Theorem mirne 28944

Description: Mirror of non-center point cannot be the center point. (Contributed by Thierry Arnoux, 27-Sep-2020.)

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)
mirinv.b	⊢ (𝜑 → 𝐵 ∈ 𝑃)
mirne.1	⊢ (𝜑 → 𝐵 ≠ 𝐴)

Assertion

Ref	Expression
mirne	⊢ (𝜑 → (𝑀‘𝐵) ≠ 𝐴)

Proof of Theorem mirne

Step	Hyp	Ref	Expression
1		simpr 489	. . . . 5 ⊢ ((𝜑 ∧ (𝑀‘𝐵) = 𝐴) → (𝑀‘𝐵) = 𝐴)
2	1	fveq2d 6885	. . . 4 ⊢ ((𝜑 ∧ (𝑀‘𝐵) = 𝐴) → (𝑀‘(𝑀‘𝐵)) = (𝑀‘𝐴))
3		mirval.p	. . . . . 6 ⊢ 𝑃 = (Base‘𝐺)
4		mirval.d	. . . . . 6 ⊢ − = (dist‘𝐺)
5		mirval.i	. . . . . 6 ⊢ 𝐼 = (Itv‘𝐺)
6		mirval.l	. . . . . 6 ⊢ 𝐿 = (LineG‘𝐺)
7		mirval.s	. . . . . 6 ⊢ 𝑆 = (pInvG‘𝐺)
8		mirval.g	. . . . . 6 ⊢ (𝜑 → 𝐺 ∈ TarskiG)
9		mirval.a	. . . . . 6 ⊢ (𝜑 → 𝐴 ∈ 𝑃)
10		mirfv.m	. . . . . 6 ⊢ 𝑀 = (𝑆‘𝐴)
11		mirinv.b	. . . . . 6 ⊢ (𝜑 → 𝐵 ∈ 𝑃)
12	3, 4, 5, 6, 7, 8, 9, 10, 11	mirmir 28939	. . . . 5 ⊢ (𝜑 → (𝑀‘(𝑀‘𝐵)) = 𝐵)
13	12	adantr 485	. . . 4 ⊢ ((𝜑 ∧ (𝑀‘𝐵) = 𝐴) → (𝑀‘(𝑀‘𝐵)) = 𝐵)
14		eqid 2763	. . . . . 6 ⊢ 𝐴 = 𝐴
15	3, 4, 5, 6, 7, 8, 9, 10, 9	mirinv 28943	. . . . . 6 ⊢ (𝜑 → ((𝑀‘𝐴) = 𝐴 ↔ 𝐴 = 𝐴))
16	14, 15	mpbiri 261	. . . . 5 ⊢ (𝜑 → (𝑀‘𝐴) = 𝐴)
17	16	adantr 485	. . . 4 ⊢ ((𝜑 ∧ (𝑀‘𝐵) = 𝐴) → (𝑀‘𝐴) = 𝐴)
18	2, 13, 17	3eqtr3d 2806	. . 3 ⊢ ((𝜑 ∧ (𝑀‘𝐵) = 𝐴) → 𝐵 = 𝐴)
19		mirne.1	. . . . 5 ⊢ (𝜑 → 𝐵 ≠ 𝐴)
20	19	adantr 485	. . . 4 ⊢ ((𝜑 ∧ (𝑀‘𝐵) = 𝐴) → 𝐵 ≠ 𝐴)
21	20	neneqd 2963	. . 3 ⊢ ((𝜑 ∧ (𝑀‘𝐵) = 𝐴) → ¬ 𝐵 = 𝐴)
22	18, 21	pm2.65da 828	. 2 ⊢ (𝜑 → ¬ (𝑀‘𝐵) = 𝐴)
23	22	neqned 2965	1 ⊢ (𝜑 → (𝑀‘𝐵) ≠ 𝐴)

Syntax hints:   → wi 4   ∧ wa 400   = wceq 1570   ∈ wcel 2143   ≠ wne 2958  ‘cfv 6536  Basecbs 17264  distcds 17314  TarskiGcstrkg 28696  Itvcitv 28702  LineGclng 28703  pInvGcmir 28929

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-rep 5238  ax-sep 5257  ax-nul 5269  ax-pr 5404

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ne 2959  df-ral 3080  df-rex 3090  df-rmo 3369  df-reu 3370  df-rab 3417  df-v 3457  df-sbc 3745  df-csb 3854  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4488  df-pw 4564  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-iun 4958  df-br 5110  df-opab 5174  df-mpt 5193  df-id 5556  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-rn 5672  df-res 5673  df-ima 5674  df-iota 6492  df-fun 6538  df-fn 6539  df-f 6540  df-f1 6541  df-fo 6542  df-f1o 6543  df-fv 6544  df-riota 7367  df-ov 7413  df-trkgc 28717  df-trkgb 28718  df-trkgcb 28719  df-trkg 28722  df-mir 28930

This theorem is referenced by:  mirhl2  28958  sacgr  29142  perpeq  29151  prlngmid2  29211