Theorem eclclwwlkn1 30279

Description: An equivalence class according to ∼. (Contributed by Alexander van der Vekens, 12-Apr-2018.) (Revised by AV, 30-Apr-2021.)

Hypotheses

Ref	Expression
erclwwlkn.w	⊢ 𝑊 = (𝑁 ClWWalksN 𝐺)
erclwwlkn.r	⊢ ∼ = {⟨𝑡, 𝑢⟩ ∣ (𝑡 ∈ 𝑊 ∧ 𝑢 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑡 = (𝑢 cyclShift 𝑛))}

Assertion

Ref	Expression
eclclwwlkn1	⊢ (𝐵 ∈ 𝑋 → (𝐵 ∈ (𝑊 / ∼ ) ↔ ∃𝑥 ∈ 𝑊 𝐵 = {𝑦 ∈ 𝑊 ∣ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)}))

Distinct variable groups:   𝑡,𝑊,𝑢   𝑛,𝑁,𝑢,𝑡,𝑥,𝑦   𝑛,𝑊   𝑥, ∼ ,𝑦   𝑥,𝑊   𝑥,𝐺   𝑥,𝑋   𝑥,𝐵,𝑦   𝑦,𝑁   𝑦,𝑊   𝑦,𝑋

Allowed substitution hints:   𝐵(𝑢,𝑡,𝑛)   ∼ (𝑢,𝑡,𝑛)   𝐺(𝑦,𝑢,𝑡,𝑛)   𝑋(𝑢,𝑡,𝑛)

Proof of Theorem eclclwwlkn1

Step	Hyp	Ref	Expression
1		elqsecl 8750	. 2 ⊢ (𝐵 ∈ 𝑋 → (𝐵 ∈ (𝑊 / ∼ ) ↔ ∃𝑥 ∈ 𝑊 𝐵 = {𝑦 ∣ 𝑥 ∼ 𝑦}))
2		erclwwlkn.w	. . . . . . . . 9 ⊢ 𝑊 = (𝑁 ClWWalksN 𝐺)
3		erclwwlkn.r	. . . . . . . . 9 ⊢ ∼ = {⟨𝑡, 𝑢⟩ ∣ (𝑡 ∈ 𝑊 ∧ 𝑢 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑡 = (𝑢 cyclShift 𝑛))}
4	2, 3	erclwwlknsym 30274	. . . . . . . 8 ⊢ (𝑥 ∼ 𝑦 → 𝑦 ∼ 𝑥)
5	2, 3	erclwwlknsym 30274	. . . . . . . 8 ⊢ (𝑦 ∼ 𝑥 → 𝑥 ∼ 𝑦)
6	4, 5	impbii 211	. . . . . . 7 ⊢ (𝑥 ∼ 𝑦 ↔ 𝑦 ∼ 𝑥)
7	6	a1i 11	. . . . . 6 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → (𝑥 ∼ 𝑦 ↔ 𝑦 ∼ 𝑥))
8	7	abbidv 2830	. . . . 5 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → {𝑦 ∣ 𝑥 ∼ 𝑦} = {𝑦 ∣ 𝑦 ∼ 𝑥})
9	2, 3	erclwwlkneq 30271	. . . . . . . 8 ⊢ ((𝑦 ∈ V ∧ 𝑥 ∈ V) → (𝑦 ∼ 𝑥 ↔ (𝑦 ∈ 𝑊 ∧ 𝑥 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))))
10	9	el2v 3463	. . . . . . 7 ⊢ (𝑦 ∼ 𝑥 ↔ (𝑦 ∈ 𝑊 ∧ 𝑥 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)))
11	10	a1i 11	. . . . . 6 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → (𝑦 ∼ 𝑥 ↔ (𝑦 ∈ 𝑊 ∧ 𝑥 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))))
12	11	abbidv 2830	. . . . 5 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → {𝑦 ∣ 𝑦 ∼ 𝑥} = {𝑦 ∣ (𝑦 ∈ 𝑊 ∧ 𝑥 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))})
13		3anan12 1108	. . . . . . . 8 ⊢ ((𝑦 ∈ 𝑊 ∧ 𝑥 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)) ↔ (𝑥 ∈ 𝑊 ∧ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))))
14		ibar 536	. . . . . . . . . 10 ⊢ (𝑥 ∈ 𝑊 → ((𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)) ↔ (𝑥 ∈ 𝑊 ∧ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)))))
15	14	bicomd 225	. . . . . . . . 9 ⊢ (𝑥 ∈ 𝑊 → ((𝑥 ∈ 𝑊 ∧ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))) ↔ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))))
16	15	adantl 485	. . . . . . . 8 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → ((𝑥 ∈ 𝑊 ∧ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))) ↔ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))))
17	13, 16	bitrid 285	. . . . . . 7 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → ((𝑦 ∈ 𝑊 ∧ 𝑥 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)) ↔ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))))
18	17	abbidv 2830	. . . . . 6 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → {𝑦 ∣ (𝑦 ∈ 𝑊 ∧ 𝑥 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))} = {𝑦 ∣ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))})
19		df-rab 3417	. . . . . 6 ⊢ {𝑦 ∈ 𝑊 ∣ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)} = {𝑦 ∣ (𝑦 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))}
20	18, 19	eqtr4di 2817	. . . . 5 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → {𝑦 ∣ (𝑦 ∈ 𝑊 ∧ 𝑥 ∈ 𝑊 ∧ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛))} = {𝑦 ∈ 𝑊 ∣ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)})
21	8, 12, 20	3eqtrd 2803	. . . 4 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → {𝑦 ∣ 𝑥 ∼ 𝑦} = {𝑦 ∈ 𝑊 ∣ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)})
22	21	eqeq2d 2775	. . 3 ⊢ ((𝐵 ∈ 𝑋 ∧ 𝑥 ∈ 𝑊) → (𝐵 = {𝑦 ∣ 𝑥 ∼ 𝑦} ↔ 𝐵 = {𝑦 ∈ 𝑊 ∣ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)}))
23	22	rexbidva 3186	. 2 ⊢ (𝐵 ∈ 𝑋 → (∃𝑥 ∈ 𝑊 𝐵 = {𝑦 ∣ 𝑥 ∼ 𝑦} ↔ ∃𝑥 ∈ 𝑊 𝐵 = {𝑦 ∈ 𝑊 ∣ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)}))
24	1, 23	bitrd 281	1 ⊢ (𝐵 ∈ 𝑋 → (𝐵 ∈ (𝑊 / ∼ ) ↔ ∃𝑥 ∈ 𝑊 𝐵 = {𝑦 ∈ 𝑊 ∣ ∃𝑛 ∈ (0...𝑁)𝑦 = (𝑥 cyclShift 𝑛)}))

