dochfl1 - Mathbox for Norm Megill

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Theorem dochfl1 42060

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 3914	. . 3 ⊢ (𝜑 → 𝑋 ∈ 𝑉)
3		eqeq1 2765	. . . . . 6 ⊢ (𝑣 = 𝑋 → (𝑣 = (𝑤 + (𝑘 · 𝑋)) ↔ 𝑋 = (𝑤 + (𝑘 · 𝑋))))
4	3	rexbidv 3185	. . . . 5 ⊢ (𝑣 = 𝑋 → (∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑣 = (𝑤 + (𝑘 · 𝑋)) ↔ ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))))
5	4	riotabidv 7349	. . . 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 7351	. . . 4 ⊢ (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))) ∈ V
8	5, 6, 7	fvmpt 6969	. . 3 ⊢ (𝑋 ∈ 𝑉 → (𝐺‘𝑋) = (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))))
9	2, 8	syl 17	. 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 41694	. . . . 5 ⊢ (𝜑 → 𝑈 ∈ LMod)
14	2	snssd 4742	. . . . . 6 ⊢ (𝜑 → {𝑋} ⊆ 𝑉)
15		dochfl1.v	. . . . . . 7 ⊢ 𝑉 = (Base‘𝑈)
16		eqid 2761	. . . . . . 7 ⊢ (LSubSp‘𝑈) = (LSubSp‘𝑈)
17		dochfl1.o	. . . . . . 7 ⊢ ⊥ = ((ocH‘𝐾)‘𝑊)
18	10, 11, 15, 16, 17	dochlss 41938	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ {𝑋} ⊆ 𝑉) → ( ⊥ ‘{𝑋}) ∈ (LSubSp‘𝑈))
19	12, 14, 18	syl2anc 593	. . . . 5 ⊢ (𝜑 → ( ⊥ ‘{𝑋}) ∈ (LSubSp‘𝑈))
20		dochfl1.z	. . . . . 6 ⊢ 0 = (0_g‘𝑈)
21	20, 16	lss0cl 21001	. . . . 5 ⊢ ((𝑈 ∈ LMod ∧ ( ⊥ ‘{𝑋}) ∈ (LSubSp‘𝑈)) → 0 ∈ ( ⊥ ‘{𝑋}))
22	13, 19, 21	syl2anc 593	. . . 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 20944	. . . . . . 7 ⊢ ((𝑈 ∈ LMod ∧ 𝑋 ∈ 𝑉) → ( 1 · 𝑋) = 𝑋)
27	13, 2, 26	syl2anc 593	. . . . . 6 ⊢ (𝜑 → ( 1 · 𝑋) = 𝑋)
28	27	oveq2d 7406	. . . . 5 ⊢ (𝜑 → ( 0 + ( 1 · 𝑋)) = ( 0 + 𝑋))
29		dochfl1.a	. . . . . . 7 ⊢ + = (+_g‘𝑈)
30	15, 29, 20	lmod0vlid 20946	. . . . . 6 ⊢ ((𝑈 ∈ LMod ∧ 𝑋 ∈ 𝑉) → ( 0 + 𝑋) = 𝑋)
31	13, 2, 30	syl2anc 593	. . . . 5 ⊢ (𝜑 → ( 0 + 𝑋) = 𝑋)
32	28, 31	eqtr2d 2797	. . . 4 ⊢ (𝜑 → 𝑋 = ( 0 + ( 1 · 𝑋)))
33		oveq1 7397	. . . . 5 ⊢ (𝑤 = 0 → (𝑤 + ( 1 · 𝑋)) = ( 0 + ( 1 · 𝑋)))
34	33	rspceeqv 3603	. . . 4 ⊢ (( 0 ∈ ( ⊥ ‘{𝑋}) ∧ 𝑋 = ( 0 + ( 1 · 𝑋))) → ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋)))
35	22, 32, 34	syl2anc 593	. . 3 ⊢ (𝜑 → ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋)))
36	23	lmodring 20922	. . . . 5 ⊢ (𝑈 ∈ LMod → 𝐷 ∈ Ring)
37		dochfl1.r	. . . . . 6 ⊢ 𝑅 = (Base‘𝐷)
38	37, 25	ringidcl 20301	. . . . 5 ⊢ (𝐷 ∈ Ring → 1 ∈ 𝑅)
39	13, 36, 38	3syl 18	. . . 4 ⊢ (𝜑 → 1 ∈ 𝑅)
40		eqid 2761	. . . . 5 ⊢ (LSpan‘𝑈) = (LSpan‘𝑈)
41		eqid 2761	. . . . 5 ⊢ (LSSum‘𝑈) = (LSSum‘𝑈)
42		eqid 2761	. . . . 5 ⊢ (LSHyp‘𝑈) = (LSHyp‘𝑈)
43	10, 11, 12	dvhlvec 41693	. . . . 5 ⊢ (𝜑 → 𝑈 ∈ LVec)
44	10, 17, 11, 15, 20, 42, 12, 1	dochsnshp 42037	. . . . 5 ⊢ (𝜑 → ( ⊥ ‘{𝑋}) ∈ (LSHyp‘𝑈))
45	10, 17, 11, 15, 20, 40, 41, 12, 1	dochexmidat 42043	. . . . 5 ⊢ (𝜑 → (( ⊥ ‘{𝑋})(LSSum‘𝑈)((LSpan‘𝑈)‘{𝑋})) = 𝑉)
46	15, 29, 40, 41, 42, 43, 44, 2, 2, 45, 23, 37, 24	lshpsmreu 39693	. . . 4 ⊢ (𝜑 → ∃!𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋)))
47		oveq1 7397	. . . . . . . 8 ⊢ (𝑘 = 1 → (𝑘 · 𝑋) = ( 1 · 𝑋))
48	47	oveq2d 7406	. . . . . . 7 ⊢ (𝑘 = 1 → (𝑤 + (𝑘 · 𝑋)) = (𝑤 + ( 1 · 𝑋)))
49	48	eqeq2d 2772	. . . . . 6 ⊢ (𝑘 = 1 → (𝑋 = (𝑤 + (𝑘 · 𝑋)) ↔ 𝑋 = (𝑤 + ( 1 · 𝑋))))
50	49	rexbidv 3185	. . . . 5 ⊢ (𝑘 = 1 → (∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋)) ↔ ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋))))
51	50	riota2 7372	. . . 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 593	. . 3 ⊢ (𝜑 → (∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + ( 1 · 𝑋)) ↔ (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))) = 1 ))
53	35, 52	mpbid 234	. 2 ⊢ (𝜑 → (℩𝑘 ∈ 𝑅 ∃𝑤 ∈ ( ⊥ ‘{𝑋})𝑋 = (𝑤 + (𝑘 · 𝑋))) = 1 )
54	9, 53	eqtrd 2796	1 ⊢ (𝜑 → (𝐺‘𝑋) = 1 )

