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Theorem ltrncoidN 37132
Description: Two translations are equal if the composition of one with the converse of the other is the zero translation. This is an analogue of vector subtraction. (Contributed by NM, 7-Apr-2014.) (New usage is discouraged.)
Hypotheses
Ref Expression
ltrn1o.b 𝐵 = (Base‘𝐾)
ltrn1o.h 𝐻 = (LHyp‘𝐾)
ltrn1o.t 𝑇 = ((LTrn‘𝐾)‘𝑊)
Assertion
Ref Expression
ltrncoidN (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) → ((𝐹𝐺) = ( I ↾ 𝐵) ↔ 𝐹 = 𝐺))

Proof of Theorem ltrncoidN
StepHypRef Expression
1 simpl1 1185 . . . . . . . 8 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → (𝐾 ∈ HL ∧ 𝑊𝐻))
2 simpl3 1187 . . . . . . . 8 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → 𝐺𝑇)
3 ltrn1o.b . . . . . . . . 9 𝐵 = (Base‘𝐾)
4 ltrn1o.h . . . . . . . . 9 𝐻 = (LHyp‘𝐾)
5 ltrn1o.t . . . . . . . . 9 𝑇 = ((LTrn‘𝐾)‘𝑊)
63, 4, 5ltrn1o 37128 . . . . . . . 8 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐺𝑇) → 𝐺:𝐵1-1-onto𝐵)
71, 2, 6syl2anc 584 . . . . . . 7 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → 𝐺:𝐵1-1-onto𝐵)
8 f1ococnv1 6639 . . . . . . 7 (𝐺:𝐵1-1-onto𝐵 → (𝐺𝐺) = ( I ↾ 𝐵))
97, 8syl 17 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → (𝐺𝐺) = ( I ↾ 𝐵))
109coeq2d 5731 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → (𝐹 ∘ (𝐺𝐺)) = (𝐹 ∘ ( I ↾ 𝐵)))
11 simpl2 1186 . . . . . . 7 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → 𝐹𝑇)
123, 4, 5ltrn1o 37128 . . . . . . 7 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇) → 𝐹:𝐵1-1-onto𝐵)
131, 11, 12syl2anc 584 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → 𝐹:𝐵1-1-onto𝐵)
14 f1of 6611 . . . . . 6 (𝐹:𝐵1-1-onto𝐵𝐹:𝐵𝐵)
15 fcoi1 6548 . . . . . 6 (𝐹:𝐵𝐵 → (𝐹 ∘ ( I ↾ 𝐵)) = 𝐹)
1613, 14, 153syl 18 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → (𝐹 ∘ ( I ↾ 𝐵)) = 𝐹)
1710, 16eqtr2d 2861 . . . 4 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → 𝐹 = (𝐹 ∘ (𝐺𝐺)))
18 coass 6115 . . . 4 ((𝐹𝐺) ∘ 𝐺) = (𝐹 ∘ (𝐺𝐺))
1917, 18syl6eqr 2878 . . 3 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → 𝐹 = ((𝐹𝐺) ∘ 𝐺))
20 simpr 485 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → (𝐹𝐺) = ( I ↾ 𝐵))
2120coeq1d 5730 . . . 4 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → ((𝐹𝐺) ∘ 𝐺) = (( I ↾ 𝐵) ∘ 𝐺))
22 f1of 6611 . . . . 5 (𝐺:𝐵1-1-onto𝐵𝐺:𝐵𝐵)
23 fcoi2 6549 . . . . 5 (𝐺:𝐵𝐵 → (( I ↾ 𝐵) ∘ 𝐺) = 𝐺)
247, 22, 233syl 18 . . . 4 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → (( I ↾ 𝐵) ∘ 𝐺) = 𝐺)
2521, 24eqtrd 2860 . . 3 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → ((𝐹𝐺) ∘ 𝐺) = 𝐺)
2619, 25eqtrd 2860 . 2 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝐹𝐺) = ( I ↾ 𝐵)) → 𝐹 = 𝐺)
27 simpr 485 . . . 4 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ 𝐹 = 𝐺) → 𝐹 = 𝐺)
2827coeq1d 5730 . . 3 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ 𝐹 = 𝐺) → (𝐹𝐺) = (𝐺𝐺))
29 simpl1 1185 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ 𝐹 = 𝐺) → (𝐾 ∈ HL ∧ 𝑊𝐻))
30 simpl3 1187 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ 𝐹 = 𝐺) → 𝐺𝑇)
3129, 30, 6syl2anc 584 . . . 4 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ 𝐹 = 𝐺) → 𝐺:𝐵1-1-onto𝐵)
32 f1ococnv2 6637 . . . 4 (𝐺:𝐵1-1-onto𝐵 → (𝐺𝐺) = ( I ↾ 𝐵))
3331, 32syl 17 . . 3 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ 𝐹 = 𝐺) → (𝐺𝐺) = ( I ↾ 𝐵))
3428, 33eqtrd 2860 . 2 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ 𝐹 = 𝐺) → (𝐹𝐺) = ( I ↾ 𝐵))
3526, 34impbida 797 1 (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) → ((𝐹𝐺) = ( I ↾ 𝐵) ↔ 𝐹 = 𝐺))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 207  wa 396  w3a 1081   = wceq 1530  wcel 2106   I cid 5457  ccnv 5552  cres 5555  ccom 5557  wf 6347  1-1-ontowf1o 6350  cfv 6351  Basecbs 16475  HLchlt 36354  LHypclh 36988  LTrncltrn 37105
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1904  ax-6 1963  ax-7 2008  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2152  ax-12 2167  ax-ext 2796  ax-rep 5186  ax-sep 5199  ax-nul 5206  ax-pow 5262  ax-pr 5325  ax-un 7454
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 844  df-3an 1083  df-tru 1533  df-ex 1774  df-nf 1778  df-sb 2063  df-mo 2615  df-eu 2649  df-clab 2803  df-cleq 2817  df-clel 2897  df-nfc 2967  df-ne 3021  df-ral 3147  df-rex 3148  df-reu 3149  df-rab 3151  df-v 3501  df-sbc 3776  df-csb 3887  df-dif 3942  df-un 3944  df-in 3946  df-ss 3955  df-nul 4295  df-if 4470  df-pw 4543  df-sn 4564  df-pr 4566  df-op 4570  df-uni 4837  df-iun 4918  df-br 5063  df-opab 5125  df-mpt 5143  df-id 5458  df-xp 5559  df-rel 5560  df-cnv 5561  df-co 5562  df-dm 5563  df-rn 5564  df-res 5565  df-ima 5566  df-iota 6311  df-fun 6353  df-fn 6354  df-f 6355  df-f1 6356  df-fo 6357  df-f1o 6358  df-fv 6359  df-ov 7154  df-oprab 7155  df-mpo 7156  df-map 8401  df-laut 36993  df-ldil 37108  df-ltrn 37109
This theorem is referenced by:  tendospcanN  38027
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