Theorem dib1dim 36454

Description: Two expressions for the 1-dimensional subspaces of vector space H. (Contributed by NM, 24-Feb-2014.) (Revised by Mario Carneiro, 24-Jun-2014.)

Hypotheses

Ref	Expression
dib1dim.b	⊢ 𝐵 = (Base‘𝐾)
dib1dim.h	⊢ 𝐻 = (LHyp‘𝐾)
dib1dim.t	⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊)
dib1dim.r	⊢ 𝑅 = ((trL‘𝐾)‘𝑊)
dib1dim.e	⊢ 𝐸 = ((TEndo‘𝐾)‘𝑊)
dib1dim.o	⊢ 𝑂 = (ℎ ∈ 𝑇 ↦ ( I ↾ 𝐵))
dib1dim.i	⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊)

Assertion

Ref	Expression
dib1dim	⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝐼‘(𝑅‘𝐹)) = {𝑔 ∈ (𝑇 × 𝐸) ∣ ∃𝑠 ∈ 𝐸 𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩})

Distinct variable groups:   𝐵,ℎ   𝑔,𝑠,𝐸   𝑔,𝐹,𝑠   𝐻,𝑠   ℎ,𝑠,𝐾   𝑔,𝑂,𝑠   𝑅,𝑠   𝑔,ℎ,𝑇,𝑠   ℎ,𝑊,𝑠

Allowed substitution hints:   𝐵(𝑔,𝑠)   𝑅(𝑔,ℎ)   𝐸(ℎ)   𝐹(ℎ)   𝐻(𝑔,ℎ)   𝐼(𝑔,ℎ,𝑠)   𝐾(𝑔)   𝑂(ℎ)   𝑊(𝑔)

