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Theorem footexlem1 26984
Description: Lemma for footex 26986. (Contributed by Thierry Arnoux, 19-Oct-2019.) (Revised by Thierry Arnoux, 1-Jul-2023.)
Hypotheses
Ref Expression
isperp.p 𝑃 = (Base‘𝐺)
isperp.d = (dist‘𝐺)
isperp.i 𝐼 = (Itv‘𝐺)
isperp.l 𝐿 = (LineG‘𝐺)
isperp.g (𝜑𝐺 ∈ TarskiG)
isperp.a (𝜑𝐴 ∈ ran 𝐿)
foot.x (𝜑𝐶𝑃)
foot.y (𝜑 → ¬ 𝐶𝐴)
footexlem.e (𝜑𝐸𝑃)
footexlem.f (𝜑𝐹𝑃)
footexlem.r (𝜑𝑅𝑃)
footexlem.x (𝜑𝑋𝑃)
footexlem.y (𝜑𝑌𝑃)
footexlem.z (𝜑𝑍𝑃)
footexlem.d (𝜑𝐷𝑃)
footexlem.1 (𝜑𝐴 = (𝐸𝐿𝐹))
footexlem.2 (𝜑𝐸𝐹)
footexlem.3 (𝜑𝐸 ∈ (𝐹𝐼𝑌))
footexlem.4 (𝜑 → (𝐸 𝑌) = (𝐸 𝐶))
footexlem.5 (𝜑𝐶 = (((pInvG‘𝐺)‘𝑅)‘𝑌))
footexlem.6 (𝜑𝑌 ∈ (𝐸𝐼𝑍))
footexlem.7 (𝜑 → (𝑌 𝑍) = (𝑌 𝑅))
footexlem.q (𝜑𝑄𝑃)
footexlem.8 (𝜑𝑌 ∈ (𝑅𝐼𝑄))
footexlem.9 (𝜑 → (𝑌 𝑄) = (𝑌 𝐸))
footexlem.10 (𝜑𝑌 ∈ ((((pInvG‘𝐺)‘𝑍)‘𝑄)𝐼𝐷))
footexlem.11 (𝜑 → (𝑌 𝐷) = (𝑌 𝐶))
footexlem.12 (𝜑𝐷 = (((pInvG‘𝐺)‘𝑋)‘𝐶))
Assertion
Ref Expression
footexlem1 (𝜑𝑋𝐴)

Proof of Theorem footexlem1
StepHypRef Expression
1 isperp.p . . 3 𝑃 = (Base‘𝐺)
2 isperp.i . . 3 𝐼 = (Itv‘𝐺)
3 isperp.l . . 3 𝐿 = (LineG‘𝐺)
4 isperp.g . . 3 (𝜑𝐺 ∈ TarskiG)
5 footexlem.y . . 3 (𝜑𝑌𝑃)
6 footexlem.z . . 3 (𝜑𝑍𝑃)
7 footexlem.x . . 3 (𝜑𝑋𝑃)
8 isperp.d . . . 4 = (dist‘𝐺)
9 footexlem.r . . . 4 (𝜑𝑅𝑃)
10 footexlem.7 . . . . 5 (𝜑 → (𝑌 𝑍) = (𝑌 𝑅))
1110eqcomd 2744 . . . 4 (𝜑 → (𝑌 𝑅) = (𝑌 𝑍))
12 footexlem.5 . . . . . . 7 (𝜑𝐶 = (((pInvG‘𝐺)‘𝑅)‘𝑌))
13 footexlem.e . . . . . . . . . . 11 (𝜑𝐸𝑃)
14 footexlem.f . . . . . . . . . . 11 (𝜑𝐹𝑃)
15 footexlem.2 . . . . . . . . . . 11 (𝜑𝐸𝐹)
1615necomd 2998 . . . . . . . . . . . 12 (𝜑𝐹𝐸)
17 footexlem.3 . . . . . . . . . . . 12 (𝜑𝐸 ∈ (𝐹𝐼𝑌))
181, 2, 3, 4, 14, 13, 5, 16, 17btwnlng3 26886 . . . . . . . . . . 11 (𝜑𝑌 ∈ (𝐹𝐿𝐸))
191, 2, 3, 4, 13, 14, 5, 15, 18lncom 26887 . . . . . . . . . 10 (𝜑𝑌 ∈ (𝐸𝐿𝐹))
20 footexlem.1 . . . . . . . . . 10 (𝜑𝐴 = (𝐸𝐿𝐹))
2119, 20eleqtrrd 2842 . . . . . . . . 9 (𝜑𝑌𝐴)
22 foot.y . . . . . . . . 9 (𝜑 → ¬ 𝐶𝐴)
23 nelne2 3041 . . . . . . . . 9 ((𝑌𝐴 ∧ ¬ 𝐶𝐴) → 𝑌𝐶)
2421, 22, 23syl2anc 583 . . . . . . . 8 (𝜑𝑌𝐶)
2524necomd 2998 . . . . . . 7 (𝜑𝐶𝑌)
2612, 25eqnetrrd 3011 . . . . . 6 (𝜑 → (((pInvG‘𝐺)‘𝑅)‘𝑌) ≠ 𝑌)
27 eqid 2738 . . . . . . . 8 (pInvG‘𝐺) = (pInvG‘𝐺)
28 eqid 2738 . . . . . . . 8 ((pInvG‘𝐺)‘𝑅) = ((pInvG‘𝐺)‘𝑅)
291, 8, 2, 3, 27, 4, 9, 28, 5mirinv 26931 . . . . . . 7 (𝜑 → ((((pInvG‘𝐺)‘𝑅)‘𝑌) = 𝑌𝑅 = 𝑌))
3029necon3bid 2987 . . . . . 6 (𝜑 → ((((pInvG‘𝐺)‘𝑅)‘𝑌) ≠ 𝑌𝑅𝑌))
3126, 30mpbid 231 . . . . 5 (𝜑𝑅𝑌)
3231necomd 2998 . . . 4 (𝜑𝑌𝑅)
331, 8, 2, 4, 5, 9, 5, 6, 11, 32tgcgrneq 26748 . . 3 (𝜑𝑌𝑍)
3433necomd 2998 . . . 4 (𝜑𝑍𝑌)
35 eqid 2738 . . . . 5 ((pInvG‘𝐺)‘𝑍) = ((pInvG‘𝐺)‘𝑍)
36 eqid 2738 . . . . 5 ((pInvG‘𝐺)‘𝑋) = ((pInvG‘𝐺)‘𝑋)
37 footexlem.q . . . . 5 (𝜑𝑄𝑃)
381, 8, 2, 3, 27, 4, 6, 35, 37mircl 26926 . . . . 5 (𝜑 → (((pInvG‘𝐺)‘𝑍)‘𝑄) ∈ 𝑃)
39 foot.x . . . . 5 (𝜑𝐶𝑃)
40 footexlem.d . . . . 5 (𝜑𝐷𝑃)
411, 8, 2, 3, 27, 4, 9, 28, 5mirbtwn 26923 . . . . . . . 8 (𝜑𝑅 ∈ ((((pInvG‘𝐺)‘𝑅)‘𝑌)𝐼𝑌))
4212oveq1d 7270 . . . . . . . 8 (𝜑 → (𝐶𝐼𝑌) = ((((pInvG‘𝐺)‘𝑅)‘𝑌)𝐼𝑌))
4341, 42eleqtrrd 2842 . . . . . . 7 (𝜑𝑅 ∈ (𝐶𝐼𝑌))
44 footexlem.8 . . . . . . 7 (𝜑𝑌 ∈ (𝑅𝐼𝑄))
451, 8, 2, 4, 39, 9, 5, 37, 31, 43, 44tgbtwnouttr2 26760 . . . . . 6 (𝜑𝑌 ∈ (𝐶𝐼𝑄))
461, 8, 2, 4, 39, 5, 37, 45tgbtwncom 26753 . . . . 5 (𝜑𝑌 ∈ (𝑄𝐼𝐶))
47 footexlem.10 . . . . 5 (𝜑𝑌 ∈ ((((pInvG‘𝐺)‘𝑍)‘𝑄)𝐼𝐷))
48 eqid 2738 . . . . . . . 8 (cgrG‘𝐺) = (cgrG‘𝐺)
49 footexlem.4 . . . . . . . . . 10 (𝜑 → (𝐸 𝑌) = (𝐸 𝐶))
5012oveq2d 7271 . . . . . . . . . 10 (𝜑 → (𝐸 𝐶) = (𝐸 (((pInvG‘𝐺)‘𝑅)‘𝑌)))
5149, 50eqtrd 2778 . . . . . . . . 9 (𝜑 → (𝐸 𝑌) = (𝐸 (((pInvG‘𝐺)‘𝑅)‘𝑌)))
521, 8, 2, 3, 27, 4, 13, 9, 5israg 26962 . . . . . . . . 9 (𝜑 → (⟨“𝐸𝑅𝑌”⟩ ∈ (∟G‘𝐺) ↔ (𝐸 𝑌) = (𝐸 (((pInvG‘𝐺)‘𝑅)‘𝑌))))
5351, 52mpbird 256 . . . . . . . 8 (𝜑 → ⟨“𝐸𝑅𝑌”⟩ ∈ (∟G‘𝐺))
54 footexlem.9 . . . . . . . . . . . . . 14 (𝜑 → (𝑌 𝑄) = (𝑌 𝐸))
551, 8, 2, 4, 13, 5, 13, 39, 49tgcgrcomlr 26745 . . . . . . . . . . . . . 14 (𝜑 → (𝑌 𝐸) = (𝐶 𝐸))
5654, 55eqtr2d 2779 . . . . . . . . . . . . 13 (𝜑 → (𝐶 𝐸) = (𝑌 𝑄))
571, 2, 3, 4, 13, 14, 15tglinerflx1 26898 . . . . . . . . . . . . . . . 16 (𝜑𝐸 ∈ (𝐸𝐿𝐹))
5857, 20eleqtrrd 2842 . . . . . . . . . . . . . . 15 (𝜑𝐸𝐴)
59 nelne2 3041 . . . . . . . . . . . . . . 15 ((𝐸𝐴 ∧ ¬ 𝐶𝐴) → 𝐸𝐶)
6058, 22, 59syl2anc 583 . . . . . . . . . . . . . 14 (𝜑𝐸𝐶)
