Theorem mircgr 25908

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	⊢ (𝜑 → 𝐺 ∈ TarskiG)
mirval.a	⊢ (𝜑 → 𝐴 ∈ 𝑃)
mirfv.m	⊢ 𝑀 = (𝑆‘𝐴)
mirfv.b	⊢ (𝜑 → 𝐵 ∈ 𝑃)

Assertion

Ref	Expression
mircgr	⊢ (𝜑 → (𝐴 − (𝑀‘𝐵)) = (𝐴 − 𝐵))

Proof of Theorem mircgr

Dummy variable 𝑧 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		mirval.p	. . . . . 6 ⊢ 𝑃 = (Base‘𝐺)
2		mirval.d	. . . . . 6 ⊢ − = (dist‘𝐺)
3		mirval.i	. . . . . 6 ⊢ 𝐼 = (Itv‘𝐺)
4		mirval.l	. . . . . 6 ⊢ 𝐿 = (LineG‘𝐺)
5		mirval.s	. . . . . 6 ⊢ 𝑆 = (pInvG‘𝐺)
6		mirval.g	. . . . . 6 ⊢ (𝜑 → 𝐺 ∈ TarskiG)
7		mirval.a	. . . . . 6 ⊢ (𝜑 → 𝐴 ∈ 𝑃)
8		mirfv.m	. . . . . 6 ⊢ 𝑀 = (𝑆‘𝐴)
9		mirfv.b	. . . . . 6 ⊢ (𝜑 → 𝐵 ∈ 𝑃)
10	1, 2, 3, 4, 5, 6, 7, 8, 9	mirfv 25907	. . . . 5 ⊢ (𝜑 → (𝑀‘𝐵) = (℩𝑧 ∈ 𝑃 ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))))
11	1, 2, 3, 6, 9, 7	mirreu3 25905	. . . . . 6 ⊢ (𝜑 → ∃!𝑧 ∈ 𝑃 ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵)))
12		riotacl2 6852	. . . . . 6 ⊢ (∃!𝑧 ∈ 𝑃 ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵)) → (℩𝑧 ∈ 𝑃 ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))) ∈ {𝑧 ∈ 𝑃 ∣ ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))})
13	11, 12	syl 17	. . . . 5 ⊢ (𝜑 → (℩𝑧 ∈ 𝑃 ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))) ∈ {𝑧 ∈ 𝑃 ∣ ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))})
14	10, 13	eqeltrd 2878	. . . 4 ⊢ (𝜑 → (𝑀‘𝐵) ∈ {𝑧 ∈ 𝑃 ∣ ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))})
15		oveq2 6886	. . . . . . 7 ⊢ (𝑧 = (𝑀‘𝐵) → (𝐴 − 𝑧) = (𝐴 − (𝑀‘𝐵)))
16	15	eqeq1d 2801	. . . . . 6 ⊢ (𝑧 = (𝑀‘𝐵) → ((𝐴 − 𝑧) = (𝐴 − 𝐵) ↔ (𝐴 − (𝑀‘𝐵)) = (𝐴 − 𝐵)))
17		oveq1 6885	. . . . . . 7 ⊢ (𝑧 = (𝑀‘𝐵) → (𝑧𝐼𝐵) = ((𝑀‘𝐵)𝐼𝐵))
18	17	eleq2d 2864	. . . . . 6 ⊢ (𝑧 = (𝑀‘𝐵) → (𝐴 ∈ (𝑧𝐼𝐵) ↔ 𝐴 ∈ ((𝑀‘𝐵)𝐼𝐵)))
19	16, 18	anbi12d 625	. . . . 5 ⊢ (𝑧 = (𝑀‘𝐵) → (((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵)) ↔ ((𝐴 − (𝑀‘𝐵)) = (𝐴 − 𝐵) ∧ 𝐴 ∈ ((𝑀‘𝐵)𝐼𝐵))))
20	19	elrab 3556	. . . 4 ⊢ ((𝑀‘𝐵) ∈ {𝑧 ∈ 𝑃 ∣ ((𝐴 − 𝑧) = (𝐴 − 𝐵) ∧ 𝐴 ∈ (𝑧𝐼𝐵))} ↔ ((𝑀‘𝐵) ∈ 𝑃 ∧ ((𝐴 − (𝑀‘𝐵)) = (𝐴 − 𝐵) ∧ 𝐴 ∈ ((𝑀‘𝐵)𝐼𝐵))))
21	14, 20	sylib 210	. . 3 ⊢ (𝜑 → ((𝑀‘𝐵) ∈ 𝑃 ∧ ((𝐴 − (𝑀‘𝐵)) = (𝐴 − 𝐵) ∧ 𝐴 ∈ ((𝑀‘𝐵)𝐼𝐵))))
22	21	simprd 490	. 2 ⊢ (𝜑 → ((𝐴 − (𝑀‘𝐵)) = (𝐴 − 𝐵) ∧ 𝐴 ∈ ((𝑀‘𝐵)𝐼𝐵)))
23	22	simpld 489	1 ⊢ (𝜑 → (𝐴 − (𝑀‘𝐵)) = (𝐴 − 𝐵))

Syntax hints:   → wi 4   ∧ wa 385   = wceq 1653   ∈ wcel 2157  ∃!wreu 3091  {crab 3093  ‘cfv 6101  ℩crio 6838  (class class class)co 6878  Basecbs 16184  distcds 16276  TarskiGcstrkg 25681  Itvcitv 25687  LineGclng 25688  pInvGcmir 25903

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-rep 4964  ax-sep 4975  ax-nul 4983  ax-pr 5097

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-ne 2972  df-ral 3094  df-rex 3095  df-reu 3096  df-rmo 3097  df-rab 3098  df-v 3387  df-sbc 3634  df-csb 3729  df-dif 3772  df-un 3774  df-in 3776  df-ss 3783  df-nul 4116  df-if 4278  df-pw 4351  df-sn 4369  df-pr 4371  df-op 4375  df-uni 4629  df-iun 4712  df-br 4844  df-opab 4906  df-mpt 4923  df-id 5220  df-xp 5318  df-rel 5319  df-cnv 5320  df-co 5321  df-dm 5322  df-rn 5323  df-res 5324  df-ima 5325  df-iota 6064  df-fun 6103  df-fn 6104  df-f 6105  df-f1 6106  df-fo 6107  df-f1o 6108  df-fv 6109  df-riota 6839  df-ov 6881  df-trkgc 25699  df-trkgb 25700  df-trkgcb 25701  df-trkg 25704  df-mir 25904

This theorem is referenced by:  mirmir  25913  miriso  25921  mirmir2  25925  mircgrextend  25933  mirtrcgr  25934  mirauto  25935  miduniq  25936  krippenlem  25941  ragcol  25950  ragflat  25955  ragcgr  25958  footex  25969  colperpexlem1  25978  colperpexlem3  25980  mideulem2  25982  opphllem  25983  midcgr  26028  lmiisolem  26044  sacgr  26078