Proof of Theorem dib1dim

Dummy variables 𝑓 𝑡 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl 473	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
2		dib1dim.b	. . . . 5 ⊢ 𝐵 = (Base‘𝐾)
3		dib1dim.h	. . . . 5 ⊢ 𝐻 = (LHyp‘𝐾)
4		dib1dim.t	. . . . 5 ⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊)
5		dib1dim.r	. . . . 5 ⊢ 𝑅 = ((trL‘𝐾)‘𝑊)
6	2, 3, 4, 5	trlcl 35451	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝑅‘𝐹) ∈ 𝐵)
7		eqid 2622	. . . . 5 ⊢ (le‘𝐾) = (le‘𝐾)
8	7, 3, 4, 5	trlle 35471	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝑅‘𝐹)(le‘𝐾)𝑊)
9		dib1dim.o	. . . . 5 ⊢ 𝑂 = (ℎ ∈ 𝑇 ↦ ( I ↾ 𝐵))
10		eqid 2622	. . . . 5 ⊢ ((DIsoA‘𝐾)‘𝑊) = ((DIsoA‘𝐾)‘𝑊)
11		dib1dim.i	. . . . 5 ⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊)
12	2, 7, 3, 4, 9, 10, 11	dibval2 36433	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑅‘𝐹) ∈ 𝐵 ∧ (𝑅‘𝐹)(le‘𝐾)𝑊)) → (𝐼‘(𝑅‘𝐹)) = ((((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) × {𝑂}))
13	1, 6, 8, 12	syl12anc 1324	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝐼‘(𝑅‘𝐹)) = ((((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) × {𝑂}))
14		relxp 5227	. . . 4 ⊢ Rel ((((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) × {𝑂})
15		opelxp 5146	. . . . 5 ⊢ (⟨𝑓, 𝑡⟩ ∈ ((((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) × {𝑂}) ↔ (𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) ∧ 𝑡 ∈ {𝑂}))
16		dib1dim.e	. . . . . . . . 9 ⊢ 𝐸 = ((TEndo‘𝐾)‘𝑊)
17	3, 4, 5, 16, 10	dia1dim 36350	. . . . . . . 8 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) = {𝑓 ∣ ∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹)})
18	17	abeq2d 2734	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) ↔ ∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹)))
19	18	anbi1d 741	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → ((𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) ∧ 𝑡 ∈ {𝑂}) ↔ (∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 ∈ {𝑂})))
20	3, 4, 16	tendocl 36055	. . . . . . . . . . . . 13 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑠 ∈ 𝐸 ∧ 𝐹 ∈ 𝑇) → (𝑠‘𝐹) ∈ 𝑇)
21	20	3expa 1265	. . . . . . . . . . . 12 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑠 ∈ 𝐸) ∧ 𝐹 ∈ 𝑇) → (𝑠‘𝐹) ∈ 𝑇)
22	21	an32s 846	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ 𝑠 ∈ 𝐸) → (𝑠‘𝐹) ∈ 𝑇)
23	2, 3, 4, 16, 9	tendo0cl 36078	. . . . . . . . . . . 12 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝑂 ∈ 𝐸)
24	23	ad2antrr 762	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ 𝑠 ∈ 𝐸) → 𝑂 ∈ 𝐸)
25	22, 24	jca 554	. . . . . . . . . 10 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ 𝑠 ∈ 𝐸) → ((𝑠‘𝐹) ∈ 𝑇 ∧ 𝑂 ∈ 𝐸))
26		eleq1 2689	. . . . . . . . . . 11 ⊢ (𝑓 = (𝑠‘𝐹) → (𝑓 ∈ 𝑇 ↔ (𝑠‘𝐹) ∈ 𝑇))
27		eleq1 2689	. . . . . . . . . . 11 ⊢ (𝑡 = 𝑂 → (𝑡 ∈ 𝐸 ↔ 𝑂 ∈ 𝐸))
28	26, 27	bi2anan9 917	. . . . . . . . . 10 ⊢ ((𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) → ((𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸) ↔ ((𝑠‘𝐹) ∈ 𝑇 ∧ 𝑂 ∈ 𝐸)))
29	25, 28	syl5ibrcom 237	. . . . . . . . 9 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ 𝑠 ∈ 𝐸) → ((𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) → (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸)))
30	29	rexlimdva 3031	. . . . . . . 8 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) → (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸)))
31	30	pm4.71rd 667	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) ↔ ((𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸) ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))))
32		velsn 4193	. . . . . . . . 9 ⊢ (𝑡 ∈ {𝑂} ↔ 𝑡 = 𝑂)
33	32	anbi2i 730	. . . . . . . 8 ⊢ ((∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 ∈ {𝑂}) ↔ (∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))
34		r19.41v 3089	. . . . . . . 8 ⊢ (∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) ↔ (∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))
35	33, 34	bitr4i 267	. . . . . . 7 ⊢ ((∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 ∈ {𝑂}) ↔ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))
36		df-3an 1039	. . . . . . 7 ⊢ ((𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸 ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂)) ↔ ((𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸) ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂)))
37	31, 35, 36	3bitr4g 303	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → ((∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 ∈ {𝑂}) ↔ (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸 ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))))
38	19, 37	bitrd 268	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → ((𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) ∧ 𝑡 ∈ {𝑂}) ↔ (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸 ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))))
39	15, 38	syl5bb 272	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (⟨𝑓, 𝑡⟩ ∈ ((((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) × {𝑂}) ↔ (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸 ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))))
40	14, 39	opabbi2dv 5271	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → ((((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) × {𝑂}) = {⟨𝑓, 𝑡⟩ ∣ (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸 ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))})
41	13, 40	eqtrd 2656	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝐼‘(𝑅‘𝐹)) = {⟨𝑓, 𝑡⟩ ∣ (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸 ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))})
42		eqeq1 2626	. . . . 5 ⊢ (𝑔 = ⟨𝑓, 𝑡⟩ → (𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩ ↔ ⟨𝑓, 𝑡⟩ = ⟨(𝑠‘𝐹), 𝑂⟩))
43		vex 3203	. . . . . 6 ⊢ 𝑓 ∈ V
44		vex 3203	. . . . . 6 ⊢ 𝑡 ∈ V
45	43, 44	opth 4945	. . . . 5 ⊢ (⟨𝑓, 𝑡⟩ = ⟨(𝑠‘𝐹), 𝑂⟩ ↔ (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))
46	42, 45	syl6bb 276	. . . 4 ⊢ (𝑔 = ⟨𝑓, 𝑡⟩ → (𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩ ↔ (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂)))
47	46	rexbidv 3052	. . 3 ⊢ (𝑔 = ⟨𝑓, 𝑡⟩ → (∃𝑠 ∈ 𝐸 𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩ ↔ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂)))
48	47	rabxp 5154	. 2 ⊢ {𝑔 ∈ (𝑇 × 𝐸) ∣ ∃𝑠 ∈ 𝐸 𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩} = {⟨𝑓, 𝑡⟩ ∣ (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸 ∧ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))}
49	41, 48	syl6eqr 2674	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝐼‘(𝑅‘𝐹)) = {𝑔 ∈ (𝑇 × 𝐸) ∣ ∃𝑠 ∈ 𝐸 𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩})

Syntax hints:   → wi 4   ∧ wa 384   ∧ w3a 1037   = wceq 1483   ∈ wcel 1990  ∃wrex 2913  {crab 2916  {csn 4177  ⟨cop 4183   class class class wbr 4653  {copab 4712   ↦ cmpt 4729   I cid 5023   × cxp 5112   ↾ cres 5116  ‘cfv 5888  Basecbs 15857  lecple 15948  HLchlt 34637  LHypclh 35270  LTrncltrn 35387  trLctrl 35445  TEndoctendo 36040  DIsoAcdia 36317  DIsoBcdib 36427

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-riotaBAD 34239

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-fal 1489  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-iin 4523  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-1st 7168  df-2nd 7169  df-undef 7399  df-map 7859  df-preset 16928  df-poset 16946  df-plt 16958  df-lub 16974  df-glb 16975  df-join 16976  df-meet 16977  df-p0 17039  df-p1 17040  df-lat 17046  df-clat 17108  df-oposet 34463  df-ol 34465  df-oml 34466  df-covers 34553  df-ats 34554  df-atl 34585  df-cvlat 34609  df-hlat 34638  df-llines 34784  df-lplanes 34785  df-lvols 34786  df-lines 34787  df-psubsp 34789  df-pmap 34790  df-padd 35082  df-lhyp 35274  df-laut 35275  df-ldil 35390  df-ltrn 35391  df-trl 35446  df-tendo 36043  df-disoa 36318  df-dib 36428

This theorem is referenced by:  dib1dim2  36457