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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 2739 | . . . 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 ∧ (♯‘𝑃) = 1) → 𝐺 ∈ TarskiG) |
6 | tgbtwnconn.b | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ 𝑃) | |
7 | 6 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐵 ∈ 𝑃) |
8 | tgbtwnconn.a | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ 𝑃) | |
9 | 8 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐴 ∈ 𝑃) |
10 | tgbtwnconn.c | . . . . 5 ⊢ (𝜑 → 𝐶 ∈ 𝑃) | |
11 | 10 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐶 ∈ 𝑃) |
12 | simpr 484 | . . . 4 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → (♯‘𝑃) = 1) | |
13 | 1, 2, 3, 5, 7, 9, 11, 12 | tgldim0itv 26846 | . . 3 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → 𝐵 ∈ (𝐴𝐼𝐶)) |
14 | 13 | orcd 869 | . 2 ⊢ ((𝜑 ∧ (♯‘𝑃) = 1) → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
15 | 4 | ad3antrrr 726 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐺 ∈ TarskiG) |
16 | simplr 765 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝑝 ∈ 𝑃) | |
17 | 8 | ad3antrrr 726 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ 𝑃) |
18 | 6 | ad3antrrr 726 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐵 ∈ 𝑃) |
19 | 10 | ad3antrrr 726 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐶 ∈ 𝑃) |
20 | simprr 769 | . . . . 5 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ≠ 𝑝) | |
21 | 20 | necomd 3000 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝑝 ≠ 𝐴) |
22 | tgbtwnconn.d | . . . . . . 7 ⊢ (𝜑 → 𝐷 ∈ 𝑃) | |
23 | 22 | ad3antrrr 726 | . . . . . 6 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐷 ∈ 𝑃) |
24 | tgbtwnconn3.1 | . . . . . . 7 ⊢ (𝜑 → 𝐵 ∈ (𝐴𝐼𝐷)) | |
25 | 24 | ad3antrrr 726 | . . . . . 6 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐵 ∈ (𝐴𝐼𝐷)) |
26 | simprl 767 | . . . . . . 7 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝐷𝐼𝑝)) | |
27 | 1, 2, 3, 15, 23, 17, 16, 26 | tgbtwncom 26830 | . . . . . 6 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝑝𝐼𝐷)) |
28 | 1, 2, 3, 15, 18, 17, 16, 23, 25, 27 | tgbtwnintr 26835 | . . . . 5 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝐵𝐼𝑝)) |
29 | 1, 2, 3, 15, 18, 17, 16, 28 | tgbtwncom 26830 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝑝𝐼𝐵)) |
30 | tgbtwnconn3.2 | . . . . . . . 8 ⊢ (𝜑 → 𝐶 ∈ (𝐴𝐼𝐷)) | |
31 | 30 | ad3antrrr 726 | . . . . . . 7 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐶 ∈ (𝐴𝐼𝐷)) |
32 | 1, 2, 3, 15, 17, 19, 23, 31 | tgbtwncom 26830 | . . . . . 6 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐶 ∈ (𝐷𝐼𝐴)) |
33 | 1, 2, 3, 15, 23, 19, 17, 16, 32, 26 | tgbtwnexch3 26836 | . . . . 5 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝐶𝐼𝑝)) |
34 | 1, 2, 3, 15, 19, 17, 16, 33 | tgbtwncom 26830 | . . . 4 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → 𝐴 ∈ (𝑝𝐼𝐶)) |
35 | 1, 3, 15, 16, 17, 18, 19, 21, 29, 34 | tgbtwnconn2 26918 | . . 3 ⊢ ((((𝜑 ∧ 2 ≤ (♯‘𝑃)) ∧ 𝑝 ∈ 𝑃) ∧ (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
36 | 4 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → 𝐺 ∈ TarskiG) |
37 | 22 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → 𝐷 ∈ 𝑃) |
38 | 8 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → 𝐴 ∈ 𝑃) |
39 | simpr 484 | . . . 4 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → 2 ≤ (♯‘𝑃)) | |
40 | 1, 2, 3, 36, 37, 38, 39 | tgbtwndiff 26848 | . . 3 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → ∃𝑝 ∈ 𝑃 (𝐴 ∈ (𝐷𝐼𝑝) ∧ 𝐴 ≠ 𝑝)) |
41 | 35, 40 | r19.29a 3219 | . 2 ⊢ ((𝜑 ∧ 2 ≤ (♯‘𝑃)) → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
42 | 1, 8 | tgldimor 26844 | . 2 ⊢ (𝜑 → ((♯‘𝑃) = 1 ∨ 2 ≤ (♯‘𝑃))) |
43 | 14, 41, 42 | mpjaodan 955 | 1 ⊢ (𝜑 → (𝐵 ∈ (𝐴𝐼𝐶) ∨ 𝐶 ∈ (𝐴𝐼𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∨ wo 843 = wceq 1541 ∈ wcel 2109 ≠ wne 2944 class class class wbr 5078 ‘cfv 6430 (class class class)co 7268 1c1 10856 ≤ cle 10994 2c2 12011 ♯chash 14025 Basecbs 16893 distcds 16952 TarskiGcstrkg 26769 Itvcitv 26775 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-int 4885 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7701 df-1st 7817 df-2nd 7818 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-1o 8281 df-oadd 8285 df-er 8472 df-pm 8592 df-en 8708 df-dom 8709 df-sdom 8710 df-fin 8711 df-dju 9643 df-card 9681 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-nn 11957 df-2 12019 df-3 12020 df-n0 12217 df-xnn0 12289 df-z 12303 df-uz 12565 df-fz 13222 df-fzo 13365 df-hash 14026 df-word 14199 df-concat 14255 df-s1 14282 df-s2 14542 df-s3 14543 df-trkgc 26790 df-trkgb 26791 df-trkgcb 26792 df-trkg 26795 df-cgrg 26853 |
This theorem is referenced by: tgbtwnconnln3 26920 hltr 26952 hlbtwn 26953 hlpasch 27098 |
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