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Theorem tgcgrsub2 28681
Description: Removing identical parts from the end of a line segment preserves congruence. In this version the order of points is not known. (Contributed by Thierry Arnoux, 3-Apr-2019.)
Hypotheses
Ref Expression
legval.p 𝑃 = (Base‘𝐺)
legval.d = (dist‘𝐺)
legval.i 𝐼 = (Itv‘𝐺)
legval.l = (≤G‘𝐺)
legval.g (𝜑𝐺 ∈ TarskiG)
legid.a (𝜑𝐴𝑃)
legid.b (𝜑𝐵𝑃)
legtrd.c (𝜑𝐶𝑃)
legtrd.d (𝜑𝐷𝑃)
tgcgrsub2.d (𝜑𝐷𝑃)
tgcgrsub2.e (𝜑𝐸𝑃)
tgcgrsub2.f (𝜑𝐹𝑃)
tgcgrsub2.1 (𝜑 → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵)))
tgcgrsub2.2 (𝜑 → (𝐸 ∈ (𝐷𝐼𝐹) ∨ 𝐹 ∈ (𝐷𝐼𝐸)))
tgcgrsub2.3 (𝜑 → (𝐴 𝐵) = (𝐷 𝐸))
tgcgrsub2.4 (𝜑 → (𝐴 𝐶) = (𝐷 𝐹))
Assertion
Ref Expression
tgcgrsub2 (𝜑 → (𝐵 𝐶) = (𝐸 𝐹))

Proof of Theorem tgcgrsub2
StepHypRef Expression
1 legval.p . . 3 𝑃 = (Base‘𝐺)
2 legval.d . . 3 = (dist‘𝐺)
3 legval.i . . 3 𝐼 = (Itv‘𝐺)
4 legval.g . . . 4 (𝜑𝐺 ∈ TarskiG)
54adantr 480 . . 3 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐺 ∈ TarskiG)
6 legtrd.c . . . 4 (𝜑𝐶𝑃)
76adantr 480 . . 3 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐶𝑃)
8 legid.b . . . 4 (𝜑𝐵𝑃)
98adantr 480 . . 3 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐵𝑃)
10 tgcgrsub2.f . . . 4 (𝜑𝐹𝑃)
1110adantr 480 . . 3 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐹𝑃)
12 tgcgrsub2.e . . . 4 (𝜑𝐸𝑃)
1312adantr 480 . . 3 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐸𝑃)
14 legid.a . . . . 5 (𝜑𝐴𝑃)
1514adantr 480 . . . 4 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐴𝑃)
16 legtrd.d . . . . 5 (𝜑𝐷𝑃)
1716adantr 480 . . . 4 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐷𝑃)
18 simpr 484 . . . . 5 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐵 ∈ (𝐴𝐼𝐶))
191, 2, 3, 5, 15, 9, 7, 18tgbtwncom 28574 . . . 4 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐵 ∈ (𝐶𝐼𝐴))
20 legval.l . . . . . 6 = (≤G‘𝐺)
21 tgcgrsub2.2 . . . . . . 7 (𝜑 → (𝐸 ∈ (𝐷𝐼𝐹) ∨ 𝐹 ∈ (𝐷𝐼𝐸)))
2221adantr 480 . . . . . 6 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐸 ∈ (𝐷𝐼𝐹) ∨ 𝐹 ∈ (𝐷𝐼𝐸)))
231, 2, 3, 20, 5, 15, 9, 7, 18btwnleg 28674 . . . . . . 7 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐴 𝐵) (𝐴 𝐶))
24 tgcgrsub2.3 . . . . . . . 8 (𝜑 → (𝐴 𝐵) = (𝐷 𝐸))
2524adantr 480 . . . . . . 7 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐴 𝐵) = (𝐷 𝐸))
26 tgcgrsub2.4 . . . . . . . 8 (𝜑 → (𝐴 𝐶) = (𝐷 𝐹))
2726adantr 480 . . . . . . 7 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐴 𝐶) = (𝐷 𝐹))
2823, 25, 273brtr3d 5117 . . . . . 6 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐷 𝐸) (𝐷 𝐹))
291, 2, 3, 20, 5, 13, 11, 17, 17, 22, 28legbtwn 28680 . . . . 5 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐸 ∈ (𝐷𝐼𝐹))
301, 2, 3, 5, 17, 13, 11, 29tgbtwncom 28574 . . . 4 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → 𝐸 ∈ (𝐹𝐼𝐷))
311, 2, 3, 4, 14, 6, 16, 10, 26tgcgrcomlr 28566 . . . . 5 (𝜑 → (𝐶 𝐴) = (𝐹 𝐷))
3231adantr 480 . . . 4 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐶 𝐴) = (𝐹 𝐷))
331, 2, 3, 4, 14, 8, 16, 12, 24tgcgrcomlr 28566 . . . . 5 (𝜑 → (𝐵 𝐴) = (𝐸 𝐷))
3433adantr 480 . . . 4 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐵 𝐴) = (𝐸 𝐷))
351, 2, 3, 5, 7, 9, 15, 11, 13, 17, 19, 30, 32, 34tgcgrsub 28595 . . 3 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐶 𝐵) = (𝐹 𝐸))
361, 2, 3, 5, 7, 9, 11, 13, 35tgcgrcomlr 28566 . 2 ((𝜑𝐵 ∈ (𝐴𝐼𝐶)) → (𝐵 𝐶) = (𝐸 𝐹))
374adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐺 ∈ TarskiG)
388adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐵𝑃)
396adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐶𝑃)
4014adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐴𝑃)
4112adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐸𝑃)
4210adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐹𝑃)
