Theorem tgcgrcomlr 28564

Description: Congruence commutes on both sides. (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	⊢ (𝜑 → 𝐺 ∈ TarskiG)
tgcgrcomlr.a	⊢ (𝜑 → 𝐴 ∈ 𝑃)
tgcgrcomlr.b	⊢ (𝜑 → 𝐵 ∈ 𝑃)
tgcgrcomlr.c	⊢ (𝜑 → 𝐶 ∈ 𝑃)
tgcgrcomlr.d	⊢ (𝜑 → 𝐷 ∈ 𝑃)
tgcgrcomlr.6	⊢ (𝜑 → (𝐴 − 𝐵) = (𝐶 − 𝐷))

Assertion

Ref	Expression
tgcgrcomlr	⊢ (𝜑 → (𝐵 − 𝐴) = (𝐷 − 𝐶))

Proof of Theorem tgcgrcomlr

Step	Hyp	Ref	Expression
1		tgcgrcomlr.6	. 2 ⊢ (𝜑 → (𝐴 − 𝐵) = (𝐶 − 𝐷))
2		tkgeom.p	. . 3 ⊢ 𝑃 = (Base‘𝐺)
3		tkgeom.d	. . 3 ⊢ − = (dist‘𝐺)
4		tkgeom.i	. . 3 ⊢ 𝐼 = (Itv‘𝐺)
5		tkgeom.g	. . 3 ⊢ (𝜑 → 𝐺 ∈ TarskiG)
6		tgcgrcomlr.a	. . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑃)
7		tgcgrcomlr.b	. . 3 ⊢ (𝜑 → 𝐵 ∈ 𝑃)
8	2, 3, 4, 5, 6, 7	axtgcgrrflx 28546	. 2 ⊢ (𝜑 → (𝐴 − 𝐵) = (𝐵 − 𝐴))
9		tgcgrcomlr.c	. . 3 ⊢ (𝜑 → 𝐶 ∈ 𝑃)
10		tgcgrcomlr.d	. . 3 ⊢ (𝜑 → 𝐷 ∈ 𝑃)
11	2, 3, 4, 5, 9, 10	axtgcgrrflx 28546	. 2 ⊢ (𝜑 → (𝐶 − 𝐷) = (𝐷 − 𝐶))
12	1, 8, 11	3eqtr3d 2780	1 ⊢ (𝜑 → (𝐵 − 𝐴) = (𝐷 − 𝐶))

Syntax hints:   → wi 4   = wceq 1542   ∈ wcel 2114  ‘cfv 6500  (class class class)co 7368  Basecbs 17148  distcds 17198  TarskiGcstrkg 28511  Itvcitv 28517

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-ext 2709  ax-nul 5253

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2716  df-cleq 2729  df-clel 2812  df-ne 2934  df-ral 3053  df-rab 3402  df-v 3444  df-sbc 3743  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-nul 4288  df-if 4482  df-sn 4583  df-pr 4585  df-op 4589  df-uni 4866  df-br 5101  df-iota 6456  df-fv 6508  df-ov 7371  df-trkgc 28532  df-trkg 28537

This theorem is referenced by:  tgcgrextend  28569  tgifscgr  28592  tgcgrsub  28593  iscgrglt  28598  trgcgrg  28599  tgcgrxfr  28602  cgr3swap12  28607  cgr3swap23  28608  tgbtwnxfr  28614  lnext  28651  tgbtwnconn1lem1  28656  tgbtwnconn1lem2  28657  tgbtwnconn1lem3  28658  tgbtwnconn1  28659  legov2  28670  legtri3  28674  legbtwn  28678  tgcgrsub2  28679  miriso  28754  mircgrextend  28766  mirtrcgr  28767  miduniq  28769  colmid  28772  symquadlem  28773  krippenlem  28774  midexlem  28776  ragcom  28782  ragflat  28788  ragcgr  28791  footexALT  28802  footexlem1  28803  footexlem2  28804  colperpexlem1  28814  mideulem2  28818  opphllem  28819  opphllem3  28833  lmiisolem  28880  hypcgrlem1  28883  trgcopy  28888  trgcopyeulem  28889  iscgra1  28894  cgracgr  28902  cgraswap  28904  cgrcgra  28905  cgracom  28906  cgratr  28907  flatcgra  28908  dfcgra2  28914  acopy  28917  acopyeu  28918  cgrg3col4  28937  tgsas1  28938  tgsas3  28941  tgasa1  28942