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Mirrors > Home > MPE Home > Th. List > numclwwlkovh | Structured version Visualization version GIF version |
Description: Value of operation 𝐻, mapping a vertex 𝑣 and an integer 𝑛 greater than 1 to the "closed n-walks v(0) ... v(n-2) v(n-1) v(n) from v = v(0) = v(n) ... with v(n-2) =/= v" according to definition 7 in [Huneke] p. 2. Definition of ClWWalksNOn resolved. (Contributed by Alexander van der Vekens, 26-Aug-2018.) (Revised by AV, 30-May-2021.) (Revised by AV, 1-May-2022.) |
Ref | Expression |
---|---|
numclwwlkovh.h | ⊢ 𝐻 = (𝑣 ∈ 𝑉, 𝑛 ∈ (ℤ≥‘2) ↦ {𝑤 ∈ (𝑣(ClWWalksNOn‘𝐺)𝑛) ∣ (𝑤‘(𝑛 − 2)) ≠ 𝑣}) |
Ref | Expression |
---|---|
numclwwlkovh | ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑋𝐻𝑁) = {𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∣ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | numclwwlkovh.h | . . 3 ⊢ 𝐻 = (𝑣 ∈ 𝑉, 𝑛 ∈ (ℤ≥‘2) ↦ {𝑤 ∈ (𝑣(ClWWalksNOn‘𝐺)𝑛) ∣ (𝑤‘(𝑛 − 2)) ≠ 𝑣}) | |
2 | 1 | numclwwlkovh0 28736 | . 2 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑋𝐻𝑁) = {𝑤 ∈ (𝑋(ClWWalksNOn‘𝐺)𝑁) ∣ (𝑤‘(𝑁 − 2)) ≠ 𝑋}) |
3 | isclwwlknon 28455 | . . . . 5 ⊢ (𝑤 ∈ (𝑋(ClWWalksNOn‘𝐺)𝑁) ↔ (𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋)) | |
4 | 3 | anbi1i 624 | . . . 4 ⊢ ((𝑤 ∈ (𝑋(ClWWalksNOn‘𝐺)𝑁) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋) ↔ ((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋)) |
5 | simpll 764 | . . . . . 6 ⊢ (((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋) → 𝑤 ∈ (𝑁 ClWWalksN 𝐺)) | |
6 | simplr 766 | . . . . . . 7 ⊢ (((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋) → (𝑤‘0) = 𝑋) | |
7 | neeq2 3007 | . . . . . . . . . 10 ⊢ (𝑋 = (𝑤‘0) → ((𝑤‘(𝑁 − 2)) ≠ 𝑋 ↔ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))) | |
8 | 7 | eqcoms 2746 | . . . . . . . . 9 ⊢ ((𝑤‘0) = 𝑋 → ((𝑤‘(𝑁 − 2)) ≠ 𝑋 ↔ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))) |
9 | 8 | adantl 482 | . . . . . . . 8 ⊢ ((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) → ((𝑤‘(𝑁 − 2)) ≠ 𝑋 ↔ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))) |
10 | 9 | biimpa 477 | . . . . . . 7 ⊢ (((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋) → (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0)) |
11 | 6, 10 | jca 512 | . . . . . 6 ⊢ (((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋) → ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))) |
12 | 5, 11 | jca 512 | . . . . 5 ⊢ (((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋) → (𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0)))) |
13 | simpl 483 | . . . . . . 7 ⊢ (((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0)) → (𝑤‘0) = 𝑋) | |
14 | 13 | anim2i 617 | . . . . . 6 ⊢ ((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))) → (𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋)) |
15 | neeq2 3007 | . . . . . . . 8 ⊢ ((𝑤‘0) = 𝑋 → ((𝑤‘(𝑁 − 2)) ≠ (𝑤‘0) ↔ (𝑤‘(𝑁 − 2)) ≠ 𝑋)) | |
16 | 15 | biimpa 477 | . . . . . . 7 ⊢ (((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0)) → (𝑤‘(𝑁 − 2)) ≠ 𝑋) |
17 | 16 | adantl 482 | . . . . . 6 ⊢ ((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))) → (𝑤‘(𝑁 − 2)) ≠ 𝑋) |
18 | 14, 17 | jca 512 | . . . . 5 ⊢ ((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))) → ((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋)) |
19 | 12, 18 | impbii 208 | . . . 4 ⊢ (((𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ (𝑤‘0) = 𝑋) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋) ↔ (𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0)))) |
20 | 4, 19 | bitri 274 | . . 3 ⊢ ((𝑤 ∈ (𝑋(ClWWalksNOn‘𝐺)𝑁) ∧ (𝑤‘(𝑁 − 2)) ≠ 𝑋) ↔ (𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∧ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0)))) |
21 | 20 | rabbia2 3412 | . 2 ⊢ {𝑤 ∈ (𝑋(ClWWalksNOn‘𝐺)𝑁) ∣ (𝑤‘(𝑁 − 2)) ≠ 𝑋} = {𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∣ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))} |
22 | 2, 21 | eqtrdi 2794 | 1 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑋𝐻𝑁) = {𝑤 ∈ (𝑁 ClWWalksN 𝐺) ∣ ((𝑤‘0) = 𝑋 ∧ (𝑤‘(𝑁 − 2)) ≠ (𝑤‘0))}) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 {crab 3068 ‘cfv 6433 (class class class)co 7275 ∈ cmpo 7277 0cc0 10871 − cmin 11205 2c2 12028 ℤ≥cuz 12582 ClWWalksN cclwwlkn 28388 ClWWalksNOncclwwlknon 28451 |
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-oadd 8301 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-xnn0 12306 df-z 12320 df-uz 12583 df-fz 13240 df-fzo 13383 df-hash 14045 df-word 14218 df-clwwlk 28346 df-clwwlkn 28389 df-clwwlknon 28452 |
This theorem is referenced by: numclwwlk2lem1 28740 numclwlk2lem2f 28741 numclwlk2lem2f1o 28743 |
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