓 𝑓,𝐹 𝑓,𝐾 𝑓,𝐿 𝑓,𝑂 𝑈,𝑓 𝑓,𝑊 Allowed substitution hints: 𝜑(𝑓) 𝐵(𝑓) 𝐶(𝑓) 𝑆(𝑓) 𝑇(𝑓) 𝐻(𝑓)

Proof of Theorem lcdlss Dummy variable 𝑢 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		lcdlss.s	. . . . . 6 ⊢ 𝑆 = (LSubSp‘𝐶)
2		lcdlss.h	. . . . . . . 8 ⊢ 𝐻 = (LHyp‘𝐾)
3		lcdlss.o	. . . . . . . 8 ⊢ 𝑂 = ((ocH‘𝐾)‘𝑊)
4		lcdlss.c	. . . . . . . 8 ⊢ 𝐶 = ((LCDual‘𝐾)‘𝑊)
5		lcdlss.u	. . . . . . . 8 ⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
6		lcdlss.f	. . . . . . . 8 ⊢ 𝐹 = (LFnl‘𝑈)
7		lcdlss.l	. . . . . . . 8 ⊢ 𝐿 = (LKer‘𝑈)
8		lcdlss.d	. . . . . . . 8 ⊢ 𝐷 = (LDual‘𝑈)
9		lcdlss.k	. . . . . . . 8 ⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
10		lcdlss.b	. . . . . . . 8 ⊢ 𝐵 = {𝑓 ∈ 𝐹 ∣ (𝑂‘(𝑂‘(𝐿‘𝑓))) = (𝐿‘𝑓)}
11	2, 3, 4, 5, 6, 7, 8, 9, 10	lcdval2 39531	. . . . . . 7 ⊢ (𝜑 → 𝐶 = (𝐷 ↾_s 𝐵))
12	11	fveq2d 6760	. . . . . 6 ⊢ (𝜑 → (LSubSp‘𝐶) = (LSubSp‘(𝐷 ↾_s 𝐵)))
13	1, 12	syl5eq 2791	. . . . 5 ⊢ (𝜑 → 𝑆 = (LSubSp‘(𝐷 ↾_s 𝐵)))
14	13	eleq2d 2824	. . . 4 ⊢ (𝜑 → (𝑢 ∈ 𝑆 ↔ 𝑢 ∈ (LSubSp‘(𝐷 ↾_s 𝐵))))
15	2, 5, 9	dvhlmod 39051	. . . . . 6 ⊢ (𝜑 → 𝑈 ∈ LMod)
16	8, 15	lduallmod 37094	. . . . 5 ⊢ (𝜑 → 𝐷 ∈ LMod)
17		lcdlss.t	. . . . . 6 ⊢ 𝑇 = (LSubSp‘𝐷)
18	2, 5, 3, 6, 7, 8, 17, 10, 9	lclkr 39474	. . . . 5 ⊢ (𝜑 → 𝐵 ∈ 𝑇)
19		eqid 2738	. . . . . 6 ⊢ (𝐷 ↾_s 𝐵) = (𝐷 ↾_s 𝐵)
20		eqid 2738	. . . . . 6 ⊢ (LSubSp‘(𝐷 ↾_s 𝐵)) = (LSubSp‘(𝐷 ↾_s 𝐵))
21	19, 17, 20	lsslss 20138	. . . . 5 ⊢ ((𝐷 ∈ LMod ∧ 𝐵 ∈ 𝑇) → (𝑢 ∈ (LSubSp‘(𝐷 ↾_s 𝐵)) ↔ (𝑢 ∈ 𝑇 ∧ 𝑢 ⊆ 𝐵)))
22	16, 18, 21	syl2anc 583	. . . 4 ⊢ (𝜑 → (𝑢 ∈ (LSubSp‘(𝐷 ↾_s 𝐵)) ↔ (𝑢 ∈ 𝑇 ∧ 𝑢 ⊆ 𝐵)))
23	14, 22	bitrd 278	. . 3 ⊢ (𝜑 → (𝑢 ∈ 𝑆 ↔ (𝑢 ∈ 𝑇 ∧ 𝑢 ⊆ 𝐵)))
24		elin 3899	. . . 4 ⊢ (𝑢 ∈ (𝑇 ∩ 𝒫 𝐵) ↔ (𝑢 ∈ 𝑇 ∧ 𝑢 ∈ 𝒫 𝐵))
25		velpw 4535	. . . . 5 ⊢ (𝑢 ∈ 𝒫 𝐵 ↔ 𝑢 ⊆ 𝐵)
26	25	anbi2i 622	. . . 4 ⊢ ((𝑢 ∈ 𝑇 ∧ 𝑢 ∈ 𝒫 𝐵) ↔ (𝑢 ∈ 𝑇 ∧ 𝑢 ⊆ 𝐵))
27	24, 26	bitr2i 275	. . 3 ⊢ ((𝑢 ∈ 𝑇 ∧ 𝑢 ⊆ 𝐵) ↔ 𝑢 ∈ (𝑇 ∩ 𝒫 𝐵))
28	23, 27	bitrdi 286	. 2 ⊢ (𝜑 → (𝑢 ∈ 𝑆 ↔ 𝑢 ∈ (𝑇 ∩ 𝒫 𝐵)))
29	28	eqrdv 2736	1 ⊢ (𝜑 → 𝑆 = (𝑇 ∩ 𝒫 𝐵))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 {crab 3067 ∩ cin 3882 ⊆ wss 3883 𝒫 cpw 4530 ‘cfv 6418 (class class class)co 7255 ↾_s cress 16867 LModclmod 20038 LSubSpclss 20108 LFnlclfn 36998 LKerclk 37026 LDualcld 37064 HLchlt 37291 LHypclh 37925 DVecHcdvh 39019 ocHcoch 39288 LCDualclcd 39527

