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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 = (𝑇 ↦ ( I ↾ 𝐵))
dib1dim.i 𝐼 = ((DIsoB‘𝐾)‘𝑊)
Assertion
Ref Expression
dib1dim (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (𝐼‘(𝑅𝐹)) = {𝑔 ∈ (𝑇 × 𝐸) ∣ ∃𝑠𝐸 𝑔 = ⟨(𝑠𝐹), 𝑂⟩})
Distinct variable groups:   𝐵,   𝑔,𝑠,𝐸   𝑔,𝐹,𝑠   𝐻,𝑠   ,𝑠,𝐾   𝑔,𝑂,𝑠   𝑅,𝑠   𝑔,,𝑇,𝑠   ,𝑊,𝑠
Allowed substitution hints:   𝐵(𝑔,𝑠)   𝑅(𝑔,)   𝐸()   𝐹()   𝐻(𝑔,)   𝐼(𝑔,,𝑠)   𝐾(𝑔)   𝑂()   𝑊(𝑔)

Proof of Theorem dib1dim
Dummy variables 𝑓 𝑡 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 simpl 472 . . . 4 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (𝐾 ∈ HL ∧ 𝑊𝐻))
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)
62, 3, 4, 5trlcl 34469 . . . 4 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (𝑅𝐹) ∈ 𝐵)
7 eqid 2610 . . . . 5 (le‘𝐾) = (le‘𝐾)
87, 3, 4, 5trlle 34489 . . . 4 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (𝑅𝐹)(le‘𝐾)𝑊)
9 dib1dim.o . . . . 5 𝑂 = (𝑇 ↦ ( I ↾ 𝐵))
10 eqid 2610 . . . . 5 ((DIsoA‘𝐾)‘𝑊) = ((DIsoA‘𝐾)‘𝑊)
11 dib1dim.i . . . . 5 𝐼 = ((DIsoB‘𝐾)‘𝑊)
122, 7, 3, 4, 9, 10, 11dibval2 35451 . . . 4 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑅𝐹) ∈ 𝐵 ∧ (𝑅𝐹)(le‘𝐾)𝑊)) → (𝐼‘(𝑅𝐹)) = ((((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) × {𝑂}))
131, 6, 8, 12syl12anc 1316 . . 3 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (𝐼‘(𝑅𝐹)) = ((((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) × {𝑂}))
14 relxp 5150 . . . 4 Rel ((((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) × {𝑂})
15 opelxp 5070 . . . . 5 (⟨𝑓, 𝑡⟩ ∈ ((((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) × {𝑂}) ↔ (𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) ∧ 𝑡 ∈ {𝑂}))
16 dib1dim.e . . . . . . . . 9 𝐸 = ((TEndo‘𝐾)‘𝑊)
173, 4, 5, 16, 10dia1dim 35368 . . . . . . . 8 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) = {𝑓 ∣ ∃𝑠𝐸 𝑓 = (𝑠𝐹)})
1817abeq2d 2721 . . . . . . 7 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) ↔ ∃𝑠𝐸 𝑓 = (𝑠𝐹)))
1918anbi1d 737 . . . . . 6 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → ((𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) ∧ 𝑡 ∈ {𝑂}) ↔ (∃𝑠𝐸 𝑓 = (𝑠𝐹) ∧ 𝑡 ∈ {𝑂})))
203, 4, 16tendocl 35073 . . . . . . . . . . . . 13 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑠𝐸𝐹𝑇) → (𝑠𝐹) ∈ 𝑇)
21203expa 1257 . . . . . . . . . . . 12 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑠𝐸) ∧ 𝐹𝑇) → (𝑠𝐹) ∈ 𝑇)
2221an32s 842 . . . . . . . . . . 11 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) ∧ 𝑠𝐸) → (𝑠𝐹) ∈ 𝑇)
232, 3, 4, 16, 9tendo0cl 35096 . . . . . . . . . . . 12 ((𝐾 ∈ HL ∧ 𝑊𝐻) → 𝑂𝐸)
2423ad2antrr 758 . . . . . . . . . . 11 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) ∧ 𝑠𝐸) → 𝑂𝐸)
2522, 24jca 553 . . . . . . . . . 10 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) ∧ 𝑠𝐸) → ((𝑠𝐹) ∈ 𝑇𝑂𝐸))
26 eleq1 2676 . . . . . . . . . . 11 (𝑓 = (𝑠𝐹) → (𝑓𝑇 ↔ (𝑠𝐹) ∈ 𝑇))
27 eleq1 2676 . . . . . . . . . . 11 (𝑡 = 𝑂 → (𝑡𝐸𝑂𝐸))
