Theorem numclwwlkovgelim 26616

Description: Properties of an element of the value of operation 𝐺. (Contributed by Alexander van der Vekens, 24-Sep-2018.)

Hypotheses

Ref	Expression
numclwwlk.c	⊢ 𝐶 = (𝑛 ∈ ℕ0 ↦ ((𝑉 ClWWalksN 𝐸)‘𝑛))
numclwwlk.f	⊢ 𝐹 = (𝑣 ∈ 𝑉, 𝑛 ∈ ℕ0 ↦ {𝑤 ∈ (𝐶‘𝑛) ∣ (𝑤‘0) = 𝑣})
numclwwlk.g	⊢ 𝐺 = (𝑣 ∈ 𝑉, 𝑛 ∈ (ℤ≥‘2) ↦ {𝑤 ∈ (𝐶‘𝑛) ∣ ((𝑤‘0) = 𝑣 ∧ (𝑤‘(𝑛 − 2)) = (𝑤‘0))})

Assertion

Ref	Expression
numclwwlkovgelim	⊢ ((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ (𝑋𝐺𝑁) → ((𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁) ∧ ((𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0)))))

Distinct variable groups:   𝑛,𝐸   𝑛,𝑁   𝑛,𝑉   𝑤,𝐶   𝑤,𝑁   𝐶,𝑛,𝑣,𝑤   𝑣,𝑁   𝑛,𝑋,𝑣,𝑤   𝑣,𝑉   𝑤,𝐸   𝑤,𝑉   𝑤,𝐹   𝑤,𝑃

Allowed substitution hints:   𝑃(𝑣,𝑛)   𝐸(𝑣)   𝐹(𝑣,𝑛)   𝐺(𝑤,𝑣,𝑛)

