Mathbox for Alexander van der Vekens |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > upwlkbprop | Structured version Visualization version GIF version |
Description: Basic properties of a simple walk. (Contributed by Alexander van der Vekens, 31-Oct-2017.) (Revised by AV, 29-Dec-2020.) |
Ref | Expression |
---|---|
upwlksfval.v | ⊢ 𝑉 = (Vtx‘𝐺) |
upwlksfval.i | ⊢ 𝐼 = (iEdg‘𝐺) |
Ref | Expression |
---|---|
upwlkbprop | ⊢ (𝐹(UPWalks‘𝐺)𝑃 → (𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | upwlksfval.v | . . . . . . . 8 ⊢ 𝑉 = (Vtx‘𝐺) | |
2 | upwlksfval.i | . . . . . . . 8 ⊢ 𝐼 = (iEdg‘𝐺) | |
3 | 1, 2 | upwlksfval 45297 | . . . . . . 7 ⊢ (𝐺 ∈ V → (UPWalks‘𝐺) = {〈𝑓, 𝑝〉 ∣ (𝑓 ∈ Word dom 𝐼 ∧ 𝑝:(0...(♯‘𝑓))⟶𝑉 ∧ ∀𝑘 ∈ (0..^(♯‘𝑓))(𝐼‘(𝑓‘𝑘)) = {(𝑝‘𝑘), (𝑝‘(𝑘 + 1))})}) |
4 | 3 | breqd 5085 | . . . . . 6 ⊢ (𝐺 ∈ V → (𝐹(UPWalks‘𝐺)𝑃 ↔ 𝐹{〈𝑓, 𝑝〉 ∣ (𝑓 ∈ Word dom 𝐼 ∧ 𝑝:(0...(♯‘𝑓))⟶𝑉 ∧ ∀𝑘 ∈ (0..^(♯‘𝑓))(𝐼‘(𝑓‘𝑘)) = {(𝑝‘𝑘), (𝑝‘(𝑘 + 1))})}𝑃)) |
5 | brabv 5482 | . . . . . 6 ⊢ (𝐹{〈𝑓, 𝑝〉 ∣ (𝑓 ∈ Word dom 𝐼 ∧ 𝑝:(0...(♯‘𝑓))⟶𝑉 ∧ ∀𝑘 ∈ (0..^(♯‘𝑓))(𝐼‘(𝑓‘𝑘)) = {(𝑝‘𝑘), (𝑝‘(𝑘 + 1))})}𝑃 → (𝐹 ∈ V ∧ 𝑃 ∈ V)) | |
6 | 4, 5 | syl6bi 252 | . . . . 5 ⊢ (𝐺 ∈ V → (𝐹(UPWalks‘𝐺)𝑃 → (𝐹 ∈ V ∧ 𝑃 ∈ V))) |
7 | 6 | imdistani 569 | . . . 4 ⊢ ((𝐺 ∈ V ∧ 𝐹(UPWalks‘𝐺)𝑃) → (𝐺 ∈ V ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V))) |
8 | 3anass 1094 | . . . 4 ⊢ ((𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V) ↔ (𝐺 ∈ V ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V))) | |
9 | 7, 8 | sylibr 233 | . . 3 ⊢ ((𝐺 ∈ V ∧ 𝐹(UPWalks‘𝐺)𝑃) → (𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V)) |
10 | 9 | ex 413 | . 2 ⊢ (𝐺 ∈ V → (𝐹(UPWalks‘𝐺)𝑃 → (𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V))) |
11 | fvprc 6766 | . . 3 ⊢ (¬ 𝐺 ∈ V → (UPWalks‘𝐺) = ∅) | |
12 | breq 5076 | . . . 4 ⊢ ((UPWalks‘𝐺) = ∅ → (𝐹(UPWalks‘𝐺)𝑃 ↔ 𝐹∅𝑃)) | |
13 | br0 5123 | . . . . 5 ⊢ ¬ 𝐹∅𝑃 | |
14 | 13 | pm2.21i 119 | . . . 4 ⊢ (𝐹∅𝑃 → (𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V)) |
15 | 12, 14 | syl6bi 252 | . . 3 ⊢ ((UPWalks‘𝐺) = ∅ → (𝐹(UPWalks‘𝐺)𝑃 → (𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V))) |
16 | 11, 15 | syl 17 | . 2 ⊢ (¬ 𝐺 ∈ V → (𝐹(UPWalks‘𝐺)𝑃 → (𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V))) |
17 | 10, 16 | pm2.61i 182 | 1 ⊢ (𝐹(UPWalks‘𝐺)𝑃 → (𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ∀wral 3064 Vcvv 3432 ∅c0 4256 {cpr 4563 class class class wbr 5074 {copab 5136 dom cdm 5589 ⟶wf 6429 ‘cfv 6433 (class class class)co 7275 0cc0 10871 1c1 10872 + caddc 10874 ...cfz 13239 ..^cfzo 13382 ♯chash 14044 Word cword 14217 Vtxcvtx 27366 iEdgciedg 27367 UPWalkscupwlks 45295 |
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-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-er 8498 df-map 8617 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 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-n0 12234 df-z 12320 df-uz 12583 df-fz 13240 df-fzo 13383 df-hash 14045 df-word 14218 df-upwlks 45296 |
This theorem is referenced by: upwlkwlk 45301 |
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