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| Mirrors > Home > MPE Home > Th. List > tgbtwnconn2 | Structured version Visualization version GIF version | ||
| Description: Another connectivity law for betweenness. Theorem 5.2 of [Schwabhauser] p. 41. (Contributed by Thierry Arnoux, 17-May-2019.) |
| Ref | Expression |
|---|---|
| tgbtwnconn.p | ⊢ 𝑃 = (Base‘𝐺) |
| tgbtwnconn.i | ⊢ 𝐼 = (Itv‘𝐺) |
| tgbtwnconn.g | ⊢ (𝜑 → 𝐺 ∈ TarskiG) |
| tgbtwnconn.a | ⊢ (𝜑 → 𝐴 ∈ 𝑃) |
| tgbtwnconn.b | ⊢ (𝜑 → 𝐵 ∈ 𝑃) |
| tgbtwnconn.c | ⊢ (𝜑 → 𝐶 ∈ 𝑃) |
| tgbtwnconn.d | ⊢ (𝜑 → 𝐷 ∈ 𝑃) |
| tgbtwnconn2.1 | ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| tgbtwnconn2.2 | ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐶)) |
| tgbtwnconn2.3 | ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐷)) |
| Ref | Expression |
|---|---|
| tgbtwnconn2 | ⊢ (𝜑 → (𝐶 ∈ (𝐵𝐼𝐷) ∨ 𝐷 ∈ (𝐵𝐼𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tgbtwnconn.p | . . . 4 ⊢ 𝑃 = (Base‘𝐺) | |
| 2 | eqid 2736 | . . . 4 ⊢ (dist‘𝐺) = (dist‘𝐺) | |
| 3 | tgbtwnconn.i | . . . 4 ⊢ 𝐼 = (Itv‘𝐺) | |
| 4 | tgbtwnconn.g | . . . . 5 ⊢ (𝜑 → 𝐺 ∈ TarskiG) | |
| 5 | 4 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐺 ∈ TarskiG) |
| 6 | tgbtwnconn.a | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ 𝑃) | |
| 7 | 6 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐴 ∈ 𝑃) |
| 8 | tgbtwnconn.b | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ 𝑃) | |
| 9 | 8 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐵 ∈ 𝑃) |
| 10 | tgbtwnconn.c | . . . . 5 ⊢ (𝜑 → 𝐶 ∈ 𝑃) | |
| 11 | 10 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐶 ∈ 𝑃) |
| 12 | tgbtwnconn.d | . . . . 5 ⊢ (𝜑 → 𝐷 ∈ 𝑃) | |
| 13 | 12 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐷 ∈ 𝑃) |
| 14 | tgbtwnconn2.2 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐶)) | |
| 15 | 14 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐵 ∈ (𝐴𝐼𝐶)) |
| 16 | simpr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐶 ∈ (𝐴𝐼𝐷)) | |
| 17 | 1, 2, 3, 5, 7, 9, 11, 13, 15, 16 | tgbtwnexch3 28562 | . . 3 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐶 ∈ (𝐵𝐼𝐷)) |
| 18 | 17 | orcd 874 | . 2 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → (𝐶 ∈ (𝐵𝐼𝐷) ∨ 𝐷 ∈ (𝐵𝐼𝐶))) |
| 19 | 4 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐺 ∈ TarskiG) |
| 20 | 6 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐴 ∈ 𝑃) |
| 21 | 8 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐵 ∈ 𝑃) |
| 22 | 12 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐷 ∈ 𝑃) |
| 23 | 10 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐶 ∈ 𝑃) |
| 24 | tgbtwnconn2.3 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐷)) | |
| 25 | 24 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐵 ∈ (𝐴𝐼𝐷)) |
| 26 | simpr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐷 ∈ (𝐴𝐼𝐶)) | |
| 27 | 1, 2, 3, 19, 20, 21, 22, 23, 25, 26 | tgbtwnexch3 28562 | . . 3 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐷 ∈ (𝐵𝐼𝐶)) |
| 28 | 27 | olcd 875 | . 2 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → (𝐶 ∈ (𝐵𝐼𝐷) ∨ 𝐷 ∈ (𝐵𝐼𝐶))) |
| 29 | tgbtwnconn2.1 | . . 3 ⊢ (𝜑 → 𝐴 ≠ 𝐵) | |
| 30 | 1, 3, 4, 6, 8, 10, 12, 29, 14, 24 | tgbtwnconn1 28643 | . 2 ⊢ (𝜑 → (𝐶 ∈ (𝐴𝐼𝐷) ∨ 𝐷 ∈ (𝐴𝐼𝐶))) |
| 31 | 18, 28, 30 | mpjaodan 961 | 1 ⊢ (𝜑 → (𝐶 ∈ (𝐵𝐼𝐷) ∨ 𝐷 ∈ (𝐵𝐼𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∨ wo 848 = wceq 1542 ∈ wcel 2114 ≠ wne 2932 ‘cfv 6498 (class class class)co 7367 Basecbs 17179 distcds 17229 TarskiGcstrkg 28495 Itvcitv 28501 |
| 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 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4851 df-int 4890 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-oadd 8409 df-er 8643 df-pm 8776 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-dju 9825 df-card 9863 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-nn 12175 df-2 12244 df-3 12245 df-n0 12438 df-xnn0 12511 df-z 12525 df-uz 12789 df-fz 13462 df-fzo 13609 df-hash 14293 df-word 14476 df-concat 14533 df-s1 14559 df-s2 14810 df-s3 14811 df-trkgc 28516 df-trkgb 28517 df-trkgcb 28518 df-trkg 28521 df-cgrg 28579 |
| This theorem is referenced by: tgbtwnconn3 28645 tgbtwnconn22 28647 tgbtwnconnln2 28649 legtrid 28659 hlcgrex 28684 mirbtwnhl 28748 mirhl2 28749 krippenlem 28758 lnopp2hpgb 28831 flatcgra 28892 |
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