dochfl1 - Mathbox for Norm Megill

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Theorem dochfl1 42231

Description: The value of the explicit functional 𝐺 is 1 at the 𝑋 that determines it. (Contributed by NM, 27-Oct-2014.)

**Hypotheses**
Ref	Expression
dochfl1.h	⊢ 𝐻 = (LHyp‘𝐾)
dochfl1.o	⊢ ⊥ = ((ocH‘𝐾)‘𝑊)
dochfl1.u	⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
dochfl1.v	⊢ 𝑉 = (Base‘𝑈)
dochfl1.a	⊢ + = (+_g‘𝑈)
dochfl1.t	⊢ · = ( ·_𝑠 ‘𝑈)
dochfl1.z	⊢ 0 = (0_g‘𝑈)
dochfl1.d	⊢ 𝐷 = (Scalar‘𝑈)
dochfl1.r	⊢ 𝑅 = (Base‘𝐷)
dochfl1.i	⊢ 1 = (1_r‘𝐷)
dochfl1.k	⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
dochfl1.x	⊢ (𝜑 → 𝑋 ∈ (𝑉 ∖ { 0 }))
dochfl1.g	⊢ 𝐺 = (𝑣 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑣 = (𝑤 + (𝑘 · 𝑋))))

**Assertion**
Ref	Expression
dochfl1	⊢ (𝜑 → (𝐺‘𝑋) = 1 )

Distinct variable groups: 𝑣,𝑘,𝑤, + 1 ,𝑘,𝑤 ⊥ ,𝑘,𝑣,𝑤 𝑅,𝑘,𝑣 · ,𝑘,𝑣,𝑤 𝑣,𝑉 𝑘,𝑋,𝑣,𝑤 𝑤, 0 Allowed substitution hints: 𝜑(𝑤,𝑣,𝑘) 𝐷(𝑤,𝑣,𝑘) 𝑅(𝑤) 𝑈(𝑤,𝑣,𝑘) 1 (𝑣) 𝐺(𝑤,𝑣,𝑘) 𝐻(𝑤,𝑣,𝑘) 𝐾(𝑤,𝑣,𝑘) 𝑉(𝑤,𝑘) 𝑊(𝑤,𝑣,𝑘) 0 (𝑣,𝑘)