6160necomd 2998 . . . . . . . . . . . . 13 (𝜑𝐶𝐸)
621, 8, 2, 4, 39, 13, 5, 37, 56, 61tgcgrneq 26748 . . . . . . . . . . . 12 (𝜑𝑌𝑄)
6362necomd 2998 . . . . . . . . . . 11 (𝜑𝑄𝑌)
641, 8, 2, 4, 9, 5, 37, 44tgbtwncom 26753 . . . . . . . . . . 11 (𝜑𝑌 ∈ (𝑄𝐼𝑅))
65 footexlem.6 . . . . . . . . . . 11 (𝜑𝑌 ∈ (𝐸𝐼𝑍))
661, 8, 2, 4, 5, 37, 5, 13, 54tgcgrcomlr 26745 . . . . . . . . . . 11 (𝜑 → (𝑄 𝑌) = (𝐸 𝑌))
671, 8, 2, 4, 37, 13axtgcgrrflx 26727 . . . . . . . . . . 11 (𝜑 → (𝑄 𝐸) = (𝐸 𝑄))
6854eqcomd 2744 . . . . . . . . . . 11 (𝜑 → (𝑌 𝐸) = (𝑌 𝑄))
691, 8, 2, 4, 37, 5, 9, 13, 5, 6, 13, 37, 63, 64, 65, 66, 11, 67, 68axtg5seg 26730 . . . . . . . . . 10 (𝜑 → (𝑅 𝐸) = (𝑍 𝑄))
701, 8, 2, 4, 9, 13, 6, 37, 69tgcgrcomlr 26745 . . . . . . . . 9 (𝜑 → (𝐸 𝑅) = (𝑄 𝑍))
711, 8, 2, 4, 5, 9, 5, 6, 11tgcgrcomlr 26745 . . . . . . . . 9 (𝜑 → (𝑅 𝑌) = (𝑍 𝑌))
721, 8, 48, 4, 13, 9, 5, 37, 6, 5, 70, 71, 68trgcgr 26781 . . . . . . . 8 (𝜑 → ⟨“𝐸𝑅𝑌”⟩(cgrG‘𝐺)⟨“𝑄𝑍𝑌”⟩)
731, 8, 2, 3, 27, 4, 13, 9, 5, 48, 37, 6, 5, 53, 72ragcgr 26972 . . . . . . 7 (𝜑 → ⟨“𝑄𝑍𝑌”⟩ ∈ (∟G‘𝐺))
741, 8, 2, 3, 27, 4, 37, 6, 5, 73ragcom 26963 . . . . . 6 (𝜑 → ⟨“𝑌𝑍𝑄”⟩ ∈ (∟G‘𝐺))
751, 8, 2, 3, 27, 4, 5, 6, 37israg 26962 . . . . . 6 (𝜑 → (⟨“𝑌𝑍𝑄”⟩ ∈ (∟G‘𝐺) ↔ (𝑌 𝑄) = (𝑌 (((pInvG‘𝐺)‘𝑍)‘𝑄))))
7674, 75mpbid 231 . . . . 5 (𝜑 → (𝑌 𝑄) = (𝑌 (((pInvG‘𝐺)‘𝑍)‘𝑄)))
77 footexlem.11 . . . . . 6 (𝜑 → (𝑌 𝐷) = (𝑌 𝐶))
7877eqcomd 2744 . . . . 5 (𝜑 → (𝑌 𝐶) = (𝑌 𝐷))
79 eqidd 2739 . . . . 5 (𝜑 → (((pInvG‘𝐺)‘𝑍)‘𝑄) = (((pInvG‘𝐺)‘𝑍)‘𝑄))
80 footexlem.12 . . . . 5 (𝜑𝐷 = (((pInvG‘𝐺)‘𝑋)‘𝐶))
811, 8, 2, 3, 27, 4, 35, 36, 37, 38, 5, 39, 40, 6, 7, 46, 47, 76, 78, 79, 80krippen 26956 . . . 4 (𝜑𝑌 ∈ (𝑍𝐼𝑋))
821, 2, 3, 4, 6, 5, 7, 34, 81btwnlng3 26886 . . 3 (𝜑𝑋 ∈ (𝑍𝐿𝑌))
831, 2, 3, 4, 5, 6, 7, 33, 82lncom 26887 . 2 (𝜑𝑋 ∈ (𝑌𝐿𝑍))
84 isperp.a . . 3 (𝜑𝐴 ∈ ran 𝐿)
8549eqcomd 2744 . . . . . 6 (𝜑 → (𝐸 𝐶) = (𝐸 𝑌))
861, 8, 2, 4, 13, 39, 13, 5, 85, 60tgcgrneq 26748 . . . . 5 (𝜑𝐸𝑌)
871, 2, 3, 4, 13, 5, 6, 86, 65btwnlng3 26886 . . . 4 (𝜑𝑍 ∈ (𝐸𝐿𝑌))
881, 2, 3, 4, 13, 5, 86, 86, 84, 58, 21tglinethru 26901 . . . 4 (𝜑𝐴 = (𝐸𝐿𝑌))
8987, 88eleqtrrd 2842 . . 3 (𝜑𝑍𝐴)
