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Theorem axtgcgrrflx 25713
Description: Axiom of reflexivity of congruence, Axiom A1 of [Schwabhauser] p. 10. (Contributed by Thierry Arnoux, 14-Mar-2019.)
Hypotheses
Ref Expression
axtrkg.p 𝑃 = (Base‘𝐺)
axtrkg.d = (dist‘𝐺)
axtrkg.i 𝐼 = (Itv‘𝐺)
axtrkg.g (𝜑𝐺 ∈ TarskiG)
axtgcgrrflx.1 (𝜑𝑋𝑃)
axtgcgrrflx.2 (𝜑𝑌𝑃)
Assertion
Ref Expression
axtgcgrrflx (𝜑 → (𝑋 𝑌) = (𝑌 𝑋))

Proof of Theorem axtgcgrrflx
Dummy variables 𝑓 𝑖 𝑝 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 df-trkg 25704 . . . . 5 TarskiG = ((TarskiGC ∩ TarskiGB) ∩ (TarskiGCB ∩ {𝑓[(Base‘𝑓) / 𝑝][(Itv‘𝑓) / 𝑖](LineG‘𝑓) = (𝑥𝑝, 𝑦 ∈ (𝑝 ∖ {𝑥}) ↦ {𝑧𝑝 ∣ (𝑧 ∈ (𝑥𝑖𝑦) ∨ 𝑥 ∈ (𝑧𝑖𝑦) ∨ 𝑦 ∈ (𝑥𝑖𝑧))})}))
2 inss1 4028 . . . . . 6 ((TarskiGC ∩ TarskiGB) ∩ (TarskiGCB ∩ {𝑓[(Base‘𝑓) / 𝑝][(Itv‘𝑓) / 𝑖](LineG‘𝑓) = (𝑥𝑝, 𝑦 ∈ (𝑝 ∖ {𝑥}) ↦ {𝑧𝑝 ∣ (𝑧 ∈ (𝑥𝑖𝑦) ∨ 𝑥 ∈ (𝑧𝑖𝑦) ∨ 𝑦 ∈ (𝑥𝑖𝑧))})})) ⊆ (TarskiGC ∩ TarskiGB)
3 inss1 4028 . . . . . 6 (TarskiGC ∩ TarskiGB) ⊆ TarskiGC
42, 3sstri 3807 . . . . 5 ((TarskiGC ∩ TarskiGB) ∩ (TarskiGCB ∩ {𝑓[(Base‘𝑓) / 𝑝][(Itv‘𝑓) / 𝑖](LineG‘𝑓) = (𝑥𝑝, 𝑦 ∈ (𝑝 ∖ {𝑥}) ↦ {𝑧𝑝 ∣ (𝑧 ∈ (𝑥𝑖𝑦) ∨ 𝑥 ∈ (𝑧𝑖𝑦) ∨ 𝑦 ∈ (𝑥𝑖𝑧))})})) ⊆ TarskiGC
51, 4eqsstri 3831 . . . 4 TarskiG ⊆ TarskiGC
6 axtrkg.g . . . 4 (𝜑𝐺 ∈ TarskiG)
75, 6sseldi 3796 . . 3 (𝜑𝐺 ∈ TarskiGC)
8 axtrkg.p . . . . . 6 𝑃 = (Base‘𝐺)
9 axtrkg.d . . . . . 6 = (dist‘𝐺)
10 axtrkg.i . . . . . 6 𝐼 = (Itv‘𝐺)
118, 9, 10istrkgc 25705 . . . . 5 (𝐺 ∈ TarskiGC ↔ (𝐺 ∈ V ∧ (∀𝑥𝑃𝑦𝑃 (𝑥 𝑦) = (𝑦 𝑥) ∧ ∀𝑥𝑃𝑦𝑃𝑧𝑃 ((𝑥 𝑦) = (𝑧 𝑧) → 𝑥 = 𝑦))))
1211simprbi 491 . . . 4 (𝐺 ∈ TarskiGC → (∀𝑥𝑃𝑦𝑃 (𝑥 𝑦) = (𝑦 𝑥) ∧ ∀𝑥𝑃𝑦𝑃𝑧𝑃 ((𝑥 𝑦) = (𝑧 𝑧) → 𝑥 = 𝑦)))
1312simpld 489 . . 3 (𝐺 ∈ TarskiGC → ∀𝑥𝑃𝑦𝑃 (𝑥 𝑦) = (𝑦 𝑥))
147, 13syl 17 . 2 (𝜑 → ∀𝑥𝑃𝑦𝑃 (𝑥 𝑦) = (𝑦 𝑥))
15 axtgcgrrflx.1 . . 3 (𝜑𝑋𝑃)
16 axtgcgrrflx.2 . . 3 (𝜑𝑌𝑃)
17 oveq1 6885 . . . . 5 (𝑥 = 𝑋 → (𝑥 𝑦) = (𝑋 𝑦))
18 oveq2 6886 . . . . 5 (𝑥 = 𝑋 → (𝑦 𝑥) = (𝑦 𝑋))