**Proof of Theorem dochfl1**
Step	Hyp	Ref	Expression
1		dochfl1.x	. . . 4 ⊢ (𝜑 → 𝑋 ∈ (𝑉 ∖ { 0 }))
2	1	eldifad 3918	. . 3 ⊢ (𝜑 → 𝑋 ∈ 𝑉)
3		eqeq1 2767	. . . . . 6 ⊢ (𝑣 = 𝑋 → (𝑣 = (𝑤 + (𝑘 · 𝑋)) ↔ 𝑋 = (𝑤 + (𝑘 · 𝑋))))
4	3	rexbidv 3189	. . . . 5 ⊢ (𝑣 = 𝑋 → (∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑣 = (𝑤 + (𝑘 · 𝑋)) ↔ ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))))
5	4	riotabidv 7371	. . . 4 ⊢ (𝑣 = 𝑋 → (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑣 = (𝑤 + (𝑘 · 𝑋))) = (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))))
6		dochfl1.g	. . . 4 ⊢ 𝐺 = (𝑣 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑣 = (𝑤 + (𝑘 · 𝑋))))
7		riotaex 7373	. . . 4 ⊢ (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))) ∈ V
8	5, 6, 7	fvmpt 6991	. . 3 ⊢ (𝑋 ∈ 𝑉 → (𝐺‘𝑋) = (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))))
9	2, 8	syl 18	. 2 ⊢ (𝜑 → (𝐺‘𝑋) = (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))))
10		dochfl1.h	. . . . . 6 ⊢ 𝐻 = (LHyp‘𝐾)
11		dochfl1.u	. . . . . 6 ⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
12		dochfl1.k	. . . . . 6 ⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
13	10, 11, 12	dvhlmod 41865	. . . . 5 ⊢ (𝜑 → 𝑈 ∈ LMod)
14	2	snssd 4753	. . . . . 6 ⊢ (𝜑 → {𝑋} ⊆ 𝑉)
15		dochfl1.v	. . . . . . 7 ⊢ 𝑉 = (Base‘𝑈)
16		eqid 2763	. . . . . . 7 ⊢ (LSubSp‘𝑈) = (LSubSp‘𝑈)
17		dochfl1.o	. . . . . . 7 ⊢ ⊥ = ((ocH‘𝐾)‘𝑊)
18	10, 11, 15, 16, 17	dochlss 42109	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ {𝑋} ⊆ 𝑉) → ( ⊥ ‘{𝑋}) ∈ (LSubSp‘𝑈))
19	12, 14, 18	syl2anc 595	. . . . 5 ⊢ (𝜑 → ( ⊥ ‘{𝑋}) ∈ (LSubSp‘𝑈))
20		dochfl1.z	. . . . . 6 ⊢ 0 = (0_g‘𝑈)
21	20, 16	lss0cl 21049	. . . . 5 ⊢ ((𝑈 ∈ LMod ∧ ( ⊥ ‘{𝑋}) ∈ (LSubSp‘𝑈)) → 0 ∈ ( ⊥ ‘{𝑋}))
22	13, 19, 21	syl2anc 595	. . . 4 ⊢ (𝜑 → 0 ∈ ( ⊥ ‘{𝑋}))
23		dochfl1.d	. . . . . . . 8 ⊢ 𝐷 = (Scalar‘𝑈)
24		dochfl1.t	. . . . . . . 8 ⊢ · = ( ·_𝑠 ‘𝑈)
25		dochfl1.i	. . . . . . . 8 ⊢ 1 = (1_r‘𝐷)
26	15, 23, 24, 25	lmodvs1 20992	. . . . . . 7 ⊢ ((𝑈 ∈ LMod ∧ 𝑋 ∈ 𝑉) → ( 1 · 𝑋) = 𝑋)
27	13, 2, 26	syl2anc 595	. . . . . 6 ⊢ (𝜑 → ( 1 · 𝑋) = 𝑋)
28	27	oveq2d 7428	. . . . 5 ⊢ (𝜑 → ( 0 + ( 1 · 𝑋)) = ( 0 + 𝑋))
29		dochfl1.a	. . . . . . 7 ⊢ + = (+_g‘𝑈)
30	15, 29, 20	lmod0vlid 20994	. . . . . 6 ⊢ ((𝑈 ∈ LMod ∧ 𝑋 ∈ 𝑉) → ( 0 + 𝑋) = 𝑋)
31	13, 2, 30	syl2anc 595	. . . . 5 ⊢ (𝜑 → ( 0 + 𝑋) = 𝑋)
32	28, 31	eqtr2d 2799	. . . 4 ⊢ (𝜑 → 𝑋 = ( 0 + ( 1 · 𝑋)))
33		oveq1 7419	. . . . 5 ⊢ (𝑤 = 0 → (𝑤 + ( 1 · 𝑋)) = ( 0 + ( 1 · 𝑋)))
34	33	rspceeqv 3605	. . . 4 ⊢ (( 0 ∈ ( ⊥ ‘{𝑋}) ∧ 𝑋 = ( 0 + ( 1 · 𝑋))) → ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋)))
35	22, 32, 34	syl2anc 595	. . 3 ⊢ (𝜑 → ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋)))
36	23	lmodring 20970	. . . . 5 ⊢ (𝑈 ∈ LMod → 𝐷 ∈ Ring)
37		dochfl1.r	. . . . . 6 ⊢ 𝑅 = (Base‘𝐷)
38	37, 25	ringidcl 20349	. . . . 5 ⊢ (𝐷 ∈ Ring → 1 ∈ 𝑅)
39	13, 36, 38	3syl 19	. . . 4 ⊢ (𝜑 → 1 ∈ 𝑅)
40		eqid 2763	. . . . 5 ⊢ (LSpan‘𝑈) = (LSpan‘𝑈)
41		eqid 2763	. . . . 5 ⊢ (LSSum‘𝑈) = (LSSum‘𝑈)
42		eqid 2763	. . . . 5 ⊢ (LSHyp‘𝑈) = (LSHyp‘𝑈)
43	10, 11, 12	dvhlvec 41864	. . . . 5 ⊢ (𝜑 → 𝑈 ∈ LVec)
44	10, 17, 11, 15, 20, 42, 12, 1	dochsnshp 42208	. . . . 5 ⊢ (𝜑 → ( ⊥ ‘{𝑋}) ∈ (LSHyp‘𝑈))
45	10, 17, 11, 15, 20, 40, 41, 12, 1	dochexmidat 42214	. . . . 5 ⊢ (𝜑 → (( ⊥ ‘{𝑋})(LSSum‘𝑈)((LSpan‘𝑈)‘{𝑋})) = 𝑉)
46	15, 29, 40, 41, 42, 43, 44, 2, 2, 45, 23, 37, 24	lshpsmreu 39864	. . . 4 ⊢ (𝜑 → ∃!𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋)))
47		oveq1 7419	. . . . . . . 8 ⊢ (𝑘 = 1 → (𝑘 · 𝑋) = ( 1 · 𝑋))
48	47	oveq2d 7428	. . . . . . 7 ⊢ (𝑘 = 1 → (𝑤 + (𝑘 · 𝑋)) = (𝑤 + ( 1 · 𝑋)))
49	48	eqeq2d 2774	. . . . . 6 ⊢ (𝑘 = 1 → (𝑋 = (𝑤 + (𝑘 · 𝑋)) ↔ 𝑋 = (𝑤 + ( 1 · 𝑋))))
50	49	rexbidv 3189	. . . . 5 ⊢ (𝑘 = 1 → (∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋)) ↔ ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋))))
51	50	riota2 7394	. . . 4 ⊢ (( 1 ∈ 𝑅 ∧ ∃!𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))) → (∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋)) ↔ (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))) = 1 ))
52	39, 46, 51	syl2anc 595	. . 3 ⊢ (𝜑 → (∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋)) ↔ (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))) = 1 ))
53	35, 52	mpbid 235	. 2 ⊢ (𝜑 → (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))) = 1 )
54	9, 53	eqtrd 2798	1 ⊢ (𝜑 → (𝐺‘𝑋) = 1 )

