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Theorem mircgr 26449
Description: Property of the image by the point inversion function. Definition 7.5 of [Schwabhauser] p. 49. (Contributed by Thierry Arnoux, 3-Jun-2019.)
Hypotheses
Ref Expression
mirval.p 𝑃 = (Base‘𝐺)
mirval.d = (dist‘𝐺)
mirval.i 𝐼 = (Itv‘𝐺)
mirval.l 𝐿 = (LineG‘𝐺)
mirval.s 𝑆 = (pInvG‘𝐺)
mirval.g (𝜑𝐺 ∈ TarskiG)
mirval.a (𝜑𝐴𝑃)
mirfv.m 𝑀 = (𝑆𝐴)
mirfv.b (𝜑𝐵𝑃)
Assertion
Ref Expression
mircgr (𝜑 → (𝐴 (𝑀𝐵)) = (𝐴 𝐵))

Proof of Theorem mircgr
Dummy variable 𝑧 is distinct from all other variables.
StepHypRef Expression
1 mirval.p . . . . 5 𝑃 = (Base‘𝐺)
2 mirval.d . . . . 5 = (dist‘𝐺)
3 mirval.i . . . . 5 𝐼 = (Itv‘𝐺)
4 mirval.l . . . . 5 𝐿 = (LineG‘𝐺)
5 mirval.s . . . . 5 𝑆 = (pInvG‘𝐺)
6 mirval.g . . . . 5 (𝜑𝐺 ∈ TarskiG)
7 mirval.a . . . . 5 (𝜑𝐴𝑃)
8 mirfv.m . . . . 5 𝑀 = (𝑆𝐴)
9 mirfv.b . . . . 5 (𝜑𝐵𝑃)
101, 2, 3, 4, 5, 6, 7, 8, 9mirfv 26448 . . . 4 (𝜑 → (𝑀𝐵) = (𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))))
111, 2, 3, 6, 9, 7mirreu3 26446 . . . . 5 (𝜑 → ∃!𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵)))
12 riotacl2 7120 . . . . 5 (∃!𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵)) → (𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))) ∈ {𝑧𝑃 ∣ ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))})
1311, 12syl 17 . . . 4 (𝜑 → (𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))) ∈ {𝑧𝑃 ∣ ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))})
1410, 13eqeltrd 2916 . . 3 (𝜑 → (𝑀𝐵) ∈ {𝑧𝑃 ∣ ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))})
15 oveq2 7154 . . . . . 6 (𝑧 = (𝑀𝐵) → (𝐴 𝑧) = (𝐴 (𝑀𝐵)))
1615eqeq1d 2826 . . . . 5 (𝑧 = (𝑀𝐵) → ((𝐴 𝑧) = (𝐴 𝐵) ↔ (𝐴 (𝑀𝐵)) = (𝐴 𝐵)))
17 oveq1 7153 . . . . . 6 (𝑧 = (𝑀𝐵) → (𝑧𝐼𝐵) = ((𝑀𝐵)𝐼𝐵))
1817eleq2d 2901 . . . . 5 (𝑧 = (𝑀𝐵) → (𝐴 ∈ (𝑧𝐼𝐵) ↔ 𝐴 ∈ ((𝑀𝐵)𝐼𝐵)))
1916, 18anbi12d 633 . . . 4 (𝑧 = (𝑀𝐵) → (((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵)) ↔ ((𝐴 (𝑀𝐵)) = (𝐴 𝐵) ∧ 𝐴 ∈ ((𝑀𝐵)𝐼𝐵))))
2019elrab 3666 . . 3 ((𝑀𝐵) ∈ {𝑧𝑃 ∣ ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))} ↔ ((𝑀𝐵) ∈ 𝑃 ∧ ((𝐴 (𝑀𝐵)) = (𝐴 𝐵) ∧ 𝐴 ∈ ((𝑀𝐵)𝐼𝐵))))
2114, 20sylib 221 . 2 (𝜑 → ((𝑀𝐵) ∈ 𝑃 ∧ ((𝐴 (𝑀𝐵)) = (𝐴 𝐵) ∧ 𝐴 ∈ ((𝑀𝐵)𝐼𝐵))))
2221simprld 771 1 (𝜑 → (𝐴 (𝑀𝐵)) = (𝐴 𝐵))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 399   = wceq 1538  wcel 2115  ∃!wreu 3135  {crab 3137  cfv 6344  crio 7103  (class class class)co 7146  Basecbs 16481  distcds 16572  TarskiGcstrkg 26222  Itvcitv 26228  LineGclng 26229  pInvGcmir 26444
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 1971  ax-7 2016  ax-8 2117  ax-9 2125  ax-10 2146  ax-11 2162  ax-12 2179  ax-ext 2796  ax-rep 5177  ax-sep 5190  ax-nul 5197  ax-pr 5318
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2071  df-mo 2624  df-eu 2655  df-clab 2803  df-cleq 2817  df-clel 2896  df-nfc 2964  df-ne 3015  df-ral 3138  df-rex 3139  df-reu 3140  df-rmo 3141  df-rab 3142  df-v 3482  df-sbc 3759  df-csb 3867  df-dif 3922  df-un 3924  df-in 3926  df-ss 3936  df-nul 4277  df-if 4451  df-pw 4524  df-sn 4551  df-pr 4553  df-op 4557  df-uni 4826  df-iun 4908  df-br 5054  df-opab 5116  df-mpt 5134  df-id 5448  df-xp 5549  df-rel 5550  df-cnv 5551  df-co 5552  df-dm 5553  df-rn 5554  df-res 5555  df-ima 5556  df-iota 6303  df-fun 6346  df-fn 6347  df-f 6348  df-f1 6349  df-fo 6350  df-f1o 6351  df-fv 6352  df-riota 7104  df-ov 7149  df-trkgc 26240  df-trkgb 26241  df-trkgcb 26242  df-trkg 26245  df-mir 26445
This theorem is referenced by:  mirmir  26454  miriso  26462  mirmir2  26466  mircgrextend  26474  mirtrcgr  26475  mirauto  26476  miduniq  26477  krippenlem  26482  ragcol  26491  ragflat  26496  ragcgr  26499  footexALT  26510  footexlem2  26512  colperpexlem1  26522  colperpexlem3  26524  mideulem2  26526  opphllem  26527  midcgr  26572  lmiisolem  26588
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