mapdpglem23 - Mathbox for Norm Megill

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Theorem mapdpglem23 42731

Description: Lemma for mapdpg 42743. Baer p. 45, line 10: "and so y' meets all our requirements." Our ℎ is Baer's y'. (Contributed by NM, 20-Mar-2015.)

**Hypotheses**
Ref	Expression
mapdpglem.h	⊢ 𝐻 = (LHyp‘𝐾)
mapdpglem.m	⊢ 𝑀 = ((mapd‘𝐾)‘𝑊)
mapdpglem.u	⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
mapdpglem.v	⊢ 𝑉 = (Base‘𝑈)
mapdpglem.s	⊢ − = (-_g‘𝑈)
mapdpglem.n	⊢ 𝑁 = (LSpan‘𝑈)
mapdpglem.c	⊢ 𝐶 = ((LCDual‘𝐾)‘𝑊)
mapdpglem.k	⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
mapdpglem.x	⊢ (𝜑 → 𝑋 ∈ 𝑉)
mapdpglem.y	⊢ (𝜑 → 𝑌 ∈ 𝑉)
mapdpglem1.p	⊢ ⊕ = (LSSum‘𝐶)
mapdpglem2.j	⊢ 𝐽 = (LSpan‘𝐶)
mapdpglem3.f	⊢ 𝐹 = (Base‘𝐶)
mapdpglem3.te	⊢ (𝜑 → 𝑡 ∈ ((𝑀‘(𝑁‘{𝑋})) ⊕ (𝑀‘(𝑁‘{𝑌}))))
mapdpglem3.a	⊢ 𝐴 = (Scalar‘𝑈)
mapdpglem3.b	⊢ 𝐵 = (Base‘𝐴)
mapdpglem3.t	⊢ · = ( ·_𝑠 ‘𝐶)
mapdpglem3.r	⊢ 𝑅 = (-_g‘𝐶)
mapdpglem3.g	⊢ (𝜑 → 𝐺 ∈ 𝐹)
mapdpglem3.e	⊢ (𝜑 → (𝑀‘(𝑁‘{𝑋})) = (𝐽‘{𝐺}))
mapdpglem4.q	⊢ 𝑄 = (0_g‘𝑈)
mapdpglem.ne	⊢ (𝜑 → (𝑁‘{𝑋}) ≠ (𝑁‘{𝑌}))
mapdpglem4.jt	⊢ (𝜑 → (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{𝑡}))
mapdpglem4.z	⊢ 0 = (0_g‘𝐴)
mapdpglem4.g4	⊢ (𝜑 → 𝑔 ∈ 𝐵)
mapdpglem4.z4	⊢ (𝜑 → 𝑧 ∈ (𝑀‘(𝑁‘{𝑌})))
mapdpglem4.t4	⊢ (𝜑 → 𝑡 = ((𝑔 · 𝐺)𝑅𝑧))
mapdpglem4.xn	⊢ (𝜑 → 𝑋 ≠ 𝑄)
mapdpglem12.yn	⊢ (𝜑 → 𝑌 ≠ 𝑄)
mapdpglem17.ep	⊢ 𝐸 = (((inv_r‘𝐴)‘𝑔) · 𝑧)

**Assertion**
Ref	Expression
mapdpglem23	⊢ (𝜑 → ∃ℎ ∈ 𝐹 ((𝑀‘(𝑁‘{𝑌})) = (𝐽‘{ℎ}) ∧ (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅ℎ)})))

Distinct variable groups: 𝑡, − 𝑡,𝐶 𝑡,𝐽 𝑡,𝑀 𝑡,𝑁 𝑡,𝑋 𝑡,𝑌 𝐵,𝑔 𝑧,𝑔,𝐶 𝑔,𝐹 𝑔,𝐺,𝑧 𝑔,𝐽,𝑧 𝑔,𝑀,𝑧 𝑔,𝑁,𝑧 𝑅,𝑔,𝑧 · ,𝑔,𝑧 𝑔,𝑌,𝑧,𝑡 ℎ,𝐸 ℎ,𝐹 ℎ,𝐺 ℎ,𝐽 ℎ,𝑀 ℎ,𝑁 𝑅,ℎ − ,ℎ ℎ,𝑋 ℎ,𝑌 Allowed substitution hints: 𝜑(𝑧, 𝑡, 𝑔, ℎ) 𝐴(𝑧, 𝑡, 𝑔, ℎ) 𝐵(𝑧, 𝑡, ℎ) 𝐶(ℎ) ⊕ (𝑧, 𝑡, 𝑔, ℎ) 𝑄(𝑧, 𝑡, 𝑔, ℎ) 𝑅(𝑡) · (𝑡, ℎ) 𝑈(𝑧, 𝑡, 𝑔, ℎ) 𝐸(𝑧, 𝑡, 𝑔) 𝐹(𝑧, 𝑡) 𝐺(𝑡) 𝐻(𝑧, 𝑡, 𝑔, ℎ) 𝐾(𝑧, 𝑡, 𝑔, ℎ) − (𝑧, 𝑔) 𝑉(𝑧, 𝑡, 𝑔, ℎ) 𝑊(𝑧, 𝑡, 𝑔, ℎ) 𝑋(𝑧, 𝑔) 0 (𝑧, 𝑡, 𝑔, ℎ)