4316adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐷𝑃)
44 simpr 484 . . . 4 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐶 ∈ (𝐴𝐼𝐵))
451, 2, 3, 37, 40, 39, 38, 44tgbtwncom 28574 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐶 ∈ (𝐵𝐼𝐴))
4621orcomd 872 . . . . . 6 (𝜑 → (𝐹 ∈ (𝐷𝐼𝐸) ∨ 𝐸 ∈ (𝐷𝐼𝐹)))
4746adantr 480 . . . . 5 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → (𝐹 ∈ (𝐷𝐼𝐸) ∨ 𝐸 ∈ (𝐷𝐼𝐹)))
481, 2, 3, 20, 37, 40, 39, 38, 44btwnleg 28674 . . . . . 6 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → (𝐴 𝐶) (𝐴 𝐵))
4926adantr 480 . . . . . 6 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → (𝐴 𝐶) = (𝐷 𝐹))
5024adantr 480 . . . . . 6 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → (𝐴 𝐵) = (𝐷 𝐸))
5148, 49, 503brtr3d 5117 . . . . 5 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → (𝐷 𝐹) (𝐷 𝐸))
521, 2, 3, 20, 37, 42, 41, 43, 43, 47, 51legbtwn 28680 . . . 4 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐹 ∈ (𝐷𝐼𝐸))
531, 2, 3, 37, 43, 42, 41, 52tgbtwncom 28574 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → 𝐹 ∈ (𝐸𝐼𝐷))
5433adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → (𝐵 𝐴) = (𝐸 𝐷))
5531adantr 480 . . 3 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → (𝐶 𝐴) = (𝐹 𝐷))
561, 2, 3, 37, 38, 39, 40, 41, 42, 43, 45, 53, 54, 55tgcgrsub 28595 . 2 ((𝜑𝐶 ∈ (𝐴𝐼𝐵)) → (𝐵 𝐶) = (𝐸 𝐹))
57 tgcgrsub2.1 . 2 (𝜑 → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵)))
5836, 56, 57mpjaodan 961 1 (𝜑 → (𝐵 𝐶) = (𝐸 𝐹))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  wo 848   = wceq 1542  wcel 2114  cfv 6494  (class class class)co 7362  Basecbs 17174  distcds 17224  TarskiGcstrkg 28513  Itvcitv 28519  ≤Gcleg 28668
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-rep 5213  ax-sep 5232  ax-nul 5242  ax-pow 5304  ax-pr 5372  ax-un 7684  ax-cnex 11089  ax-resscn 11090  ax-1cn 11091  ax-icn 11092  ax-addcl 11093  ax-addrcl 11094  ax-mulcl 11095  ax-mulrcl 11096  ax-mulcom 11097  ax-addass 11098  ax-mulass 11099  ax-distr 11100  ax-i2m1 11101  ax-1ne0 11102  ax-1rid 11103  ax-rnegex 11104  ax-rrecex 11105  ax-cnre 11106  ax-pre-lttri 11107  ax-pre-lttrn 11108  ax-pre-ltadd 11109  ax-pre-mulgt0 11110
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-nel 3038  df-ral 3053  df-rex 3063  df-reu 3344  df-rab 3391  df-v 3432  df-sbc 3730  df-csb 3839  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-pss 3910  df-nul 4275  df-if 4468  df-pw 4544  df-sn 4569  df-pr 4571  df-tp 4573  df-op 4575  df-uni 4852  df-int 4891  df-iun 4936  df-br 5087  df-opab 5149  df-mpt 5168  df-tr 5194  df-id 5521  df-eprel 5526  df-po 5534  df-so 5535  df-fr 5579  df-we 5581  df-xp 5632  df-rel 5633  df-cnv 5634  df-co 5635  df-dm 5636  df-rn 5637  df-res 5638  df-ima 5639  df-pred 6261  df-ord 6322  df-on 6323  df-lim 6324  df-suc 6325  df-iota 6450  df-fun 6496  df-fn 6497  df-f 6498  df-f1 6499  df-fo 6500  df-f1o 6501  df-fv 6502  df-riota 7319  df-ov 7365  df-oprab 7366  df-mpo 7367  df-om 7813  df-1st 7937  df-2nd 7938  df-frecs 8226  df-wrecs 8257  df-recs 8306  df-rdg 8344  df-1o 8400  df-oadd 8404  df-er 8638  df-pm 8771  df-en 8889  df-dom 8890  df-sdom 8891  df-fin 8892  df-dju 9820  df-card 9858  df-pnf 11176  df-mnf 11177  df-xr 11178  df-ltxr 11179  df-le 11180  df-sub 11374  df-neg 11375  df-nn 12170  df-2 12239  df-3 12240  df-n0 12433  df-xnn0 12506  df-z 12520  df-uz 12784  df-fz 13457  df-fzo 13604  df-hash 14288  df-word 14471  df-concat 14528  df-s1 14554  df-s2 14805  df-s3 14806  df-trkgc 28534  df-trkgb 28535  df-trkgcb 28536  df-trkg 28539  df-cgrg 28597  df-leg 28669
This theorem is referenced by:  cgracgr  28904  cgraswap  28906
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