Theorem mircinv 26448

Description: The center point is invariant of a point inversion. (Contributed by Thierry Arnoux, 25-Aug-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)

Assertion

Ref	Expression
mircinv	⊢ (𝜑 → (𝑀‘𝐴) = 𝐴)

Proof of Theorem mircinv

Step	Hyp	Ref	Expression
1		eqid 2821	. 2 ⊢ 𝐴 = 𝐴
2		mirval.p	. . 3 ⊢ 𝑃 = (Base‘𝐺)
3		mirval.d	. . 3 ⊢ − = (dist‘𝐺)
4		mirval.i	. . 3 ⊢ 𝐼 = (Itv‘𝐺)
5		mirval.l	. . 3 ⊢ 𝐿 = (LineG‘𝐺)
6		mirval.s	. . 3 ⊢ 𝑆 = (pInvG‘𝐺)
7		mirval.g	. . 3 ⊢ (𝜑 → 𝐺 ∈ TarskiG)
8		mirval.a	. . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑃)
9		mirfv.m	. . 3 ⊢ 𝑀 = (𝑆‘𝐴)
10	2, 3, 4, 5, 6, 7, 8, 9, 8	mirinv 26446	. 2 ⊢ (𝜑 → ((𝑀‘𝐴) = 𝐴 ↔ 𝐴 = 𝐴))
11	1, 10	mpbiri 260	1 ⊢ (𝜑 → (𝑀‘𝐴) = 𝐴)

Syntax hints:   → wi 4   = wceq 1533   ∈ wcel 2110  ‘cfv 6350  Basecbs 16477  distcds 16568  TarskiGcstrkg 26210  Itvcitv 26216  LineGclng 26217  pInvGcmir 26432

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2156  ax-12 2172  ax-ext 2793  ax-rep 5183  ax-sep 5196  ax-nul 5203  ax-pr 5322

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rmo 3146  df-rab 3147  df-v 3497  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4833  df-iun 4914  df-br 5060  df-opab 5122  df-mpt 5140  df-id 5455  df-xp 5556  df-rel 5557  df-cnv 5558  df-co 5559  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-iota 6309  df-fun 6352  df-fn 6353  df-f 6354  df-f1 6355  df-fo 6356  df-f1o 6357  df-fv 6358  df-riota 7108  df-ov 7153  df-trkgc 26228  df-trkgb 26229  df-trkgcb 26230  df-trkg 26233  df-mir 26433

This theorem is referenced by:  mirln  26456  mirconn  26458  mirbtwnhl  26460  midexlem  26472  ragtrivb  26482  colperpexlem1  26510  colperpexlem3  26512  midex  26517  lmieu  26564