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| Mirrors > Home > MPE Home > Th. List > btwnhl2 | Structured version Visualization version GIF version | ||
| Description: Deduce half-line from betweenness. (Contributed by Thierry Arnoux, 4-Mar-2020.) |
| Ref | Expression |
|---|---|
| ishlg.p | ⊢ 𝑃 = (Base‘𝐺) |
| ishlg.i | ⊢ 𝐼 = (Itv‘𝐺) |
| ishlg.k | ⊢ 𝐾 = (hlG‘𝐺) |
| ishlg.a | ⊢ (𝜑 → 𝐴 ∈ 𝑃) |
| ishlg.b | ⊢ (𝜑 → 𝐵 ∈ 𝑃) |
| ishlg.c | ⊢ (𝜑 → 𝐶 ∈ 𝑃) |
| hlln.1 | ⊢ (𝜑 → 𝐺 ∈ TarskiG) |
| hltr.d | ⊢ (𝜑 → 𝐷 ∈ 𝑃) |
| btwnhl1.1 | ⊢ (𝜑 → 𝐶 ∈ (𝐴𝐼𝐵)) |
| btwnhl1.2 | ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| btwnhl2.3 | ⊢ (𝜑 → 𝐶 ≠ 𝐵) |
| Ref | Expression |
|---|---|
| btwnhl2 | ⊢ (𝜑 → 𝐶(𝐾‘𝐵)𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | btwnhl2.3 | . 2 ⊢ (𝜑 → 𝐶 ≠ 𝐵) | |
| 2 | btwnhl1.2 | . 2 ⊢ (𝜑 → 𝐴 ≠ 𝐵) | |
| 3 | ishlg.p | . . . 4 ⊢ 𝑃 = (Base‘𝐺) | |
| 4 | eqid 2737 | . . . 4 ⊢ (dist‘𝐺) = (dist‘𝐺) | |
| 5 | ishlg.i | . . . 4 ⊢ 𝐼 = (Itv‘𝐺) | |
| 6 | hlln.1 | . . . 4 ⊢ (𝜑 → 𝐺 ∈ TarskiG) | |
| 7 | ishlg.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ 𝑃) | |
| 8 | ishlg.c | . . . 4 ⊢ (𝜑 → 𝐶 ∈ 𝑃) | |
| 9 | ishlg.b | . . . 4 ⊢ (𝜑 → 𝐵 ∈ 𝑃) | |
| 10 | btwnhl1.1 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ (𝐴𝐼𝐵)) | |
| 11 | 3, 4, 5, 6, 7, 8, 9, 10 | tgbtwncom 28578 | . . 3 ⊢ (𝜑 → 𝐶 ∈ (𝐵𝐼𝐴)) |
| 12 | 11 | orcd 874 | . 2 ⊢ (𝜑 → (𝐶 ∈ (𝐵𝐼𝐴) ∨ 𝐴 ∈ (𝐵𝐼𝐶))) |
| 13 | ishlg.k | . . 3 ⊢ 𝐾 = (hlG‘𝐺) | |
| 14 | 3, 5, 13, 8, 7, 9, 6 | ishlg 28692 | . 2 ⊢ (𝜑 → (𝐶(𝐾‘𝐵)𝐴 ↔ (𝐶 ≠ 𝐵 ∧ 𝐴 ≠ 𝐵 ∧ (𝐶 ∈ (𝐵𝐼𝐴) ∨ 𝐴 ∈ (𝐵𝐼𝐶))))) |
| 15 | 1, 2, 12, 14 | mpbir3and 1344 | 1 ⊢ (𝜑 → 𝐶(𝐾‘𝐵)𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∨ wo 848 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 class class class wbr 5100 ‘cfv 6502 (class class class)co 7370 Basecbs 17150 distcds 17200 TarskiGcstrkg 28516 Itvcitv 28522 hlGchlg 28690 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5314 ax-pr 5381 ax-un 7692 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5529 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-iota 6458 df-fun 6504 df-fn 6505 df-f 6506 df-f1 6507 df-fo 6508 df-f1o 6509 df-fv 6510 df-ov 7373 df-trkgc 28537 df-trkgb 28538 df-trkgcb 28539 df-trkg 28542 df-hlg 28691 |
| This theorem is referenced by: hlpasch 28846 |
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