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Mirrors > Home > MPE Home > Th. List > lmiinv | Structured version Visualization version GIF version |
Description: The invariants of the line mirroring lie on the mirror line. Theorem 10.8 of [Schwabhauser] p. 89. (Contributed by Thierry Arnoux, 11-Dec-2019.) |
Ref | Expression |
---|---|
ismid.p | ⊢ 𝑃 = (Base‘𝐺) |
ismid.d | ⊢ − = (dist‘𝐺) |
ismid.i | ⊢ 𝐼 = (Itv‘𝐺) |
ismid.g | ⊢ (𝜑 → 𝐺 ∈ TarskiG) |
ismid.1 | ⊢ (𝜑 → 𝐺DimTarskiG≥2) |
lmif.m | ⊢ 𝑀 = ((lInvG‘𝐺)‘𝐷) |
lmif.l | ⊢ 𝐿 = (LineG‘𝐺) |
lmif.d | ⊢ (𝜑 → 𝐷 ∈ ran 𝐿) |
lmicl.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑃) |
Ref | Expression |
---|---|
lmiinv | ⊢ (𝜑 → ((𝑀‘𝐴) = 𝐴 ↔ 𝐴 ∈ 𝐷)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ismid.p | . . 3 ⊢ 𝑃 = (Base‘𝐺) | |
2 | ismid.d | . . 3 ⊢ − = (dist‘𝐺) | |
3 | ismid.i | . . 3 ⊢ 𝐼 = (Itv‘𝐺) | |
4 | ismid.g | . . 3 ⊢ (𝜑 → 𝐺 ∈ TarskiG) | |
5 | ismid.1 | . . 3 ⊢ (𝜑 → 𝐺DimTarskiG≥2) | |
6 | lmif.m | . . 3 ⊢ 𝑀 = ((lInvG‘𝐺)‘𝐷) | |
7 | lmif.l | . . 3 ⊢ 𝐿 = (LineG‘𝐺) | |
8 | lmif.d | . . 3 ⊢ (𝜑 → 𝐷 ∈ ran 𝐿) | |
9 | lmicl.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑃) | |
10 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 9 | islmib 26572 | . 2 ⊢ (𝜑 → (𝐴 = (𝑀‘𝐴) ↔ ((𝐴(midG‘𝐺)𝐴) ∈ 𝐷 ∧ (𝐷(⟂G‘𝐺)(𝐴𝐿𝐴) ∨ 𝐴 = 𝐴)))) |
11 | eqcom 2828 | . . 3 ⊢ (𝐴 = (𝑀‘𝐴) ↔ (𝑀‘𝐴) = 𝐴) | |
12 | 11 | a1i 11 | . 2 ⊢ (𝜑 → (𝐴 = (𝑀‘𝐴) ↔ (𝑀‘𝐴) = 𝐴)) |
13 | eqidd 2822 | . . . . 5 ⊢ (𝜑 → 𝐴 = 𝐴) | |
14 | 13 | olcd 870 | . . . 4 ⊢ (𝜑 → (𝐷(⟂G‘𝐺)(𝐴𝐿𝐴) ∨ 𝐴 = 𝐴)) |
15 | 14 | biantrud 534 | . . 3 ⊢ (𝜑 → ((𝐴(midG‘𝐺)𝐴) ∈ 𝐷 ↔ ((𝐴(midG‘𝐺)𝐴) ∈ 𝐷 ∧ (𝐷(⟂G‘𝐺)(𝐴𝐿𝐴) ∨ 𝐴 = 𝐴)))) |
16 | 1, 2, 3, 4, 5, 9, 9 | midid 26566 | . . . 4 ⊢ (𝜑 → (𝐴(midG‘𝐺)𝐴) = 𝐴) |
17 | 16 | eleq1d 2897 | . . 3 ⊢ (𝜑 → ((𝐴(midG‘𝐺)𝐴) ∈ 𝐷 ↔ 𝐴 ∈ 𝐷)) |
18 | 15, 17 | bitr3d 283 | . 2 ⊢ (𝜑 → (((𝐴(midG‘𝐺)𝐴) ∈ 𝐷 ∧ (𝐷(⟂G‘𝐺)(𝐴𝐿𝐴) ∨ 𝐴 = 𝐴)) ↔ 𝐴 ∈ 𝐷)) |
19 | 10, 12, 18 | 3bitr3d 311 | 1 ⊢ (𝜑 → ((𝑀‘𝐴) = 𝐴 ↔ 𝐴 ∈ 𝐷)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 ∨ wo 843 = wceq 1533 ∈ wcel 2110 class class class wbr 5065 ran crn 5555 ‘cfv 6354 (class class class)co 7155 2c2 11691 Basecbs 16482 distcds 16573 TarskiGcstrkg 26215 DimTarskiG≥cstrkgld 26219 Itvcitv 26221 LineGclng 26222 ⟂Gcperpg 26480 midGcmid 26557 lInvGclmi 26558 |
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 2157 ax-12 2173 ax-ext 2793 ax-rep 5189 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 ax-cnex 10592 ax-resscn 10593 ax-1cn 10594 ax-icn 10595 ax-addcl 10596 ax-addrcl 10597 ax-mulcl 10598 ax-mulrcl 10599 ax-mulcom 10600 ax-addass 10601 ax-mulass 10602 ax-distr 10603 ax-i2m1 10604 ax-1ne0 10605 ax-1rid 10606 ax-rnegex 10607 ax-rrecex 10608 ax-cnre 10609 ax-pre-lttri 10610 ax-pre-lttrn 10611 ax-pre-ltadd 10612 ax-pre-mulgt0 10613 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 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-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-pss 3953 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4838 df-int 4876 df-iun 4920 df-br 5066 df-opab 5128 df-mpt 5146 df-tr 5172 df-id 5459 df-eprel 5464 df-po 5473 df-so 5474 df-fr 5513 df-we 5515 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-ima 5567 df-pred 6147 df-ord 6193 df-on 6194 df-lim 6195 df-suc 6196 df-iota 6313 df-fun 6356 df-fn 6357 df-f 6358 df-f1 6359 df-fo 6360 df-f1o 6361 df-fv 6362 df-riota 7113 df-ov 7158 df-oprab 7159 df-mpo 7160 df-om 7580 df-1st 7688 df-2nd 7689 df-wrecs 7946 df-recs 8007 df-rdg 8045 df-1o 8101 df-oadd 8105 df-er 8288 df-map 8407 df-pm 8408 df-en 8509 df-dom 8510 df-sdom 8511 df-fin 8512 df-dju 9329 df-card 9367 df-pnf 10676 df-mnf 10677 df-xr 10678 df-ltxr 10679 df-le 10680 df-sub 10871 df-neg 10872 df-nn 11638 df-2 11699 df-3 11700 df-n0 11897 df-xnn0 11967 df-z 11981 df-uz 12243 df-fz 12892 df-fzo 13033 df-hash 13690 df-word 13861 df-concat 13922 df-s1 13949 df-s2 14209 df-s3 14210 df-trkgc 26233 df-trkgb 26234 df-trkgcb 26235 df-trkgld 26237 df-trkg 26238 df-cgrg 26296 df-leg 26368 df-mir 26438 df-rag 26479 df-perpg 26481 df-mid 26559 df-lmi 26560 |
This theorem is referenced by: lmicinv 26578 lmiisolem 26581 lmiopp 26587 |
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