**Proof of Theorem mapdpglem23**
Step	Hyp	Ref	Expression
1		mapdpglem.h	. . . 4 ⊢ 𝐻 = (LHyp‘𝐾)
2		mapdpglem.m	. . . 4 ⊢ 𝑀 = ((mapd‘𝐾)‘𝑊)
3		mapdpglem.u	. . . 4 ⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
4		eqid 2761	. . . 4 ⊢ (LSubSp‘𝑈) = (LSubSp‘𝑈)
5		mapdpglem.c	. . . 4 ⊢ 𝐶 = ((LCDual‘𝐾)‘𝑊)
6		eqid 2761	. . . 4 ⊢ (LSubSp‘𝐶) = (LSubSp‘𝐶)
7		mapdpglem.k	. . . 4 ⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
8	1, 3, 7	dvhlmod 42147	. . . . 5 ⊢ (𝜑 → 𝑈 ∈ LMod)
9		mapdpglem.y	. . . . 5 ⊢ (𝜑 → 𝑌 ∈ 𝑉)
10		mapdpglem.v	. . . . . 6 ⊢ 𝑉 = (Base‘𝑈)
11		mapdpglem.n	. . . . . 6 ⊢ 𝑁 = (LSpan‘𝑈)
12	10, 4, 11	lspsncl 21245	. . . . 5 ⊢ ((𝑈 ∈ LMod ∧ 𝑌 ∈ 𝑉) → (𝑁‘{𝑌}) ∈ (LSubSp‘𝑈))
13	8, 9, 12	syl2anc 596	. . . 4 ⊢ (𝜑 → (𝑁‘{𝑌}) ∈ (LSubSp‘𝑈))
14	1, 2, 3, 4, 5, 6, 7, 13	mapdcl2 42693	. . 3 ⊢ (𝜑 → (𝑀‘(𝑁‘{𝑌})) ∈ (LSubSp‘𝐶))
15		mapdpglem.s	. . . 4 ⊢ − = (-_g‘𝑈)
16		mapdpglem.x	. . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝑉)
17		mapdpglem1.p	. . . 4 ⊢ ⊕ = (LSSum‘𝐶)
18		mapdpglem2.j	. . . 4 ⊢ 𝐽 = (LSpan‘𝐶)
19		mapdpglem3.f	. . . 4 ⊢ 𝐹 = (Base‘𝐶)
20		mapdpglem3.te	. . . 4 ⊢ (𝜑 → 𝑡 ∈ ((𝑀‘(𝑁‘{𝑋})) ⊕ (𝑀‘(𝑁‘{𝑌}))))
21		mapdpglem3.a	. . . 4 ⊢ 𝐴 = (Scalar‘𝑈)
22		mapdpglem3.b	. . . 4 ⊢ 𝐵 = (Base‘𝐴)
23		mapdpglem3.t	. . . 4 ⊢ · = ( ·_𝑠 ‘𝐶)
24		mapdpglem3.r	. . . 4 ⊢ 𝑅 = (-_g‘𝐶)
25		mapdpglem3.g	. . . 4 ⊢ (𝜑 → 𝐺 ∈ 𝐹)
26		mapdpglem3.e	. . . 4 ⊢ (𝜑 → (𝑀‘(𝑁‘{𝑋})) = (𝐽‘{𝐺}))
27		mapdpglem4.q	. . . 4 ⊢ 𝑄 = (0_g‘𝑈)
28		mapdpglem.ne	. . . 4 ⊢ (𝜑 → (𝑁‘{𝑋}) ≠ (𝑁‘{𝑌}))
29		mapdpglem4.jt	. . . 4 ⊢ (𝜑 → (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{𝑡}))
30		mapdpglem4.z	. . . 4 ⊢ 0 = (0_g‘𝐴)
31		mapdpglem4.g4	. . . 4 ⊢ (𝜑 → 𝑔 ∈ 𝐵)
32		mapdpglem4.z4	. . . 4 ⊢ (𝜑 → 𝑧 ∈ (𝑀‘(𝑁‘{𝑌})))
33		mapdpglem4.t4	. . . 4 ⊢ (𝜑 → 𝑡 = ((𝑔 · 𝐺)𝑅𝑧))
34		mapdpglem4.xn	. . . 4 ⊢ (𝜑 → 𝑋 ≠ 𝑄)