901, 2, 3, 4, 5, 6, 33, 33, 84, 21, 89tglinethru 26901 . 2 (𝜑𝐴 = (𝑌𝐿𝑍))
9183, 90eleqtrrd 2842 1 (𝜑𝑋𝐴)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4   = wceq 1539  wcel 2108  wne 2942  ran crn 5581  cfv 6418  (class class class)co 7255  ⟨“cs3 14483  Basecbs 16840  distcds 16897  TarskiGcstrkg 26693  Itvcitv 26699  LineGclng 26700  cgrGccgrg 26775  pInvGcmir 26917  ∟Gcrag 26958
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566  ax-cnex 10858  ax-resscn 10859  ax-1cn 10860  ax-icn 10861  ax-addcl 10862  ax-addrcl 10863  ax-mulcl 10864  ax-mulrcl 10865  ax-mulcom 10866  ax-addass 10867  ax-mulass 10868  ax-distr 10869  ax-i2m1 10870  ax-1ne0 10871  ax-1rid 10872  ax-rnegex 10873  ax-rrecex 10874  ax-cnre 10875  ax-pre-lttri 10876  ax-pre-lttrn 10877  ax-pre-ltadd 10878  ax-pre-mulgt0 10879
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-nel 3049  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3902  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-tp 4563  df-op 4565  df-uni 4837  df-int 4877  df-iun 4923  df-br 5071  df-opab 5133  df-mpt 5154  df-tr 5188  df-id 5480  df-eprel 5486  df-po 5494  df-so 5495  df-fr 5535  df-we 5537  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-pred 6191  df-ord 6254  df-on 6255  df-lim 6256  df-suc 6257  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-om 7688  df-1st 7804  df-2nd 7805  df-frecs 8068  df-wrecs 8099  df-recs 8173  df-rdg 8212  df-1o 8267  df-oadd 8271  df-er 8456  df-map 8575  df-pm 8576  df-en 8692  df-dom 8693  df-sdom 8694  df-fin 8695  df-dju 9590  df-card 9628  df-pnf 10942  df-mnf 10943  df-xr 10944  df-ltxr 10945  df-le 10946  df-sub 11137  df-neg 11138  df-nn 11904  df-2 11966  df-3 11967  df-n0 12164  df-xnn0 12236  df-z 12250  df-uz 12512  df-fz 13169  df-fzo 13312  df-hash 13973  df-word 14146  df-concat 14202  df-s1 14229  df-s2 14489  df-s3 14490  df-trkgc 26713  df-trkgb 26714  df-trkgcb 26715  df-trkg 26718  df-cgrg 26776  df-leg 26848  df-mir 26918  df-rag 26959
This theorem is referenced by:  footexlem2  26985  footex  26986
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