2826, 27bi2anan9 913 . . . . . . . . . 10 ((𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂) → ((𝑓𝑇𝑡𝐸) ↔ ((𝑠𝐹) ∈ 𝑇𝑂𝐸)))
2925, 28syl5ibrcom 236 . . . . . . . . 9 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) ∧ 𝑠𝐸) → ((𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂) → (𝑓𝑇𝑡𝐸)))
3029rexlimdva 3013 . . . . . . . 8 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂) → (𝑓𝑇𝑡𝐸)))
3130pm4.71rd 665 . . . . . . 7 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂) ↔ ((𝑓𝑇𝑡𝐸) ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))))
32 velsn 4141 . . . . . . . . 9 (𝑡 ∈ {𝑂} ↔ 𝑡 = 𝑂)
3332anbi2i 726 . . . . . . . 8 ((∃𝑠𝐸 𝑓 = (𝑠𝐹) ∧ 𝑡 ∈ {𝑂}) ↔ (∃𝑠𝐸 𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))
34 r19.41v 3070 . . . . . . . 8 (∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂) ↔ (∃𝑠𝐸 𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))
3533, 34bitr4i 266 . . . . . . 7 ((∃𝑠𝐸 𝑓 = (𝑠𝐹) ∧ 𝑡 ∈ {𝑂}) ↔ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))
36 df-3an 1033 . . . . . . 7 ((𝑓𝑇𝑡𝐸 ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂)) ↔ ((𝑓𝑇𝑡𝐸) ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂)))
3731, 35, 363bitr4g 302 . . . . . 6 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → ((∃𝑠𝐸 𝑓 = (𝑠𝐹) ∧ 𝑡 ∈ {𝑂}) ↔ (𝑓𝑇𝑡𝐸 ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))))
3819, 37bitrd 267 . . . . 5 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → ((𝑓 ∈ (((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) ∧ 𝑡 ∈ {𝑂}) ↔ (𝑓𝑇𝑡𝐸 ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))))
3915, 38syl5bb 271 . . . 4 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (⟨𝑓, 𝑡⟩ ∈ ((((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) × {𝑂}) ↔ (𝑓𝑇𝑡𝐸 ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))))
4014, 39opabbi2dv 5193 . . 3 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → ((((DIsoA‘𝐾)‘𝑊)‘(𝑅𝐹)) × {𝑂}) = {⟨𝑓, 𝑡⟩ ∣ (𝑓𝑇𝑡𝐸 ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))})
4113, 40eqtrd 2644 . 2 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (𝐼‘(𝑅𝐹)) = {⟨𝑓, 𝑡⟩ ∣ (𝑓𝑇𝑡𝐸 ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))})
42 eqeq1 2614 . . . . 5 (𝑔 = ⟨𝑓, 𝑡⟩ → (𝑔 = ⟨(𝑠𝐹), 𝑂⟩ ↔ ⟨𝑓, 𝑡⟩ = ⟨(𝑠𝐹), 𝑂⟩))
43 vex 3176 . . . . . 6 𝑓 ∈ V
44 vex 3176 . . . . . 6 𝑡 ∈ V
4543, 44opth 4871 . . . . 5 (⟨𝑓, 𝑡⟩ = ⟨(𝑠𝐹), 𝑂⟩ ↔ (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))
4642, 45syl6bb 275 . . . 4 (𝑔 = ⟨𝑓, 𝑡⟩ → (𝑔 = ⟨(𝑠𝐹), 𝑂⟩ ↔ (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂)))
4746rexbidv 3034 . . 3 (𝑔 = ⟨𝑓, 𝑡⟩ → (∃𝑠𝐸 𝑔 = ⟨(𝑠𝐹), 𝑂⟩ ↔ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂)))
4847rabxp 5078 . 2 {𝑔 ∈ (𝑇 × 𝐸) ∣ ∃𝑠𝐸 𝑔 = ⟨(𝑠𝐹), 𝑂⟩} = {⟨𝑓, 𝑡⟩ ∣ (𝑓𝑇𝑡𝐸 ∧ ∃𝑠𝐸 (𝑓 = (𝑠𝐹) ∧ 𝑡 = 𝑂))}
4941, 48syl6eqr 2662 1 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → (𝐼‘(𝑅𝐹)) = {𝑔 ∈ (𝑇 × 𝐸) ∣ ∃𝑠𝐸 𝑔 = ⟨(𝑠𝐹), 𝑂⟩})
 Colors of variables: wff setvar class 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
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