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| Mirrors > Home > MPE Home > Th. List > oacgr | Structured version Visualization version GIF version | ||
| Description: Vertical angle theorem. Vertical, or opposite angles are the facing pair of angles formed when two lines intersect. Eudemus of Rhodes attributed the proof to Thales of Miletus. The proposition showed that since both of a pair of vertical angles are supplementary to both of the adjacent angles, the vertical angles are equal in measure. We follow the same path. Theorem 11.14 of [Schwabhauser] p. 98. (Contributed by Thierry Arnoux, 27-Sep-2020.) |
| Ref | Expression |
|---|---|
| dfcgra2.p | ⊢ 𝑃 = (Base‘𝐺) |
| dfcgra2.i | ⊢ 𝐼 = (Itv‘𝐺) |
| dfcgra2.m | ⊢ − = (dist‘𝐺) |
| dfcgra2.g | ⊢ (𝜑 → 𝐺 ∈ TarskiG) |
| dfcgra2.a | ⊢ (𝜑 → 𝐴 ∈ 𝑃) |
| dfcgra2.b | ⊢ (𝜑 → 𝐵 ∈ 𝑃) |
| dfcgra2.c | ⊢ (𝜑 → 𝐶 ∈ 𝑃) |
| dfcgra2.d | ⊢ (𝜑 → 𝐷 ∈ 𝑃) |
| dfcgra2.e | ⊢ (𝜑 → 𝐸 ∈ 𝑃) |
| dfcgra2.f | ⊢ (𝜑 → 𝐹 ∈ 𝑃) |
| oacgr.1 | ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐷)) |
| oacgr.2 | ⊢ (𝜑 → 𝐵 ∈ (𝐶𝐼𝐹)) |
| oacgr.3 | ⊢ (𝜑 → 𝐵 ≠ 𝐴) |
| oacgr.4 | ⊢ (𝜑 → 𝐵 ≠ 𝐶) |
| oacgr.5 | ⊢ (𝜑 → 𝐵 ≠ 𝐷) |
| oacgr.6 | ⊢ (𝜑 → 𝐵 ≠ 𝐹) |
| Ref | Expression |
|---|---|
| oacgr | ⊢ (𝜑 → 〈“𝐴𝐵𝐶”〉(cgrA‘𝐺)〈“𝐷𝐵𝐹”〉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dfcgra2.p | . 2 ⊢ 𝑃 = (Base‘𝐺) | |
| 2 | dfcgra2.i | . 2 ⊢ 𝐼 = (Itv‘𝐺) | |
| 3 | dfcgra2.g | . 2 ⊢ (𝜑 → 𝐺 ∈ TarskiG) | |
| 4 | eqid 2760 | . 2 ⊢ (hlG‘𝐺) = (hlG‘𝐺) | |
| 5 | dfcgra2.a | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝑃) | |
| 6 | dfcgra2.b | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝑃) | |
| 7 | dfcgra2.c | . 2 ⊢ (𝜑 → 𝐶 ∈ 𝑃) | |
| 8 | oacgr.3 | . . . 4 ⊢ (𝜑 → 𝐵 ≠ 𝐴) | |
| 9 | 8 | necomd 3010 | . . 3 ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| 10 | oacgr.4 | . . 3 ⊢ (𝜑 → 𝐵 ≠ 𝐶) | |
| 11 | 1, 2, 3, 4, 5, 6, 7, 9, 10 | cgraswap 29334 | . 2 ⊢ (𝜑 → 〈“𝐴𝐵𝐶”〉(cgrA‘𝐺)〈“𝐶𝐵𝐴”〉) |
| 12 | dfcgra2.d | . 2 ⊢ (𝜑 → 𝐷 ∈ 𝑃) | |
| 13 | dfcgra2.f | . 2 ⊢ (𝜑 → 𝐹 ∈ 𝑃) | |
| 14 | dfcgra2.m | . . 3 ⊢ − = (dist‘𝐺) | |
| 15 | oacgr.6 | . . . . 5 ⊢ (𝜑 → 𝐵 ≠ 𝐹) | |
| 16 | 15 | necomd 3010 | . . . 4 ⊢ (𝜑 → 𝐹 ≠ 𝐵) |
| 17 | 1, 2, 3, 4, 13, 6, 5, 16, 8 | cgraswap 29334 | . . 3 ⊢ (𝜑 → 〈“𝐹𝐵𝐴”〉(cgrA‘𝐺)〈“𝐴𝐵𝐹”〉) |
| 18 | oacgr.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ (𝐶𝐼𝐹)) | |
| 19 | 1, 14, 2, 3, 7, 6, 13, 18 | tgbtwncom 28958 | . . 3 ⊢ (𝜑 → 𝐵 ∈ (𝐹𝐼𝐶)) |
| 20 | oacgr.1 | . . 3 ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐷)) | |
| 21 | oacgr.5 | . . 3 ⊢ (𝜑 → 𝐵 ≠ 𝐷) | |
| 22 | 1, 2, 14, 3, 13, 6, 5, 5, 6, 13, 7, 12, 17, 19, 20, 10, 21 | sacgr 29346 | . 2 ⊢ (𝜑 → 〈“𝐶𝐵𝐴”〉(cgrA‘𝐺)〈“𝐷𝐵𝐹”〉) |
| 23 | 1, 2, 3, 4, 5, 6, 7, 7, 6, 5, 11, 12, 6, 13, 22 | cgratr 29337 | 1 ⊢ (𝜑 → 〈“𝐴𝐵𝐶”〉(cgrA‘𝐺)〈“𝐷𝐵𝐹”〉) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 ≠ wne 2955 class class class wbr 5102 ‘cfv 6541 (class class class)co 7422 〈“cs3 14999 Basecbs 17394 distcds 17444 TarskiGcstrkg 28896 Itvcitv 28902 hlGchlg 29070 cgrAccgra 29321 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7753 ax-cnex 11261 ax-resscn 11262 ax-1cn 11263 ax-icn 11264 ax-addcl 11265 ax-addrcl 11266 ax-mulcl 11267 ax-mulrcl 11268 ax-mulcom 11269 ax-addass 11270 ax-mulass 11271 ax-distr 11272 ax-i2m1 11273 ax-1ne0 11274 ax-1rid 11275 ax-rnegex 11276 ax-rrecex 11277 ax-cnre 11278 ax-pre-lttri 11279 ax-pre-lttrn 11280 ax-pre-ltadd 11281 ax-pre-mulgt0 11282 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7379 df-ov 7425 df-oprab 7426 df-mpo 7427 df-om 7880 df-1st 8003 df-2nd 8004 df-frecs 8304 df-wrecs 8335 df-recs 8384 df-rdg 8423 df-1o 8481 df-oadd 8485 df-er 8722 df-map 8854 df-pm 8855 df-en 8979 df-dom 8980 df-sdom 8981 df-fin 8982 df-dju 9987 df-card 10025 df-pnf 11350 df-mnf 11351 df-xr 11352 df-ltxr 11353 df-le 11354 df-sub 11548 df-neg 11549 df-nn 12341 df-2 12410 df-3 12411 df-n0 12612 df-xnn0 12685 df-z 12699 df-uz 12971 df-fz 13645 df-fzo 13794 df-hash 14480 df-word 14664 df-concat 14721 df-s1 14748 df-s2 15005 df-s3 15006 df-trkgc 28917 df-trkgb 28918 df-trkgcb 28919 df-trkg 28922 df-cgrg 28981 df-leg 29053 df-hlg 29071 df-mir 29132 df-cgra 29322 |
| This theorem is used by: tgextalem1inag 33077 |
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