Proof of Theorem numclwwlkovgelim

Dummy variable 𝑖 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		numclwwlk.c	. . . 4 ⊢ 𝐶 = (𝑛 ∈ ℕ0 ↦ ((𝑉 ClWWalksN 𝐸)‘𝑛))
2		numclwwlk.f	. . . 4 ⊢ 𝐹 = (𝑣 ∈ 𝑉, 𝑛 ∈ ℕ0 ↦ {𝑤 ∈ (𝐶‘𝑛) ∣ (𝑤‘0) = 𝑣})
3		numclwwlk.g	. . . 4 ⊢ 𝐺 = (𝑣 ∈ 𝑉, 𝑛 ∈ (ℤ≥‘2) ↦ {𝑤 ∈ (𝐶‘𝑛) ∣ ((𝑤‘0) = 𝑣 ∧ (𝑤‘(𝑛 − 2)) = (𝑤‘0))})
4	1, 2, 3	numclwwlkovgel 26615	. . 3 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ (𝑋𝐺𝑁) ↔ (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ∧ (𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0))))
5	4	3adant1 1072	. 2 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ (𝑋𝐺𝑁) ↔ (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ∧ (𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0))))
6		usgrav 25867	. . . . . . . . . . . . 13 ⊢ (𝑉 USGrph 𝐸 → (𝑉 ∈ V ∧ 𝐸 ∈ V))
7		eluzge2nn0 11603	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ (ℤ≥‘2) → 𝑁 ∈ ℕ0)
8	6, 7	anim12i 588	. . . . . . . . . . . 12 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → ((𝑉 ∈ V ∧ 𝐸 ∈ V) ∧ 𝑁 ∈ ℕ0))
9		df-3an 1033	. . . . . . . . . . . 12 ⊢ ((𝑉 ∈ V ∧ 𝐸 ∈ V ∧ 𝑁 ∈ ℕ0) ↔ ((𝑉 ∈ V ∧ 𝐸 ∈ V) ∧ 𝑁 ∈ ℕ0))
10	8, 9	sylibr 223	. . . . . . . . . . 11 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑉 ∈ V ∧ 𝐸 ∈ V ∧ 𝑁 ∈ ℕ0))
11		isclwwlkn 26297	. . . . . . . . . . 11 ⊢ ((𝑉 ∈ V ∧ 𝐸 ∈ V ∧ 𝑁 ∈ ℕ0) → (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ↔ (𝑃 ∈ (𝑉 ClWWalks 𝐸) ∧ (#‘𝑃) = 𝑁)))
12	10, 11	syl 17	. . . . . . . . . 10 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ↔ (𝑃 ∈ (𝑉 ClWWalks 𝐸) ∧ (#‘𝑃) = 𝑁)))
13		isclwwlk 26296	. . . . . . . . . . . . 13 ⊢ ((𝑉 ∈ V ∧ 𝐸 ∈ V) → (𝑃 ∈ (𝑉 ClWWalks 𝐸) ↔ (𝑃 ∈ Word 𝑉 ∧ ∀𝑖 ∈ (0..^((#‘𝑃) − 1)){(𝑃‘𝑖), (𝑃‘(𝑖 + 1))} ∈ ran 𝐸 ∧ {( lastS ‘𝑃), (𝑃‘0)} ∈ ran 𝐸)))
14	6, 13	syl 17	. . . . . . . . . . . 12 ⊢ (𝑉 USGrph 𝐸 → (𝑃 ∈ (𝑉 ClWWalks 𝐸) ↔ (𝑃 ∈ Word 𝑉 ∧ ∀𝑖 ∈ (0..^((#‘𝑃) − 1)){(𝑃‘𝑖), (𝑃‘(𝑖 + 1))} ∈ ran 𝐸 ∧ {( lastS ‘𝑃), (𝑃‘0)} ∈ ran 𝐸)))
15	14	adantr 480	. . . . . . . . . . 11 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ (𝑉 ClWWalks 𝐸) ↔ (𝑃 ∈ Word 𝑉 ∧ ∀𝑖 ∈ (0..^((#‘𝑃) − 1)){(𝑃‘𝑖), (𝑃‘(𝑖 + 1))} ∈ ran 𝐸 ∧ {( lastS ‘𝑃), (𝑃‘0)} ∈ ran 𝐸)))
16	15	anbi1d 737	. . . . . . . . . 10 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → ((𝑃 ∈ (𝑉 ClWWalks 𝐸) ∧ (#‘𝑃) = 𝑁) ↔ ((𝑃 ∈ Word 𝑉 ∧ ∀𝑖 ∈ (0..^((#‘𝑃) − 1)){(𝑃‘𝑖), (𝑃‘(𝑖 + 1))} ∈ ran 𝐸 ∧ {( lastS ‘𝑃), (𝑃‘0)} ∈ ran 𝐸) ∧ (#‘𝑃) = 𝑁)))
17	12, 16	bitrd 267	. . . . . . . . 9 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ↔ ((𝑃 ∈ Word 𝑉 ∧ ∀𝑖 ∈ (0..^((#‘𝑃) − 1)){(𝑃‘𝑖), (𝑃‘(𝑖 + 1))} ∈ ran 𝐸 ∧ {( lastS ‘𝑃), (𝑃‘0)} ∈ ran 𝐸) ∧ (#‘𝑃) = 𝑁)))
18		simp1 1054	. . . . . . . . . . 11 ⊢ ((𝑃 ∈ Word 𝑉 ∧ ∀𝑖 ∈ (0..^((#‘𝑃) − 1)){(𝑃‘𝑖), (𝑃‘(𝑖 + 1))} ∈ ran 𝐸 ∧ {( lastS ‘𝑃), (𝑃‘0)} ∈ ran 𝐸) → 𝑃 ∈ Word 𝑉)
19	18	a1i 11	. . . . . . . . . 10 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → ((𝑃 ∈ Word 𝑉 ∧ ∀𝑖 ∈ (0..^((#‘𝑃) − 1)){(𝑃‘𝑖), (𝑃‘(𝑖 + 1))} ∈ ran 𝐸 ∧ {( lastS ‘𝑃), (𝑃‘0)} ∈ ran 𝐸) → 𝑃 ∈ Word 𝑉))
20	19	anim1d 586	. . . . . . . . 9 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → (((𝑃 ∈ Word 𝑉 ∧ ∀𝑖 ∈ (0..^((#‘𝑃) − 1)){(𝑃‘𝑖), (𝑃‘(𝑖 + 1))} ∈ ran 𝐸 ∧ {( lastS ‘𝑃), (𝑃‘0)} ∈ ran 𝐸) ∧ (#‘𝑃) = 𝑁) → (𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁)))
21	17, 20	sylbid 229	. . . . . . . 8 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) → (𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁)))
22	21	3adant2 1073	. . . . . . 7 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) → (𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁)))
23	22	com12 32	. . . . . 6 ⊢ (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) → ((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁)))
24	23	3ad2ant1 1075	. . . . 5 ⊢ ((𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ∧ (𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0)) → ((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁)))
25	24	impcom 445	. . . 4 ⊢ (((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) ∧ (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ∧ (𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0))) → (𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁))
26		3simpc 1053	. . . . 5 ⊢ ((𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ∧ (𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0)) → ((𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0)))
27	26	adantl 481	. . . 4 ⊢ (((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) ∧ (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ∧ (𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0))) → ((𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0)))
28	25, 27	jca 553	. . 3 ⊢ (((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) ∧ (𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ∧ (𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0))) → ((𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁) ∧ ((𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0))))
29	28	ex 449	. 2 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → ((𝑃 ∈ ((𝑉 ClWWalksN 𝐸)‘𝑁) ∧ (𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0)) → ((𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁) ∧ ((𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0)))))
30	5, 29	sylbid 229	1 ⊢ ((𝑉 USGrph 𝐸 ∧ 𝑋 ∈ 𝑉 ∧ 𝑁 ∈ (ℤ≥‘2)) → (𝑃 ∈ (𝑋𝐺𝑁) → ((𝑃 ∈ Word 𝑉 ∧ (#‘𝑃) = 𝑁) ∧ ((𝑃‘0) = 𝑋 ∧ (𝑃‘(𝑁 − 2)) = (𝑃‘0)))))

Syntax hints:   → wi 4   ↔ wb 195   ∧ wa 383   ∧ w3a 1031   = wceq 1475   ∈ wcel 1977  ∀wral 2896  {crab 2900  Vcvv 3173  {cpr 4127   class class class wbr 4583   ↦ cmpt 4643  ran crn 5039  ‘cfv 5804  (class class class)co 6549   ↦ cmpt2 6551  0cc0 9815  1c1 9816   + caddc 9818   − cmin 10145  2c2 10947  ℕ₀cn0 11169  ℤ_≥cuz 11563  ..^cfzo 12334  #chash 12979  Word cword 13146   lastS clsw 13147   USGrph cusg 25859   ClWWalks cclwwlk 26276   ClWWalksN cclwwlkn 26277

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-int 4411  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-1st 7059  df-2nd 7060  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-er 7629  df-map 7746  df-pm 7747  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-card 8648  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-nn 10898  df-2 10956  df-n0 11170  df-z 11255  df-uz 11564  df-fz 12198  df-fzo 12335  df-hash 12980  df-word 13154  df-usgra 25862  df-clwwlk 26279  df-clwwlkn 26280

This theorem is referenced by:  numclwlk1lem2f1  26621