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 208 ∧ wa 399 = wceq 1559 ∈ wcel 2141 ∃wrex 3085 ∃!wreu 3364 ∖ cdif 3899 ⊆ wss 3902 {csn 4579 ↦ cmpt 5178 ‘cfv 6515 ℩crio 7346 (class class class)co 7390 Basecbs 17235 +_gcplusg 17276 Scalarcsca 17279 ·_𝑠 cvsca 17280 0_gc0g 17458 LSSumclsm 19664 1_rcur 20217 Ringcrg 20269 LModclmod 20914 LSubSpclss 20985 LSpanclspn 21025 LSHypclsh 39559 HLchlt 39934 LHypclh 40568 DVecHcdvh 41662 ocHcoch 41931

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5224 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7712 ax-cnex 11122 ax-resscn 11123 ax-1cn 11124 ax-icn 11125 ax-addcl 11126 ax-addrcl 11127 ax-mulcl 11128 ax-mulrcl 11129 ax-mulcom 11130 ax-addass 11131 ax-mulass 11132 ax-distr 11133 ax-i2m1 11134 ax-1ne0 11135 ax-1rid 11136 ax-rnegex 11137 ax-rrecex 11138 ax-cnre 11139 ax-pre-lttri 11140 ax-pre-lttrn 11141 ax-pre-ltadd 11142 ax-pre-mulgt0 11143 ax-riotaBAD 39537

This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-tp 4584 df-op 4586 df-uni 4863 df-int 4903 df-iun 4948 df-iin 4949 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6282 df-ord 6343 df-on 6344 df-lim 6345 df-suc 6346 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7841 df-1st 7964 df-2nd 7965 df-tpos 8199 df-undef 8246 df-frecs 8255 df-wrecs 8286 df-recs 8335 df-rdg 8374 df-1o 8430 df-er 8671 df-map 8803 df-en 8921 df-dom 8922 df-sdom 8923 df-fin 8924 df-pnf 11211 df-mnf 11212 df-xr 11213 df-ltxr 11214 df-le 11215 df-sub 11409 df-neg 11410 df-nn 12204 df-2 12273 df-3 12274 df-4 12275 df-5 12276 df-6 12277 df-n0 12475 df-z 12562 df-uz 12833 df-fz 13506 df-struct 17173 df-sets 17190 df-slot 17208 df-ndx 17220 df-base 17236 df-ress 17257 df-plusg 17289 df-mulr 17290 df-sca 17292 df-vsca 17293 df-0g 17460 df-proset 18316 df-poset 18335 df-plt 18350 df-lub 18366 df-glb 18367 df-join 18368 df-meet 18369 df-p0 18445 df-p1 18446 df-lat 18454 df-clat 18521 df-mgm 18664 df-sgrp 18743 df-mnd 18759 df-submnd 18808 df-grp 18968 df-minusg 18969 df-sbg 18970 df-subg 19155 df-cntz 19347 df-lsm 19666 df-cmn 19812 df-abl 19813 df-mgp 20177 df-rng 20189 df-ur 20218 df-ring 20271 df-oppr 20372 df-dvdsr 20392 df-unit 20393 df-invr 20423 df-dvr 20436 df-drng 20767 df-lmod 20916 df-lss 20986 df-lsp 21026 df-lvec 21157 df-lsatoms 39560 df-lshyp 39561 df-oposet 39760 df-ol 39762 df-oml 39763 df-covers 39850 df-ats 39851 df-atl 39882 df-cvlat 39906 df-hlat 39935 df-llines 40082 df-lplanes 40083 df-lvols 40084 df-lines 40085 df-psubsp 40087 df-pmap 40088 df-padd 40380 df-lhyp 40572 df-laut 40573 df-ldil 40688 df-ltrn 40689 df-trl 40743 df-tgrp 41327 df-tendo 41339 df-edring 41341 df-dveca 41587 df-disoa 41613 df-dvech 41663 df-dib 41723 df-dic 41757 df-dih 41813 df-doch 41932 df-djh 41979

This theorem is referenced by: lcfl6lem 42082 lcfl7lem 42083 hvmapidN 42346 hdmapevec2 42420

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