Theorem dib1dim 35472

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 472	. . . 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 34469	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝑅‘𝐹) ∈ 𝐵)
7		eqid 2610	. . . . 5 ⊢ (le‘𝐾) = (le‘𝐾)
8	7, 3, 4, 5	trlle 34489	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝑅‘𝐹)(le‘𝐾)𝑊)
9		dib1dim.o	. . . . 5 ⊢ 𝑂 = (ℎ ∈ 𝑇 ↦ ( I ↾ 𝐵))
10		eqid 2610	. . . . 5 ⊢ ((DIsoA‘𝐾)‘𝑊) = ((DIsoA‘𝐾)‘𝑊)
11		dib1dim.i	. . . . 5 ⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊)
12	2, 7, 3, 4, 9, 10, 11	dibval2 35451	. . . 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 1316	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝐼‘(𝑅‘𝐹)) = ((((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) × {𝑂}))
14		relxp 5150	. . . 4 ⊢ Rel ((((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) × {𝑂})
15		opelxp 5070	. . . . 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 35368	. . . . . . . 8 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) = {𝑓 ∣ ∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹)})
18	17	abeq2d 2721	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅‘𝐹)) ↔ ∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹)))
19	18	anbi1d 737	. . . . . 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 35073	. . . . . . . . . . . . 13 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑠 ∈ 𝐸 ∧ 𝐹 ∈ 𝑇) → (𝑠‘𝐹) ∈ 𝑇)
21	20	3expa 1257	. . . . . . . . . . . 12 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑠 ∈ 𝐸) ∧ 𝐹 ∈ 𝑇) → (𝑠‘𝐹) ∈ 𝑇)
22	21	an32s 842	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ 𝑠 ∈ 𝐸) → (𝑠‘𝐹) ∈ 𝑇)
23	2, 3, 4, 16, 9	tendo0cl 35096	. . . . . . . . . . . 12 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → 𝑂 ∈ 𝐸)
24	23	ad2antrr 758	. . . . . . . . . . 11 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ 𝑠 ∈ 𝐸) → 𝑂 ∈ 𝐸)
25	22, 24	jca 553	. . . . . . . . . 10 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ 𝑠 ∈ 𝐸) → ((𝑠‘𝐹) ∈ 𝑇 ∧ 𝑂 ∈ 𝐸))
26		eleq1 2676	. . . . . . . . . . 11 ⊢ (𝑓 = (𝑠‘𝐹) → (𝑓 ∈ 𝑇 ↔ (𝑠‘𝐹) ∈ 𝑇))
27		eleq1 2676	. . . . . . . . . . 11 ⊢ (𝑡 = 𝑂 → (𝑡 ∈ 𝐸 ↔ 𝑂 ∈ 𝐸))
28	26, 27	bi2anan9 913	. . . . . . . . . 10 ⊢ ((𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) → ((𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸) ↔ ((𝑠‘𝐹) ∈ 𝑇 ∧ 𝑂 ∈ 𝐸)))
29	25, 28	syl5ibrcom 236	. . . . . . . . 9 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ 𝑠 ∈ 𝐸) → ((𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) → (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸)))
30	29	rexlimdva 3013	. . . . . . . 8 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) → (𝑓 ∈ 𝑇 ∧ 𝑡 ∈ 𝐸)))
31	30	pm4.71rd 665	. . . . . . 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 4141	. . . . . . . . 9 ⊢ (𝑡 ∈ {𝑂} ↔ 𝑡 = 𝑂)
33	32	anbi2i 726	. . . . . . . 8 ⊢ ((∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 ∈ {𝑂}) ↔ (∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))
34		r19.41v 3070	. . . . . . . 8 ⊢ (∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂) ↔ (∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))
35	33, 34	bitr4i 266	. . . . . . 7 ⊢ ((∃𝑠 ∈ 𝐸 𝑓 = (𝑠‘𝐹) ∧ 𝑡 ∈ {𝑂}) ↔ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))
36		df-3an 1033	. . . . . . 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 302	. . . . . 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 267	. . . . 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 271	. . . 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 5193	. . 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 2644	. 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 2614	. . . . 5 ⊢ (𝑔 = ⟨𝑓, 𝑡⟩ → (𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩ ↔ ⟨𝑓, 𝑡⟩ = ⟨(𝑠‘𝐹), 𝑂⟩))
43		vex 3176	. . . . . 6 ⊢ 𝑓 ∈ V
44		vex 3176	. . . . . 6 ⊢ 𝑡 ∈ V
45	43, 44	opth 4871	. . . . 5 ⊢ (⟨𝑓, 𝑡⟩ = ⟨(𝑠‘𝐹), 𝑂⟩ ↔ (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂))
46	42, 45	syl6bb 275	. . . 4 ⊢ (𝑔 = ⟨𝑓, 𝑡⟩ → (𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩ ↔ (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂)))
47	46	rexbidv 3034	. . 3 ⊢ (𝑔 = ⟨𝑓, 𝑡⟩ → (∃𝑠 ∈ 𝐸 𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩ ↔ ∃𝑠 ∈ 𝐸 (𝑓 = (𝑠‘𝐹) ∧ 𝑡 = 𝑂)))
48	47	rabxp 5078	. 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 2662	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝐼‘(𝑅‘𝐹)) = {𝑔 ∈ (𝑇 × 𝐸) ∣ ∃𝑠 ∈ 𝐸 𝑔 = ⟨(𝑠‘𝐹), 𝑂⟩})

Syntax hints:   → wi 4   ∧ wa 383   ∧ w3a 1031   = wceq 1475   ∈ wcel 1977  ∃wrex 2897  {crab 2900  {csn 4125  ⟨cop 4131   class class class wbr 4583  {copab 4642   ↦ cmpt 4643   I cid 4948   × cxp 5036   ↾ cres 5040  ‘cfv 5804  Basecbs 15695  lecple 15775  HLchlt 33655  LHypclh 34288  LTrncltrn 34405  trLctrl 34463  TEndoctendo 35058  DIsoAcdia 35335  DIsoBcdib 35445

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-riotaBAD 33257

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-fal 1481  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4373  df-iun 4457  df-iin 4458  df-br 4584  df-opab 4644  df-mpt 4645  df-id 4953  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-1st 7059  df-2nd 7060  df-undef 7286  df-map 7746  df-preset 16751  df-poset 16769  df-plt 16781  df-lub 16797  df-glb 16798  df-join 16799  df-meet 16800  df-p0 16862  df-p1 16863  df-lat 16869  df-clat 16931  df-oposet 33481  df-ol 33483  df-oml 33484  df-covers 33571  df-ats 33572  df-atl 33603  df-cvlat 33627  df-hlat 33656  df-llines 33802  df-lplanes 33803  df-lvols 33804  df-lines 33805  df-psubsp 33807  df-pmap 33808  df-padd 34100  df-lhyp 34292  df-laut 34293  df-ldil 34408  df-ltrn 34409  df-trl 34464  df-tendo 35061  df-disoa 35336  df-dib 35446

This theorem is referenced by:  dib1dim2  35475