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| Mirrors > Home > MPE Home > Th. List > 0wlkons1 | Structured version Visualization version GIF version | ||
| Description: A walk of length 0 from a vertex to itself. (Contributed by AV, 17-Apr-2021.) |
| Ref | Expression |
|---|---|
| 0wlk.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| Ref | Expression |
|---|---|
| 0wlkons1 | ⊢ (𝑁 ∈ 𝑉 → ∅(𝑁(WalksOn‘𝐺)𝑁)〈“𝑁”〉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | s1val 14745 | . . 3 ⊢ (𝑁 ∈ 𝑉 → 〈“𝑁”〉 = {〈0, 𝑁〉}) | |
| 2 | 0z 12704 | . . . . . 6 ⊢ 0 ∈ ℤ | |
| 3 | 2 | jctl 533 | . . . . 5 ⊢ (𝑁 ∈ 𝑉 → (0 ∈ ℤ ∧ 𝑁 ∈ 𝑉)) |
| 4 | f1sng 6868 | . . . . 5 ⊢ ((0 ∈ ℤ ∧ 𝑁 ∈ 𝑉) → {〈0, 𝑁〉}:{0}–1-1→𝑉) | |
| 5 | f1f 6778 | . . . . 5 ⊢ ({〈0, 𝑁〉}:{0}–1-1→𝑉 → {〈0, 𝑁〉}:{0}⟶𝑉) | |
| 6 | 3, 4, 5 | 3syl 19 | . . . 4 ⊢ (𝑁 ∈ 𝑉 → {〈0, 𝑁〉}:{0}⟶𝑉) |
| 7 | id 23 | . . . . 5 ⊢ (〈“𝑁”〉 = {〈0, 𝑁〉} → 〈“𝑁”〉 = {〈0, 𝑁〉}) | |
| 8 | fzsn 13700 | . . . . . 6 ⊢ (0 ∈ ℤ → (0...0) = {0}) | |
| 9 | 2, 8 | mp1i 14 | . . . . 5 ⊢ (〈“𝑁”〉 = {〈0, 𝑁〉} → (0...0) = {0}) |
| 10 | 7, 9 | feq12d 6697 | . . . 4 ⊢ (〈“𝑁”〉 = {〈0, 𝑁〉} → (〈“𝑁”〉:(0...0)⟶𝑉 ↔ {〈0, 𝑁〉}:{0}⟶𝑉)) |
| 11 | 6, 10 | syl5ibrcom 250 | . . 3 ⊢ (𝑁 ∈ 𝑉 → (〈“𝑁”〉 = {〈0, 𝑁〉} → 〈“𝑁”〉:(0...0)⟶𝑉)) |
| 12 | 1, 11 | mpd 16 | . 2 ⊢ (𝑁 ∈ 𝑉 → 〈“𝑁”〉:(0...0)⟶𝑉) |
| 13 | s1fv 14758 | . 2 ⊢ (𝑁 ∈ 𝑉 → (〈“𝑁”〉‘0) = 𝑁) | |
| 14 | 0wlk.v | . . 3 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 15 | 14 | 0wlkon 30711 | . 2 ⊢ ((〈“𝑁”〉:(0...0)⟶𝑉 ∧ (〈“𝑁”〉‘0) = 𝑁) → ∅(𝑁(WalksOn‘𝐺)𝑁)〈“𝑁”〉) |
| 16 | 12, 13, 15 | syl2anc 596 | 1 ⊢ (𝑁 ∈ 𝑉 → ∅(𝑁(WalksOn‘𝐺)𝑁)〈“𝑁”〉) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ∅c0 4278 {csn 4583 〈cop 4589 class class class wbr 5102 ⟶wf 6534 –1-1→wf1 6535 ‘cfv 6538 (class class class)co 7420 0cc0 11200 ℤcz 12693 ...cfz 13639 〈“cs1 14742 Vtxcvtx 29574 WalksOncwlkson 30178 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-ifp 1079 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-1o 8476 df-er 8717 df-map 8849 df-pm 8850 df-en 8974 df-dom 8975 df-sdom 8976 df-fin 8977 df-card 10020 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-nn 12336 df-n0 12607 df-z 12694 df-uz 12966 df-fz 13640 df-fzo 13789 df-hash 14475 df-word 14659 df-s1 14743 df-wlks 30180 df-wlkson 30181 |
| This theorem is used by: (None) |
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