35		mapdpglem12.yn	. . . 4 ⊢ (𝜑 → 𝑌 ≠ 𝑄)
36		mapdpglem17.ep	. . . 4 ⊢ 𝐸 = (((inv_r‘𝐴)‘𝑔) · 𝑧)
37	1, 2, 3, 10, 15, 11, 5, 7, 16, 9, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36	mapdpglem19 42727	. . 3 ⊢ (𝜑 → 𝐸 ∈ (𝑀‘(𝑁‘{𝑌})))
38	19, 6	lssel 21205	. . 3 ⊢ (((𝑀‘(𝑁‘{𝑌})) ∈ (LSubSp‘𝐶) ∧ 𝐸 ∈ (𝑀‘(𝑁‘{𝑌}))) → 𝐸 ∈ 𝐹)
39	14, 37, 38	syl2anc 596	. 2 ⊢ (𝜑 → 𝐸 ∈ 𝐹)
40	1, 2, 3, 10, 15, 11, 5, 7, 16, 9, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36	mapdpglem20 42728	. 2 ⊢ (𝜑 → (𝑀‘(𝑁‘{𝑌})) = (𝐽‘{𝐸}))
41	1, 2, 3, 10, 15, 11, 5, 7, 16, 9, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36	mapdpglem22 42730	. 2 ⊢ (𝜑 → (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅𝐸)}))
42		sneq 4594	. . . . . 6 ⊢ (ℎ = 𝐸 → {ℎ} = {𝐸})
43	42	fveq2d 6887	. . . . 5 ⊢ (ℎ = 𝐸 → (𝐽‘{ℎ}) = (𝐽‘{𝐸}))
44	43	eqeq2d 2772	. . . 4 ⊢ (ℎ = 𝐸 → ((𝑀‘(𝑁‘{𝑌})) = (𝐽‘{ℎ}) ↔ (𝑀‘(𝑁‘{𝑌})) = (𝐽‘{𝐸})))
45		oveq2 7426	. . . . . . 7 ⊢ (ℎ = 𝐸 → (𝐺𝑅ℎ) = (𝐺𝑅𝐸))
46	45	sneqd 4596	. . . . . 6 ⊢ (ℎ = 𝐸 → {(𝐺𝑅ℎ)} = {(𝐺𝑅𝐸)})
47	46	fveq2d 6887	. . . . 5 ⊢ (ℎ = 𝐸 → (𝐽‘{(𝐺𝑅ℎ)}) = (𝐽‘{(𝐺𝑅𝐸)}))
48	47	eqeq2d 2772	. . . 4 ⊢ (ℎ = 𝐸 → ((𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅ℎ)}) ↔ (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅𝐸)})))
49	44, 48	anbi12d 644	. . 3 ⊢ (ℎ = 𝐸 → (((𝑀‘(𝑁‘{𝑌})) = (𝐽‘{ℎ}) ∧ (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅ℎ)})) ↔ ((𝑀‘(𝑁‘{𝑌})) = (𝐽‘{𝐸}) ∧ (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅𝐸)}))))
50	49	rspcev 3577	. 2 ⊢ ((𝐸 ∈ 𝐹 ∧ ((𝑀‘(𝑁‘{𝑌})) = (𝐽‘{𝐸}) ∧ (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅𝐸)}))) → ∃ℎ ∈ 𝐹 ((𝑀‘(𝑁‘{𝑌})) = (𝐽‘{ℎ}) ∧ (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅ℎ)})))
51	39, 40, 41, 50	syl12anc 850	1 ⊢ (𝜑 → ∃ℎ ∈ 𝐹 ((𝑀‘(𝑁‘{𝑌})) = (𝐽‘{ℎ}) ∧ (𝑀‘(𝑁‘{(𝑋 − 𝑌)})) = (𝐽‘{(𝐺𝑅ℎ)})))

