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| Mirrors > Home > MPE Home > Th. List > Mathboxes > tgacne | Structured version Visualization version GIF version | ||
| Description: Non-collinearity of triangle 𝐴𝐵𝐶 implies distinct vertices 𝐴 and 𝐶. (Contributed by JAG, 12-Aug-2026.) |
| Ref | Expression |
|---|---|
| tgacne.p | ⊢ 𝑃 = (Base‘𝐺) |
| tgacne.i | ⊢ 𝐼 = (Itv‘𝐺) |
| tgacne.l | ⊢ 𝐿 = (LineG‘𝐺) |
| tgacne.g | ⊢ (𝜑 → 𝐺 ∈ TarskiG) |
| tgacne.a | ⊢ (𝜑 → 𝐴 ∈ 𝑃) |
| tgacne.b | ⊢ (𝜑 → 𝐵 ∈ 𝑃) |
| tgacne.c | ⊢ (𝜑 → 𝐶 ∈ 𝑃) |
| tgacne.ncol | ⊢ (𝜑 → ¬ (𝐶 ∈ (𝐴𝐿𝐵) ∨ 𝐴 = 𝐵)) |
| Ref | Expression |
|---|---|
| tgacne | ⊢ (𝜑 → 𝐴 ≠ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tgacne.p | . 2 ⊢ 𝑃 = (Base‘𝐺) | |
| 2 | tgacne.i | . 2 ⊢ 𝐼 = (Itv‘𝐺) | |
| 3 | tgacne.l | . 2 ⊢ 𝐿 = (LineG‘𝐺) | |
| 4 | tgacne.g | . 2 ⊢ (𝜑 → 𝐺 ∈ TarskiG) | |
| 5 | tgacne.a | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝑃) | |
| 6 | tgacne.c | . 2 ⊢ (𝜑 → 𝐶 ∈ 𝑃) | |
| 7 | tgacne.b | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝑃) | |
| 8 | tgacne.ncol | . . . 4 ⊢ (𝜑 → ¬ (𝐶 ∈ (𝐴𝐿𝐵) ∨ 𝐴 = 𝐵)) | |
| 9 | 1, 3, 2, 4, 5, 7, 6, 8 | ncolrot1 29055 | . . 3 ⊢ (𝜑 → ¬ (𝐴 ∈ (𝐵𝐿𝐶) ∨ 𝐵 = 𝐶)) |
| 10 | 1, 3, 2, 4, 7, 6, 5, 9 | ncolcom 29054 | . 2 ⊢ (𝜑 → ¬ (𝐴 ∈ (𝐶𝐿𝐵) ∨ 𝐶 = 𝐵)) |
| 11 | 1, 2, 3, 4, 5, 6, 7, 10 | ncolne1 29123 | 1 ⊢ (𝜑 → 𝐴 ≠ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∨ wo 861 = wceq 1570 ∈ wcel 2147 ≠ wne 2959 ‘cfv 6558 (class class class)co 7443 Basecbs 17416 TarskiGcstrkg 28919 Itvcitv 28925 LineGclng 28926 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pr 5395 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-iota 6512 df-fun 6560 df-fv 6566 df-ov 7446 df-oprab 7447 df-mpo 7448 df-trkgc 28940 df-trkgb 28941 df-trkgcb 28942 df-trkg 28945 |
| This theorem is used by: tgmircgra 33096 tgaascgra 33113 |
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