1917, 18eqeq12d 2814 . . . 4 (𝑥 = 𝑋 → ((𝑥 𝑦) = (𝑦 𝑥) ↔ (𝑋 𝑦) = (𝑦 𝑋)))
20 oveq2 6886 . . . . 5 (𝑦 = 𝑌 → (𝑋 𝑦) = (𝑋 𝑌))
21 oveq1 6885 . . . . 5 (𝑦 = 𝑌 → (𝑦 𝑋) = (𝑌 𝑋))
2220, 21eqeq12d 2814 . . . 4 (𝑦 = 𝑌 → ((𝑋 𝑦) = (𝑦 𝑋) ↔ (𝑋 𝑌) = (𝑌 𝑋)))
2319, 22rspc2v 3510 . . 3 ((𝑋𝑃𝑌𝑃) → (∀𝑥𝑃𝑦𝑃 (𝑥 𝑦) = (𝑦 𝑥) → (𝑋 𝑌) = (𝑌 𝑋)))
2415, 16, 23syl2anc 580 . 2 (𝜑 → (∀𝑥𝑃𝑦𝑃 (𝑥 𝑦) = (𝑦 𝑥) → (𝑋 𝑌) = (𝑌 𝑋)))
2514, 24mpd 15 1 (𝜑 → (𝑋 𝑌) = (𝑌 𝑋))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 385  w3o 1107   = wceq 1653  wcel 2157  {cab 2785  wral 3089  {crab 3093  Vcvv 3385  [wsbc 3633  cdif 3766  cin 3768  {csn 4368  cfv 6101  (class class class)co 6878  cmpt2 6880  Basecbs 16184  distcds 16276  TarskiGcstrkg 25681  TarskiGCcstrkgc 25682  TarskiGBcstrkgb 25683  TarskiGCBcstrkgcb 25684  Itvcitv 25687  LineGclng 25688
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1891  ax-4 1905  ax-5 2006  ax-6 2072  ax-7 2107  ax-9 2166  ax-10 2185  ax-11 2200  ax-12 2213  ax-13 2377  ax-ext 2777  ax-nul 4983
This theorem depends on definitions:  df-bi 199  df-an 386  df-or 875  df-3an 1110  df-tru 1657  df-ex 1876  df-nf 1880  df-sb 2065  df-mo 2591  df-eu 2609  df-clab 2786  df-cleq 2792  df-clel 2795  df-nfc 2930  df-ral 3094  df-rex 3095  df-rab 3098  df-v 3387  df-sbc 3634  df-dif 3772  df-un 3774  df-in 3776  df-ss 3783  df-nul 4116  df-if 4278  df-sn 4369  df-pr 4371  df-op 4375  df-uni 4629  df-br 4844  df-iota 6064  df-fv 6109  df-ov 6881  df-trkgc 25699  df-trkg 25704
This theorem is referenced by:  tgcgrcomimp  25728  tgcgrcomr  25729  tgcgrcoml  25730  tgcgrcomlr  25731  tgbtwnconn1lem1  25823  tgbtwnconn1lem2  25824  tgbtwnconn1lem3  25825  miriso  25921  symquadlem  25940  midexlem  25943  footex  25969  colperpexlem1  25978  opphllem  25983  cgraswap  26068  isoas  26101  f1otrg  26108
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