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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 2761 | . . . 4 ⊢ (dist‘𝐺) = (dist‘𝐺) | |
| 3 | tgbtwnconn.i | . . . 4 ⊢ 𝐼 = (Itv‘𝐺) | |
| 4 | tgbtwnconn.g | . . . . 5 ⊢ (𝜑 → 𝐺 ∈ TarskiG) | |
| 5 | 4 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐺 ∈ TarskiG) |
| 6 | tgbtwnconn.a | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ 𝑃) | |
| 7 | 6 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐴 ∈ 𝑃) |
| 8 | tgbtwnconn.b | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ 𝑃) | |
| 9 | 8 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐵 ∈ 𝑃) |
| 10 | tgbtwnconn.c | . . . . 5 ⊢ (𝜑 → 𝐶 ∈ 𝑃) | |
| 11 | 10 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐶 ∈ 𝑃) |
| 12 | tgbtwnconn.d | . . . . 5 ⊢ (𝜑 → 𝐷 ∈ 𝑃) | |
| 13 | 12 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐷 ∈ 𝑃) |
| 14 | tgbtwnconn2.2 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐶)) | |
| 15 | 14 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐵 ∈ (𝐴𝐼𝐶)) |
| 16 | simpr 488 | . . . 4 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐶 ∈ (𝐴𝐼𝐷)) | |
| 17 | 1, 2, 3, 5, 7, 9, 11, 13, 15, 16 | tgbtwnexch3 28640 | . . 3 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → 𝐶 ∈ (𝐵𝐼𝐷)) |
| 18 | 17 | orcd 884 | . 2 ⊢ ((𝜑 ∧ 𝐶 ∈ (𝐴𝐼𝐷)) → (𝐶 ∈ (𝐵𝐼𝐷) ∨ 𝐷 ∈ (𝐵𝐼𝐶))) |
| 19 | 4 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐺 ∈ TarskiG) |
| 20 | 6 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐴 ∈ 𝑃) |
| 21 | 8 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐵 ∈ 𝑃) |
| 22 | 12 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐷 ∈ 𝑃) |
| 23 | 10 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐶 ∈ 𝑃) |
| 24 | tgbtwnconn2.3 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐷)) | |
| 25 | 24 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐵 ∈ (𝐴𝐼𝐷)) |
| 26 | simpr 488 | . . . 4 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐷 ∈ (𝐴𝐼𝐶)) | |
| 27 | 1, 2, 3, 19, 20, 21, 22, 23, 25, 26 | tgbtwnexch3 28640 | . . 3 ⊢ ((𝜑 ∧ 𝐷 ∈ (𝐴𝐼𝐶)) → 𝐷 ∈ (𝐵𝐼𝐶)) |
| 28 | 27 | olcd 885 | . 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 28721 | . 2 ⊢ (𝜑 → (𝐶 ∈ (𝐴𝐼𝐷) ∨ 𝐷 ∈ (𝐴𝐼𝐶))) |
| 31 | 18, 28, 30 | mpjaodan 971 | 1 ⊢ (𝜑 → (𝐶 ∈ (𝐵𝐼𝐷) ∨ 𝐷 ∈ (𝐵𝐼𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 ∨ wo 858 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 ‘cfv 6517 (class class class)co 7392 Basecbs 17228 distcds 17278 TarskiGcstrkg 28573 Itvcitv 28579 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 ax-cnex 11126 ax-resscn 11127 ax-1cn 11128 ax-icn 11129 ax-addcl 11130 ax-addrcl 11131 ax-mulcl 11132 ax-mulrcl 11133 ax-mulcom 11134 ax-addass 11135 ax-mulass 11136 ax-distr 11137 ax-i2m1 11138 ax-1ne0 11139 ax-1rid 11140 ax-rnegex 11141 ax-rrecex 11142 ax-cnre 11143 ax-pre-lttri 11144 ax-pre-lttrn 11145 ax-pre-ltadd 11146 ax-pre-mulgt0 11147 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-tp 4586 df-op 4588 df-uni 4865 df-int 4905 df-iun 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-pred 6284 df-ord 6345 df-on 6346 df-lim 6347 df-suc 6348 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-fv 6525 df-riota 7349 df-ov 7395 df-oprab 7396 df-mpo 7397 df-om 7843 df-1st 7966 df-2nd 7967 df-frecs 8257 df-wrecs 8288 df-recs 8337 df-rdg 8376 df-1o 8432 df-oadd 8436 df-er 8673 df-pm 8806 df-en 8924 df-dom 8925 df-sdom 8926 df-fin 8927 df-dju 9856 df-card 9894 df-pnf 11215 df-mnf 11216 df-xr 11217 df-ltxr 11218 df-le 11219 df-sub 11413 df-neg 11414 df-nn 12208 df-2 12277 df-3 12278 df-n0 12479 df-xnn0 12552 df-z 12566 df-uz 12837 df-fz 13510 df-fzo 13657 df-hash 14341 df-word 14524 df-concat 14581 df-s1 14607 df-s2 14858 df-s3 14859 df-trkgc 28594 df-trkgb 28595 df-trkgcb 28596 df-trkg 28599 df-cgrg 28657 |
| This theorem is referenced by: tgbtwnconn3 28723 tgbtwnconn22 28725 tgbtwnconnln2 28727 legtrid 28737 hlcgrex 28762 mirbtwnhl 28826 mirhl2 28827 krippenlem 28836 lnopp2hpgb 28909 flatcgra 28970 |
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