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Mirrors > Home > MPE Home > Th. List > tgbtwnconn3 | Structured version Visualization version GIF version |
Description: Inner connectivity law for betweenness. Theorem 5.3 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) |
tgbtwnconn3.1 | ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐷)) |
tgbtwnconn3.2 | ⊢ (𝜑 → 𝐶 ∈ (𝐴𝐼𝐷)) |
Ref | Expression |
---|---|
tgbtwnconn3 | ⊢ (𝜑 → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | tgbtwnconn.p | . . . 4 ⊢ 𝑃 = (Base‘𝐺) | |
2 | eqid 2738 | . . . 4 ⊢ (dist‘𝐺) = (dist‘𝐺) | |
3 | tgbtwnconn.i | . . . 4 ⊢ 𝐼 = (Itv‘𝐺) | |
4 | tgbtwnconn.g | . . . . 5 ⊢ (𝜑 → 𝐺 ∈ TarskiG) | |
5 | 4 | adantr 481 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐺 ∈ TarskiG) |
6 | tgbtwnconn.b | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ 𝑃) | |
7 | 6 | adantr 481 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐵 ∈ 𝑃) |
8 | tgbtwnconn.a | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ 𝑃) | |
9 | 8 | adantr 481 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐴 ∈ 𝑃) |
10 | tgbtwnconn.c | . . . . 5 ⊢ (𝜑 → 𝐶 ∈ 𝑃) | |
11 | 10 | adantr 481 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐶 ∈ 𝑃) |
12 | simpr 485 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → (♯‘𝑃) = 1) | |
13 | 1, 2, 3, 5, 7, 9, 11, 12 | tgldim0itv 26865 | . . 3 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐵 ∈ (𝐴𝐼𝐶)) |
14 | 13 | orcd 870 | . 2 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
15 | 4 | ad3antrrr 727 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐺 ∈ TarskiG) |
16 | simplr 766 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝑝 ∈ 𝑃) | |
17 | 8 | ad3antrrr 727 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ 𝑃) |
18 | 6 | ad3antrrr 727 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐵 ∈ 𝑃) |
19 | 10 | ad3antrrr 727 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐶 ∈ 𝑃) |
20 | simprr 770 | . . . . 5 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ≠ 𝑝) | |
21 | 20 | necomd 2999 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝑝 ≠ 𝐴) |
22 | tgbtwnconn.d | . . . . . . 7 ⊢ (𝜑 → 𝐷 ∈ 𝑃) | |
23 | 22 | ad3antrrr 727 | . . . . . 6 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐷 ∈ 𝑃) |
24 | tgbtwnconn3.1 | . . . . . . 7 ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐷)) | |
25 | 24 | ad3antrrr 727 | . . . . . 6 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐵 ∈ (𝐴𝐼𝐷)) |
26 | simprl 768 | . . . . . . 7 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝐷𝐼𝑝)) | |
27 | 1, 2, 3, 15, 23, 17, 16, 26 | tgbtwncom 26849 | . . . . . 6 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝑝𝐼𝐷)) |
28 | 1, 2, 3, 15, 18, 17, 16, 23, 25, 27 | tgbtwnintr 26854 | . . . . 5 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝐵𝐼𝑝)) |
29 | 1, 2, 3, 15, 18, 17, 16, 28 | tgbtwncom 26849 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝑝𝐼𝐵)) |
30 | tgbtwnconn3.2 | . . . . . . . 8 ⊢ (𝜑 → 𝐶 ∈ (𝐴𝐼𝐷)) | |
31 | 30 | ad3antrrr 727 | . . . . . . 7 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐶 ∈ (𝐴𝐼𝐷)) |
32 | 1, 2, 3, 15, 17, 19, 23, 31 | tgbtwncom 26849 | . . . . . 6 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐶 ∈ (𝐷𝐼𝐴)) |
33 | 1, 2, 3, 15, 23, 19, 17, 16, 32, 26 | tgbtwnexch3 26855 | . . . . 5 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝐶𝐼𝑝)) |
34 | 1, 2, 3, 15, 19, 17, 16, 33 | tgbtwncom 26849 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝑝𝐼𝐶)) |
35 | 1, 3, 15, 16, 17, 18, 19, 21, 29, 34 | tgbtwnconn2 26937 | . . 3 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
36 | 4 | adantr 481 | . . . 4 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → 𝐺 ∈ TarskiG) |
37 | 22 | adantr 481 | . . . 4 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → 𝐷 ∈ 𝑃) |
38 | 8 | adantr 481 | . . . 4 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → 𝐴 ∈ 𝑃) |
39 | simpr 485 | . . . 4 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → 2 ≤ (♯‘𝑃)) | |
40 | 1, 2, 3, 36, 37, 38, 39 | tgbtwndiff 26867 | . . 3 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → ∃𝑝 ∈ 𝑃 (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) |
41 | 35, 40 | r19.29a 3218 | . 2 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
42 | 1, 8 | tgldimor 26863 | . 2 ⊢ (𝜑 → ((♯‘𝑃) = 1 ∨ 2 ≤ (♯‘𝑃))) |
43 | 14, 41, 42 | mpjaodan 956 | 1 ⊢ (𝜑 → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∨ wo 844 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 class class class wbr 5074 ‘cfv 6433 (class class class)co 7275 1c1 10872 ≤ cle 11010 2c2 12028 ♯chash 14044 Basecbs 16912 distcds 16971 TarskiGcstrkg 26788 Itvcitv 26794 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-oadd 8301 df-er 8498 df-pm 8618 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-dju 9659 df-card 9697 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-n0 12234 df-xnn0 12306 df-z 12320 df-uz 12583 df-fz 13240 df-fzo 13383 df-hash 14045 df-word 14218 df-concat 14274 df-s1 14301 df-s2 14561 df-s3 14562 df-trkgc 26809 df-trkgb 26810 df-trkgcb 26811 df-trkg 26814 df-cgrg 26872 |
This theorem is referenced by: tgbtwnconnln3 26939 hltr 26971 hlbtwn 26972 hlpasch 27117 |
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