Colors of variables: wff setvar class

This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ≠ wne 2956 ∃wrex 3087 {csn 4584 ‘cfv 6537 (class class class)co 7418 Basecbs 17380 Scalarcsca 17424 ·_𝑠 cvsca 17425 0_gc0g 17603 -_gcsg 19139 LSSumclsm 19841 inv_rcinvr 20610 LModclmod 21128 LSubSpclss 21199 LSpanclspn 21239 HLchlt 40387 LHypclh 41021 DVecHcdvh 42115 LCDualclcd 42623 mapdcmpd 42661

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 7749 ax-cnex 11249 ax-resscn 11250 ax-1cn 11251 ax-icn 11252 ax-addcl 11253 ax-addrcl 11254 ax-mulcl 11255 ax-mulrcl 11256 ax-mulcom 11257 ax-addass 11258 ax-mulass 11259 ax-distr 11260 ax-i2m1 11261 ax-1ne0 11262 ax-1rid 11263 ax-rnegex 11264 ax-rrecex 11265 ax-cnre 11266 ax-pre-lttri 11267 ax-pre-lttrn 11268 ax-pre-ltadd 11269 ax-pre-mulgt0 11270 ax-riotaBAD 39990

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-tp 4589 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-iin 4954 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 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7375 df-ov 7421 df-oprab 7422 df-mpo 7423 df-of 7691 df-om 7876 df-1st 7999 df-2nd 8000 df-tpos 8236 df-undef 8283 df-frecs 8292 df-wrecs 8323 df-recs 8372 df-rdg 8411 df-1o 8469 df-2o 8470 df-er 8710 df-map 8842 df-en 8967 df-dom 8968 df-sdom 8969 df-fin 8970 df-pnf 11338 df-mnf 11339 df-xr 11340 df-ltxr 11341 df-le 11342 df-sub 11536 df-neg 11537 df-nn 12329 df-2 12398 df-3 12399 df-4 12400 df-5 12401 df-6 12402 df-n0 12600 df-z 12687 df-uz 12959 df-fz 13633 df-struct 17318 df-sets 17335 df-slot 17353 df-ndx 17365 df-base 17381 df-ress 17402 df-plusg 17434 df-mulr 17435 df-sca 17437 df-vsca 17438 df-0g 17605 df-mre 17749 df-mrc 17750 df-acs 17752 df-proset 18461 df-poset 18480 df-plt 18495 df-lub 18511 df-glb 18512 df-join 18513 df-meet 18514 df-p0 18590 df-p1 18591 df-lat 18599 df-clat 18666 df-mgm 18809 df-sgrp 18901 df-mnd 18917 df-submnd 18972 df-grp 19140 df-minusg 19141 df-sbg 19142 df-subg 19326 df-cntz 19524 df-oppg 19553 df-lsm 19843 df-cmn 19989 df-abl 19990 df-mgp 20354 df-rng 20368 df-ur 20401 df-ring 20454 df-oppr 20560 df-dvdsr 20580 df-unit 20581 df-invr 20611 df-dvr 20624 df-nzr 20756 df-rlreg 20939 df-domn 20940 df-drng 20975 df-lmod 21130 df-lss 21200 df-lsp 21240 df-lvec 21371 df-lsatoms 40013 df-lshyp 40014 df-lcv 40056 df-lfl 40095 df-lkr 40123 df-ldual 40161 df-oposet 40213 df-ol 40215 df-oml 40216 df-covers 40303 df-ats 40304 df-atl 40335 df-cvlat 40359 df-hlat 40388 df-llines 40535 df-lplanes 40536 df-lvols 40537 df-lines 40538 df-psubsp 40540 df-pmap 40541 df-padd 40833 df-lhyp 41025 df-laut 41026 df-ldil 41141 df-ltrn 41142 df-trl 41196 df-tgrp 41780 df-tendo 41792 df-edring 41794 df-dveca 42040 df-disoa 42066 df-dvech 42116 df-dib 42176 df-dic 42210 df-dih 42266 df-doch 42385 df-djh 42432 df-lcdual 42624 df-mapd 42662

This theorem is used by: mapdpglem24 42741

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