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-riotaBAD 36894

This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-iin 4924 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-of 7511 df-om 7688 df-1st 7804 df-2nd 7805 df-tpos 8013 df-undef 8060 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-map 8575 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-5 11969 df-6 11970 df-n0 12164 df-z 12250 df-uz 12512 df-fz 13169 df-struct 16776 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-ress 16868 df-plusg 16901 df-mulr 16902 df-sca 16904 df-vsca 16905 df-0g 17069 df-mre 17212 df-mrc 17213 df-acs 17215 df-proset 17928 df-poset 17946 df-plt 17963 df-lub 17979 df-glb 17980 df-join 17981 df-meet 17982 df-p0 18058 df-p1 18059 df-lat 18065 df-clat 18132 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-submnd 18346 df-grp 18495 df-minusg 18496 df-sbg 18497 df-subg 18667 df-cntz 18838 df-oppg 18865 df-lsm 19156 df-cmn 19303 df-abl 19304 df-mgp 19636 df-ur 19653 df-ring 19700 df-oppr 19777 df-dvdsr 19798 df-unit 19799 df-invr 19829 df-dvr 19840 df-drng 19908 df-lmod 20040 df-lss 20109 df-lsp 20149 df-lvec 20280 df-lsatoms 36917 df-lshyp 36918 df-lcv 36960 df-lfl 36999 df-lkr 37027 df-ldual 37065 df-oposet 37117 df-ol 37119 df-oml 37120 df-covers 37207 df-ats 37208 df-atl 37239 df-cvlat 37263 df-hlat 37292 df-llines 37439 df-lplanes 37440 df-lvols 37441 df-lines 37442 df-psubsp 37444 df-pmap 37445 df-padd 37737 df-lhyp 37929 df-laut 37930 df-ldil 38045 df-ltrn 38046 df-trl 38100 df-tgrp 38684 df-tendo 38696 df-edring 38698 df-dveca 38944 df-disoa 38970 df-dvech 39020 df-dib 39080 df-dic 39114 df-dih 39170 df-doch 39289 df-djh 39336 df-lcdual 39528

This theorem is referenced by: lcdlss2N 39561 mapdrn2 39592

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