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Mirrors > Home > MPE Home > Th. List > eupth2lem3lem1 | Structured version Visualization version GIF version |
Description: Lemma for eupth2lem3 27096. (Contributed by AV, 21-Feb-2021.) |
Ref | Expression |
---|---|
trlsegvdeg.v | ⊢ 𝑉 = (Vtx‘𝐺) |
trlsegvdeg.i | ⊢ 𝐼 = (iEdg‘𝐺) |
trlsegvdeg.f | ⊢ (𝜑 → Fun 𝐼) |
trlsegvdeg.n | ⊢ (𝜑 → 𝑁 ∈ (0..^(#‘𝐹))) |
trlsegvdeg.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
trlsegvdeg.w | ⊢ (𝜑 → 𝐹(Trails‘𝐺)𝑃) |
trlsegvdeg.vx | ⊢ (𝜑 → (Vtx‘𝑋) = 𝑉) |
trlsegvdeg.vy | ⊢ (𝜑 → (Vtx‘𝑌) = 𝑉) |
trlsegvdeg.vz | ⊢ (𝜑 → (Vtx‘𝑍) = 𝑉) |
trlsegvdeg.ix | ⊢ (𝜑 → (iEdg‘𝑋) = (𝐼 ↾ (𝐹 “ (0..^𝑁)))) |
trlsegvdeg.iy | ⊢ (𝜑 → (iEdg‘𝑌) = {〈(𝐹‘𝑁), (𝐼‘(𝐹‘𝑁))〉}) |
trlsegvdeg.iz | ⊢ (𝜑 → (iEdg‘𝑍) = (𝐼 ↾ (𝐹 “ (0...𝑁)))) |
Ref | Expression |
---|---|
eupth2lem3lem1 | ⊢ (𝜑 → ((VtxDeg‘𝑋)‘𝑈) ∈ ℕ0) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | trlsegvdeg.u | . . . . 5 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
2 | trlsegvdeg.vx | . . . . 5 ⊢ (𝜑 → (Vtx‘𝑋) = 𝑉) | |
3 | 1, 2 | eleqtrrd 2704 | . . . 4 ⊢ (𝜑 → 𝑈 ∈ (Vtx‘𝑋)) |
4 | 3 | elfvexd 6222 | . . 3 ⊢ (𝜑 → 𝑋 ∈ V) |
5 | trlsegvdeg.v | . . . 4 ⊢ 𝑉 = (Vtx‘𝐺) | |
6 | trlsegvdeg.i | . . . 4 ⊢ 𝐼 = (iEdg‘𝐺) | |
7 | trlsegvdeg.f | . . . 4 ⊢ (𝜑 → Fun 𝐼) | |
8 | trlsegvdeg.n | . . . 4 ⊢ (𝜑 → 𝑁 ∈ (0..^(#‘𝐹))) | |
9 | trlsegvdeg.w | . . . 4 ⊢ (𝜑 → 𝐹(Trails‘𝐺)𝑃) | |
10 | trlsegvdeg.vy | . . . 4 ⊢ (𝜑 → (Vtx‘𝑌) = 𝑉) | |
11 | trlsegvdeg.vz | . . . 4 ⊢ (𝜑 → (Vtx‘𝑍) = 𝑉) | |
12 | trlsegvdeg.ix | . . . 4 ⊢ (𝜑 → (iEdg‘𝑋) = (𝐼 ↾ (𝐹 “ (0..^𝑁)))) | |
13 | trlsegvdeg.iy | . . . 4 ⊢ (𝜑 → (iEdg‘𝑌) = {〈(𝐹‘𝑁), (𝐼‘(𝐹‘𝑁))〉}) | |
14 | trlsegvdeg.iz | . . . 4 ⊢ (𝜑 → (iEdg‘𝑍) = (𝐼 ↾ (𝐹 “ (0...𝑁)))) | |
15 | 5, 6, 7, 8, 1, 9, 2, 10, 11, 12, 13, 14 | trlsegvdeglem6 27085 | . . 3 ⊢ (𝜑 → dom (iEdg‘𝑋) ∈ Fin) |
16 | eqid 2622 | . . . 4 ⊢ (Vtx‘𝑋) = (Vtx‘𝑋) | |
17 | eqid 2622 | . . . 4 ⊢ (iEdg‘𝑋) = (iEdg‘𝑋) | |
18 | eqid 2622 | . . . 4 ⊢ dom (iEdg‘𝑋) = dom (iEdg‘𝑋) | |
19 | 16, 17, 18 | vtxdgfisf 26372 | . . 3 ⊢ ((𝑋 ∈ V ∧ dom (iEdg‘𝑋) ∈ Fin) → (VtxDeg‘𝑋):(Vtx‘𝑋)⟶ℕ0) |
20 | 4, 15, 19 | syl2anc 693 | . 2 ⊢ (𝜑 → (VtxDeg‘𝑋):(Vtx‘𝑋)⟶ℕ0) |
21 | 20, 3 | ffvelrnd 6360 | 1 ⊢ (𝜑 → ((VtxDeg‘𝑋)‘𝑈) ∈ ℕ0) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1483 ∈ wcel 1990 Vcvv 3200 {csn 4177 〈cop 4183 class class class wbr 4653 dom cdm 5114 ↾ cres 5116 “ cima 5117 Fun wfun 5882 ⟶wf 5884 ‘cfv 5888 (class class class)co 6650 Fincfn 7955 0cc0 9936 ℕ0cn0 11292 ...cfz 12326 ..^cfzo 12465 #chash 13117 Vtxcvtx 25874 iEdgciedg 25875 VtxDegcvtxdg 26361 Trailsctrls 26587 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-ifp 1013 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-1st 7168 df-2nd 7169 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-er 7742 df-map 7859 df-pm 7860 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-card 8765 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-n0 11293 df-xnn0 11364 df-z 11378 df-uz 11688 df-xadd 11947 df-fz 12327 df-fzo 12466 df-hash 13118 df-word 13299 df-vtxdg 26362 df-wlks 26495 df-trls 26589 |
This theorem is referenced by: eupth2lem3lem3 27090 eupth2lem3lem4 27091 eupth2lem3lem6 27093 |
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