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1570 ∈ wcel 2143 ∃wrex 3089 ∃!wreu 3367 ∖ cdif 3903 ⊆ wss 3906 {csn 4590 ↦ cmpt 5193 ‘cfv 6538 ℩crio 7368 (class class class)co 7412 Basecbs 17270 +_gcplusg 17311 Scalarcsca 17314 ·_𝑠 cvsca 17315 0_gc0g 17493 LSSumclsm 19705 1_rcur 20264 Ringcrg 20316 LModclmod 20962 LSubSpclss 21033 LSpanclspn 21073 LSHypclsh 39730 HLchlt 40105 LHypclh 40739 DVecHcdvh 41833 ocHcoch 42102

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5239 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 ax-cnex 11157 ax-resscn 11158 ax-1cn 11159 ax-icn 11160 ax-addcl 11161 ax-addrcl 11162 ax-mulcl 11163 ax-mulrcl 11164 ax-mulcom 11165 ax-addass 11166 ax-mulass 11167 ax-distr 11168 ax-i2m1 11169 ax-1ne0 11170 ax-1rid 11171 ax-rnegex 11172 ax-rrecex 11173 ax-cnre 11174 ax-pre-lttri 11175 ax-pre-lttrn 11176 ax-pre-ltadd 11177 ax-pre-mulgt0 11178 ax-riotaBAD 39708

This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-tp 4595 df-op 4597 df-uni 4874 df-int 4914 df-iun 4959 df-iin 4960 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7864 df-1st 7987 df-2nd 7988 df-tpos 8223 df-undef 8270 df-frecs 8279 df-wrecs 8310 df-recs 8359 df-rdg 8398 df-1o 8454 df-er 8695 df-map 8827 df-en 8945 df-dom 8946 df-sdom 8947 df-fin 8948 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11444 df-neg 11445 df-nn 12235 df-2 12304 df-3 12305 df-4 12306 df-5 12307 df-6 12308 df-n0 12506 df-z 12593 df-uz 12864 df-fz 13537 df-struct 17208 df-sets 17225 df-slot 17243 df-ndx 17255 df-base 17271 df-ress 17292 df-plusg 17324 df-mulr 17325 df-sca 17327 df-vsca 17328 df-0g 17495 df-proset 18351 df-poset 18370 df-plt 18385 df-lub 18401 df-glb 18402 df-join 18403 df-meet 18404 df-p0 18480 df-p1 18481 df-lat 18489 df-clat 18556 df-mgm 18699 df-sgrp 18778 df-mnd 18794 df-submnd 18843 df-grp 19004 df-minusg 19005 df-sbg 19006 df-subg 19190 df-cntz 19388 df-lsm 19707 df-cmn 19853 df-abl 19854 df-mgp 20218 df-rng 20232 df-ur 20265 df-ring 20318 df-oppr 20420 df-dvdsr 20440 df-unit 20441 df-invr 20471 df-dvr 20484 df-drng 20816 df-lmod 20964 df-lss 21034 df-lsp 21074 df-lvec 21205 df-lsatoms 39731 df-lshyp 39732 df-oposet 39931 df-ol 39933 df-oml 39934 df-covers 40021 df-ats 40022 df-atl 40053 df-cvlat 40077 df-hlat 40106 df-llines 40253 df-lplanes 40254 df-lvols 40255 df-lines 40256 df-psubsp 40258 df-pmap 40259 df-padd 40551 df-lhyp 40743 df-laut 40744 df-ldil 40859 df-ltrn 40860 df-trl 40914 df-tgrp 41498 df-tendo 41510 df-edring 41512 df-dveca 41758 df-disoa 41784 df-dvech 41834 df-dib 41894 df-dic 41928 df-dih 41984 df-doch 42103 df-djh 42150

This theorem is referenced by: lcfl6lem 42253 lcfl7lem 42254 hvmapidN 42517 hdmapevec2 42591

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