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Theorem ismir 25599
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)
ismir.1 (𝜑𝐶𝑃)
ismir.2 (𝜑 → (𝐴 𝐶) = (𝐴 𝐵))
ismir.3 (𝜑𝐴 ∈ (𝐶𝐼𝐵))
Assertion
Ref Expression
ismir (𝜑𝐶 = (𝑀𝐵))

Proof of Theorem ismir
Dummy variable 𝑧 is distinct from all other variables.
StepHypRef Expression
1 mirval.p . . 3 𝑃 = (Base‘𝐺)
2 mirval.d . . 3 = (dist‘𝐺)
3 mirval.i . . 3 𝐼 = (Itv‘𝐺)
4 mirval.l . . 3 𝐿 = (LineG‘𝐺)
5 mirval.s . . 3 𝑆 = (pInvG‘𝐺)
6 mirval.g . . 3 (𝜑𝐺 ∈ TarskiG)
7 mirval.a . . 3 (𝜑𝐴𝑃)
8 mirfv.m . . 3 𝑀 = (𝑆𝐴)
9 mirfv.b . . 3 (𝜑𝐵𝑃)
101, 2, 3, 4, 5, 6, 7, 8, 9mirfv 25596 . 2 (𝜑 → (𝑀𝐵) = (𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))))
11 ismir.2 . . 3 (𝜑 → (𝐴 𝐶) = (𝐴 𝐵))
12 ismir.3 . . 3 (𝜑𝐴 ∈ (𝐶𝐼𝐵))
13 ismir.1 . . . 4 (𝜑𝐶𝑃)
141, 2, 3, 6, 9, 7mirreu3 25594 . . . 4 (𝜑 → ∃!𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵)))
15 oveq2 6698 . . . . . . 7 (𝑧 = 𝐶 → (𝐴 𝑧) = (𝐴 𝐶))
1615eqeq1d 2653 . . . . . 6 (𝑧 = 𝐶 → ((𝐴 𝑧) = (𝐴 𝐵) ↔ (𝐴 𝐶) = (𝐴 𝐵)))
17 oveq1 6697 . . . . . . 7 (𝑧 = 𝐶 → (𝑧𝐼𝐵) = (𝐶𝐼𝐵))
1817eleq2d 2716 . . . . . 6 (𝑧 = 𝐶 → (𝐴 ∈ (𝑧𝐼𝐵) ↔ 𝐴 ∈ (𝐶𝐼𝐵)))
1916, 18anbi12d 747 . . . . 5 (𝑧 = 𝐶 → (((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵)) ↔ ((𝐴 𝐶) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝐶𝐼𝐵))))
2019riota2 6673 . . . 4 ((𝐶𝑃 ∧ ∃!𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))) → (((𝐴 𝐶) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝐶𝐼𝐵)) ↔ (𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))) = 𝐶))
2113, 14, 20syl2anc 694 . . 3 (𝜑 → (((𝐴 𝐶) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝐶𝐼𝐵)) ↔ (𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))) = 𝐶))
2211, 12, 21mpbi2and 976 . 2 (𝜑 → (𝑧𝑃 ((𝐴 𝑧) = (𝐴 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))) = 𝐶)
2310, 22eqtr2d 2686 1 (𝜑𝐶 = (𝑀𝐵))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 383   = wceq 1523  wcel 2030  ∃!wreu 2943  cfv 5926  crio 6650  (class class class)co 6690  Basecbs 15904  distcds 15997  TarskiGcstrkg 25374  Itvcitv 25380  LineGclng 25381  pInvGcmir 25592
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-rep 4804  ax-sep 4814  ax-nul 4822  ax-pr 4936
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3an 1056  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-ral 2946  df-rex 2947  df-reu 2948  df-rmo 2949  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-op 4217  df-uni 4469  df-iun 4554  df-br 4686  df-opab 4746  df-mpt 4763  df-id 5053  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-riota 6651  df-ov 6693  df-trkgc 25392  df-trkgb 25393  df-trkgcb 25394  df-trkg 25397  df-mir 25593
This theorem is referenced by:  mirmir  25602  mireq  25605  mirinv  25606  miriso  25610  mirmir2  25614  mirauto  25624  colmid  25628  krippenlem  25630  midexlem  25632  mideulem2  25671  opphllem  25672  midcom  25719  trgcopyeulem  25742
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