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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 2730 | . 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 2981 | . . 3 ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| 10 | oacgr.4 | . . 3 ⊢ (𝜑 → 𝐵 ≠ 𝐶) | |
| 11 | 1, 2, 3, 4, 5, 6, 7, 9, 10 | cgraswap 28754 | . 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 2981 | . . . 4 ⊢ (𝜑 → 𝐹 ≠ 𝐵) |
| 17 | 1, 2, 3, 4, 13, 6, 5, 16, 8 | cgraswap 28754 | . . 3 ⊢ (𝜑 → 〈“𝐹𝐵𝐴”〉(cgrA‘𝐺)〈“𝐴𝐵𝐹”〉) |
| 18 | oacgr.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ (𝐶𝐼𝐹)) | |
| 19 | 1, 14, 2, 3, 7, 6, 13, 18 | tgbtwncom 28422 | . . 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 28765 | . 2 ⊢ (𝜑 → 〈“𝐶𝐵𝐴”〉(cgrA‘𝐺)〈“𝐷𝐵𝐹”〉) |
| 23 | 1, 2, 3, 4, 5, 6, 7, 7, 6, 5, 11, 12, 6, 13, 22 | cgratr 28757 | 1 ⊢ (𝜑 → 〈“𝐴𝐵𝐶”〉(cgrA‘𝐺)〈“𝐷𝐵𝐹”〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2109 ≠ wne 2926 class class class wbr 5110 ‘cfv 6514 (class class class)co 7390 〈“cs3 14815 Basecbs 17186 distcds 17236 TarskiGcstrkg 28361 Itvcitv 28367 hlGchlg 28534 cgrAccgra 28741 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-rep 5237 ax-sep 5254 ax-nul 5264 ax-pow 5323 ax-pr 5390 ax-un 7714 ax-cnex 11131 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-rmo 3356 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3757 df-csb 3866 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-pss 3937 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-tp 4597 df-op 4599 df-uni 4875 df-int 4914 df-iun 4960 df-br 5111 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5536 df-eprel 5541 df-po 5549 df-so 5550 df-fr 5594 df-we 5596 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6467 df-fun 6516 df-fn 6517 df-f 6518 df-f1 6519 df-fo 6520 df-f1o 6521 df-fv 6522 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7846 df-1st 7971 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8381 df-1o 8437 df-oadd 8441 df-er 8674 df-map 8804 df-pm 8805 df-en 8922 df-dom 8923 df-sdom 8924 df-fin 8925 df-dju 9861 df-card 9899 df-pnf 11217 df-mnf 11218 df-xr 11219 df-ltxr 11220 df-le 11221 df-sub 11414 df-neg 11415 df-nn 12194 df-2 12256 df-3 12257 df-n0 12450 df-xnn0 12523 df-z 12537 df-uz 12801 df-fz 13476 df-fzo 13623 df-hash 14303 df-word 14486 df-concat 14543 df-s1 14568 df-s2 14821 df-s3 14822 df-trkgc 28382 df-trkgb 28383 df-trkgcb 28384 df-trkg 28387 df-cgrg 28445 df-leg 28517 df-hlg 28535 df-mir 28587 df-cgra 28742 |
| This theorem is referenced by: (None) |
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