Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > rusgraprop4 | Structured version Visualization version GIF version |
Description: The properties of a k-regular undirected simple graph expressed with trailing edges of walks (as words). (Contributed by Alexander van der Vekens, 2-Aug-2018.) |
Ref | Expression |
---|---|
rusgraprop4 | ⊢ (〈𝑉, 𝐸〉 RegUSGrph 𝐾 → (𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑝 ∈ Word 𝑉(𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rusgraprop3 26470 | . 2 ⊢ (〈𝑉, 𝐸〉 RegUSGrph 𝐾 → (𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾)) | |
2 | simp1 1054 | . . 3 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾) → 𝑉 USGrph 𝐸) | |
3 | simp2 1055 | . . 3 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾) → 𝐾 ∈ ℕ0) | |
4 | lswcl 13208 | . . . . . . . . . . . 12 ⊢ ((𝑝 ∈ Word 𝑉 ∧ 𝑝 ≠ ∅) → ( lastS ‘𝑝) ∈ 𝑉) | |
5 | 4 | adantll 746 | . . . . . . . . . . 11 ⊢ (((𝑉 USGrph 𝐸 ∧ 𝑝 ∈ Word 𝑉) ∧ 𝑝 ≠ ∅) → ( lastS ‘𝑝) ∈ 𝑉) |
6 | preq1 4212 | . . . . . . . . . . . . . . . 16 ⊢ (𝑣 = ( lastS ‘𝑝) → {𝑣, 𝑛} = {( lastS ‘𝑝), 𝑛}) | |
7 | 6 | eleq1d 2672 | . . . . . . . . . . . . . . 15 ⊢ (𝑣 = ( lastS ‘𝑝) → ({𝑣, 𝑛} ∈ ran 𝐸 ↔ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸)) |
8 | 7 | rabbidv 3164 | . . . . . . . . . . . . . 14 ⊢ (𝑣 = ( lastS ‘𝑝) → {𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸} = {𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) |
9 | 8 | fveq2d 6107 | . . . . . . . . . . . . 13 ⊢ (𝑣 = ( lastS ‘𝑝) → (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸})) |
10 | 9 | eqeq1d 2612 | . . . . . . . . . . . 12 ⊢ (𝑣 = ( lastS ‘𝑝) → ((#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾 ↔ (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾)) |
11 | 10 | rspcv 3278 | . . . . . . . . . . 11 ⊢ (( lastS ‘𝑝) ∈ 𝑉 → (∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾 → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾)) |
12 | 5, 11 | syl 17 | . . . . . . . . . 10 ⊢ (((𝑉 USGrph 𝐸 ∧ 𝑝 ∈ Word 𝑉) ∧ 𝑝 ≠ ∅) → (∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾 → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾)) |
13 | 12 | ex 449 | . . . . . . . . 9 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑝 ∈ Word 𝑉) → (𝑝 ≠ ∅ → (∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾 → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾))) |
14 | 13 | com23 84 | . . . . . . . 8 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑝 ∈ Word 𝑉) → (∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾 → (𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾))) |
15 | 14 | ex 449 | . . . . . . 7 ⊢ (𝑉 USGrph 𝐸 → (𝑝 ∈ Word 𝑉 → (∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾 → (𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾)))) |
16 | 15 | com23 84 | . . . . . 6 ⊢ (𝑉 USGrph 𝐸 → (∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾 → (𝑝 ∈ Word 𝑉 → (𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾)))) |
17 | 16 | a1d 25 | . . . . 5 ⊢ (𝑉 USGrph 𝐸 → (𝐾 ∈ ℕ0 → (∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾 → (𝑝 ∈ Word 𝑉 → (𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾))))) |
18 | 17 | 3imp1 1272 | . . . 4 ⊢ (((𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾) ∧ 𝑝 ∈ Word 𝑉) → (𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾)) |
19 | 18 | ralrimiva 2949 | . . 3 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾) → ∀𝑝 ∈ Word 𝑉(𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾)) |
20 | 2, 3, 19 | 3jca 1235 | . 2 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑣 ∈ 𝑉 (#‘{𝑛 ∈ 𝑉 ∣ {𝑣, 𝑛} ∈ ran 𝐸}) = 𝐾) → (𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑝 ∈ Word 𝑉(𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾))) |
21 | 1, 20 | syl 17 | 1 ⊢ (〈𝑉, 𝐸〉 RegUSGrph 𝐾 → (𝑉 USGrph 𝐸 ∧ 𝐾 ∈ ℕ0 ∧ ∀𝑝 ∈ Word 𝑉(𝑝 ≠ ∅ → (#‘{𝑛 ∈ 𝑉 ∣ {( lastS ‘𝑝), 𝑛} ∈ ran 𝐸}) = 𝐾))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 ∀wral 2896 {crab 2900 ∅c0 3874 {cpr 4127 〈cop 4131 class class class wbr 4583 ran crn 5039 ‘cfv 5804 ℕ0cn0 11169 #chash 12979 Word cword 13146 lastS clsw 13147 USGrph cusg 25859 RegUSGrph crusgra 26450 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-int 4411 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-1o 7447 df-2o 7448 df-oadd 7451 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-fin 7845 df-card 8648 df-cda 8873 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-2 10956 df-n0 11170 df-xnn0 11241 df-z 11255 df-uz 11564 df-xadd 11823 df-fz 12198 df-fzo 12335 df-hash 12980 df-word 13154 df-lsw 13155 df-usgra 25862 df-nbgra 25949 df-vdgr 26421 df-rgra 26451 df-rusgra 26452 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |