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Theorem tgbtwnexch 25613
 Description: Outer transitivity law for betweenness. Right-hand side of Theorem 3.6 of [Schwabhauser] p. 30. (Contributed by Thierry Arnoux, 23-Mar-2019.)
Hypotheses
Ref Expression
tkgeom.p 𝑃 = (Base‘𝐺)
tkgeom.d = (dist‘𝐺)
tkgeom.i 𝐼 = (Itv‘𝐺)
tkgeom.g (𝜑𝐺 ∈ TarskiG)
tgbtwnintr.1 (𝜑𝐴𝑃)
tgbtwnintr.2 (𝜑𝐵𝑃)
tgbtwnintr.3 (𝜑𝐶𝑃)
tgbtwnintr.4 (𝜑𝐷𝑃)
tgbtwnexch.1 (𝜑𝐵 ∈ (𝐴𝐼𝐶))
tgbtwnexch.2 (𝜑𝐶 ∈ (𝐴𝐼𝐷))
Assertion
Ref Expression
tgbtwnexch (𝜑𝐵 ∈ (𝐴𝐼𝐷))

Proof of Theorem tgbtwnexch
StepHypRef Expression
1 tkgeom.p . 2 𝑃 = (Base‘𝐺)
2 tkgeom.d . 2 = (dist‘𝐺)
3 tkgeom.i . 2 𝐼 = (Itv‘𝐺)
4 tkgeom.g . 2 (𝜑𝐺 ∈ TarskiG)
5 tgbtwnintr.4 . 2 (𝜑𝐷𝑃)
6 tgbtwnintr.2 . 2 (𝜑𝐵𝑃)
7 tgbtwnintr.1 . 2 (𝜑𝐴𝑃)
8 tgbtwnintr.3 . . 3 (𝜑𝐶𝑃)
9 tgbtwnexch.2 . . . 4 (𝜑𝐶 ∈ (𝐴𝐼𝐷))
101, 2, 3, 4, 7, 8, 5, 9tgbtwncom 25603 . . 3 (𝜑𝐶 ∈ (𝐷𝐼𝐴))
11 tgbtwnexch.1 . . . 4 (𝜑𝐵 ∈ (𝐴𝐼𝐶))
121, 2, 3, 4, 7, 6, 8, 11tgbtwncom 25603 . . 3 (𝜑𝐵 ∈ (𝐶𝐼𝐴))
131, 2, 3, 4, 5, 8, 6, 7, 10, 12tgbtwnexch2 25611 . 2 (𝜑𝐵 ∈ (𝐷𝐼𝐴))
141, 2, 3, 4, 5, 6, 7, 13tgbtwncom 25603 1 (𝜑𝐵 ∈ (𝐴𝐼𝐷))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   = wceq 1630   ∈ wcel 2144  ‘cfv 6031  (class class class)co 6792  Basecbs 16063  distcds 16157  TarskiGcstrkg 25549  Itvcitv 25555 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1869  ax-4 1884  ax-5 1990  ax-6 2056  ax-7 2092  ax-9 2153  ax-10 2173  ax-11 2189  ax-12 2202  ax-13 2407  ax-ext 2750  ax-nul 4920 This theorem depends on definitions:  df-bi 197  df-an 383  df-or 827  df-3an 1072  df-tru 1633  df-ex 1852  df-nf 1857  df-sb 2049  df-eu 2621  df-clab 2757  df-cleq 2763  df-clel 2766  df-nfc 2901  df-ne 2943  df-ral 3065  df-rex 3066  df-rab 3069  df-v 3351  df-sbc 3586  df-dif 3724  df-un 3726  df-in 3728  df-ss 3735  df-nul 4062  df-if 4224  df-pw 4297  df-sn 4315  df-pr 4317  df-op 4321  df-uni 4573  df-br 4785  df-iota 5994  df-fv 6039  df-ov 6795  df-trkgc 25567  df-trkgb 25568  df-trkgcb 25569  df-trkg 25572 This theorem is referenced by:  tgcgrxfr  25633  tgbtwnconn1lem1  25687  tgbtwnconn1lem3  25689  legtrd  25704  hltr  25725  hlbtwn  25726  tglineeltr  25746  miriso  25785  outpasch  25867
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