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| Mirrors > Home > MPE Home > Th. List > 0trlon | Structured version Visualization version GIF version | ||
| Description: A trail of length 0 from a vertex to itself. (Contributed by Alexander van der Vekens, 2-Dec-2017.) (Revised by AV, 8-Jan-2021.) (Revised by AV, 23-Mar-2021.) (Proof shortened by AV, 30-Oct-2021.) |
| Ref | Expression |
|---|---|
| 0wlk.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| Ref | Expression |
|---|---|
| 0trlon | ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → ∅(𝑁(TrailsOn‘𝐺)𝑁)𝑃) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0wlk.v | . . 3 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 2 | 1 | 0wlkon 30411 | . 2 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → ∅(𝑁(WalksOn‘𝐺)𝑁)𝑃) |
| 3 | simpl 487 | . . 3 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → 𝑃:(0...0)⟶𝑉) | |
| 4 | 1 | 0wlkonlem1 30409 | . . . 4 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → (𝑁 ∈ 𝑉 ∧ 𝑁 ∈ 𝑉)) |
| 5 | 1 | 1vgrex 29292 | . . . . 5 ⊢ (𝑁 ∈ 𝑉 → 𝐺 ∈ V) |
| 6 | 5 | adantr 485 | . . . 4 ⊢ ((𝑁 ∈ 𝑉 ∧ 𝑁 ∈ 𝑉) → 𝐺 ∈ V) |
| 7 | 1 | 0trl 30413 | . . . 4 ⊢ (𝐺 ∈ V → (∅(Trails‘𝐺)𝑃 ↔ 𝑃:(0...0)⟶𝑉)) |
| 8 | 4, 6, 7 | 3syl 19 | . . 3 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → (∅(Trails‘𝐺)𝑃 ↔ 𝑃:(0...0)⟶𝑉)) |
| 9 | 3, 8 | mpbird 260 | . 2 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → ∅(Trails‘𝐺)𝑃) |
| 10 | 0ex 5272 | . . . 4 ⊢ ∅ ∈ V | |
| 11 | 10 | a1i 11 | . . 3 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → ∅ ∈ V) |
| 12 | 1 | 0wlkonlem2 30410 | . . 3 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → 𝑃 ∈ (𝑉 ↑pm (0...0))) |
| 13 | 1 | istrlson 29994 | . . 3 ⊢ (((𝑁 ∈ 𝑉 ∧ 𝑁 ∈ 𝑉) ∧ (∅ ∈ V ∧ 𝑃 ∈ (𝑉 ↑pm (0...0)))) → (∅(𝑁(TrailsOn‘𝐺)𝑁)𝑃 ↔ (∅(𝑁(WalksOn‘𝐺)𝑁)𝑃 ∧ ∅(Trails‘𝐺)𝑃))) |
| 14 | 4, 11, 12, 13 | syl12anc 849 | . 2 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → (∅(𝑁(TrailsOn‘𝐺)𝑁)𝑃 ↔ (∅(𝑁(WalksOn‘𝐺)𝑁)𝑃 ∧ ∅(Trails‘𝐺)𝑃))) |
| 15 | 2, 9, 14 | mpbir2and 725 | 1 ⊢ ((𝑃:(0...0)⟶𝑉 ∧ (𝑃‘0) = 𝑁) → ∅(𝑁(TrailsOn‘𝐺)𝑁)𝑃) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1567 ∈ wcel 2149 Vcvv 3463 ∅c0 4294 class class class wbr 5113 ⟶wf 6533 ‘cfv 6537 (class class class)co 7411 ↑pm cpm 8824 0cc0 11099 ...cfz 13534 Vtxcvtx 29286 WalksOncwlkson 29887 Trailsctrls 29978 TrailsOnctrlson 29979 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5242 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11155 ax-resscn 11156 ax-1cn 11157 ax-icn 11158 ax-addcl 11159 ax-addrcl 11160 ax-mulcl 11161 ax-mulrcl 11162 ax-mulcom 11163 ax-addass 11164 ax-mulass 11165 ax-distr 11166 ax-i2m1 11167 ax-1ne0 11168 ax-1rid 11169 ax-rnegex 11170 ax-rrecex 11171 ax-cnre 11172 ax-pre-lttri 11173 ax-pre-lttrn 11174 ax-pre-ltadd 11175 ax-pre-mulgt0 11176 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-ifp 1077 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-int 4917 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7862 df-1st 7985 df-2nd 7986 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-1o 8452 df-er 8693 df-map 8825 df-pm 8826 df-en 8943 df-dom 8944 df-sdom 8945 df-fin 8946 df-card 9924 df-pnf 11244 df-mnf 11245 df-xr 11246 df-ltxr 11247 df-le 11248 df-sub 11442 df-neg 11443 df-nn 12233 df-n0 12504 df-z 12591 df-uz 12862 df-fz 13535 df-fzo 13682 df-hash 14366 df-word 14550 df-wlks 29889 df-wlkson 29890 df-trls 29980 df-trlson 29981 |
| This theorem is referenced by: 0pthon 30418 |
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