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 399   ∧ w3a 1099   = wceq 1562   ∈ wcel 2144  {cab 2742  ∃wrex 3088  {crab 3416  Vcvv 3456   class class class wbr 5102  {copab 5164  (class class class)co 7398   / cqs 8679  0cc0 11075  ...cfz 13514   cyclShift ccsh 14803   ClWWalksN cclwwlkn 30228

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1817  ax-4 1831  ax-5 1932  ax-6 1989  ax-7 2030  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2214  ax-ext 2736  ax-rep 5229  ax-sep 5248  ax-nul 5258  ax-pow 5324  ax-pr 5392  ax-un 7720  ax-cnex 11131  ax-resscn 11132  ax-1cn 11133  ax-icn 11134  ax-addcl 11135  ax-addrcl 11136  ax-mulcl 11137  ax-mulrcl 11138  ax-mulcom 11139  ax-addass 11140  ax-mulass 11141  ax-distr 11142  ax-i2m1 11143  ax-1ne0 11144  ax-1rid 11145  ax-rnegex 11146  ax-rrecex 11147  ax-cnre 11148  ax-pre-lttri 11149  ax-pre-lttrn 11150  ax-pre-ltadd 11151  ax-pre-mulgt0 11152  ax-pre-sup 11153

This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3or 1100  df-3an 1101  df-tru 1565  df-fal 1575  df-ex 1802  df-nf 1806  df-sb 2093  df-mo 2568  df-eu 2598  df-clab 2743  df-cleq 2756  df-clel 2839  df-nfc 2913  df-ne 2960  df-nel 3064  df-ral 3079  df-rex 3089  df-rmo 3369  df-reu 3370  df-rab 3417  df-v 3458  df-sbc 3747  df-csb 3855  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-pss 3926  df-nul 4288  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-int 4908  df-iun 4953  df-br 5103  df-opab 5165  df-mpt 5184  df-tr 5210  df-id 5544  df-eprel 5549  df-po 5557  df-so 5558  df-fr 5602  df-we 5604  df-xp 5655  df-rel 5656  df-cnv 5657  df-co 5658  df-dm 5659  df-rn 5660  df-res 5661  df-ima 5662  df-pred 6290  df-ord 6351  df-on 6352  df-lim 6353  df-suc 6354  df-iota 6479  df-fun 6525  df-fn 6526  df-f 6527  df-f1 6528  df-fo 6529  df-f1o 6530  df-fv 6531  df-riota 7355  df-ov 7401  df-oprab 7402  df-mpo 7403  df-om 7849  df-1st 7972  df-2nd 7973  df-frecs 8264  df-wrecs 8295  df-recs 8344  df-rdg 8383  df-1o 8439  df-er 8680  df-ec 8682  df-qs 8686  df-map 8812  df-en 8930  df-dom 8931  df-sdom 8932  df-fin 8933  df-sup 9390  df-inf 9391  df-card 9899  df-pnf 11220  df-mnf 11221  df-xr 11222  df-ltxr 11223  df-le 11224  df-sub 11418  df-neg 11419  df-div 11847  df-nn 12213  df-2 12282  df-n0 12484  df-z 12571  df-uz 12842  df-rp 12996  df-fz 13515  df-fzo 13662  df-fl 13804  df-mod 13882  df-hash 14346  df-word 14529  df-concat 14586  df-substr 14657  df-pfx 14687  df-csh 14804  df-clwwlk 30186  df-clwwlkn 30229

This theorem is referenced by:  eleclclwwlkn  30280  hashecclwwlkn1  30281  umgrhashecclwwlk  30282