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Theorem clwlkclwwlkf1 27788
Description: 𝐹 is a one-to-one function from the nonempty closed walks into the closed walks as words in a simple pseudograph. (Contributed by Alexander van der Vekens, 5-Jul-2018.) (Revised by AV, 3-May-2021.) (Revised by AV, 29-Oct-2022.)
Hypotheses
Ref Expression
clwlkclwwlkf.c 𝐶 = {𝑤 ∈ (ClWalks‘𝐺) ∣ 1 ≤ (♯‘(1st𝑤))}
clwlkclwwlkf.f 𝐹 = (𝑐𝐶 ↦ ((2nd𝑐) prefix ((♯‘(2nd𝑐)) − 1)))
Assertion
Ref Expression
clwlkclwwlkf1 (𝐺 ∈ USPGraph → 𝐹:𝐶1-1→(ClWWalks‘𝐺))
Distinct variable groups:   𝑤,𝐺,𝑐   𝐶,𝑐,𝑤   𝐹,𝑐,𝑤

Proof of Theorem clwlkclwwlkf1
Dummy variables 𝑖 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 clwlkclwwlkf.c . . 3 𝐶 = {𝑤 ∈ (ClWalks‘𝐺) ∣ 1 ≤ (♯‘(1st𝑤))}
2 clwlkclwwlkf.f . . 3 𝐹 = (𝑐𝐶 ↦ ((2nd𝑐) prefix ((♯‘(2nd𝑐)) − 1)))
31, 2clwlkclwwlkf 27786 . 2 (𝐺 ∈ USPGraph → 𝐹:𝐶⟶(ClWWalks‘𝐺))
4 fveq2 6670 . . . . . . . 8 (𝑐 = 𝑥 → (2nd𝑐) = (2nd𝑥))
5 2fveq3 6675 . . . . . . . . 9 (𝑐 = 𝑥 → (♯‘(2nd𝑐)) = (♯‘(2nd𝑥)))
65oveq1d 7171 . . . . . . . 8 (𝑐 = 𝑥 → ((♯‘(2nd𝑐)) − 1) = ((♯‘(2nd𝑥)) − 1))
74, 6oveq12d 7174 . . . . . . 7 (𝑐 = 𝑥 → ((2nd𝑐) prefix ((♯‘(2nd𝑐)) − 1)) = ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)))
8 id 22 . . . . . . 7 (𝑥𝐶𝑥𝐶)
9 ovexd 7191 . . . . . . 7 (𝑥𝐶 → ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) ∈ V)
102, 7, 8, 9fvmptd3 6791 . . . . . 6 (𝑥𝐶 → (𝐹𝑥) = ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)))
11 fveq2 6670 . . . . . . . 8 (𝑐 = 𝑦 → (2nd𝑐) = (2nd𝑦))
12 2fveq3 6675 . . . . . . . . 9 (𝑐 = 𝑦 → (♯‘(2nd𝑐)) = (♯‘(2nd𝑦)))
1312oveq1d 7171 . . . . . . . 8 (𝑐 = 𝑦 → ((♯‘(2nd𝑐)) − 1) = ((♯‘(2nd𝑦)) − 1))
1411, 13oveq12d 7174 . . . . . . 7 (𝑐 = 𝑦 → ((2nd𝑐) prefix ((♯‘(2nd𝑐)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1)))
15 id 22 . . . . . . 7 (𝑦𝐶𝑦𝐶)
16 ovexd 7191 . . . . . . 7 (𝑦𝐶 → ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1)) ∈ V)
172, 14, 15, 16fvmptd3 6791 . . . . . 6 (𝑦𝐶 → (𝐹𝑦) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1)))
1810, 17eqeqan12d 2838 . . . . 5 ((𝑥𝐶𝑦𝐶) → ((𝐹𝑥) = (𝐹𝑦) ↔ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))))
1918adantl 484 . . . 4 ((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) → ((𝐹𝑥) = (𝐹𝑦) ↔ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))))
20 simplrl 775 . . . . . . . 8 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → 𝑥𝐶)
21 simplrr 776 . . . . . . . 8 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → 𝑦𝐶)
22 eqid 2821 . . . . . . . . . . . . . . 15 (1st𝑥) = (1st𝑥)
23 eqid 2821 . . . . . . . . . . . . . . 15 (2nd𝑥) = (2nd𝑥)
241, 22, 23clwlkclwwlkflem 27782 . . . . . . . . . . . . . 14 (𝑥𝐶 → ((1st𝑥)(Walks‘𝐺)(2nd𝑥) ∧ ((2nd𝑥)‘0) = ((2nd𝑥)‘(♯‘(1st𝑥))) ∧ (♯‘(1st𝑥)) ∈ ℕ))
25 wlklenvm1 27403 . . . . . . . . . . . . . . . 16 ((1st𝑥)(Walks‘𝐺)(2nd𝑥) → (♯‘(1st𝑥)) = ((♯‘(2nd𝑥)) − 1))
2625eqcomd 2827 . . . . . . . . . . . . . . 15 ((1st𝑥)(Walks‘𝐺)(2nd𝑥) → ((♯‘(2nd𝑥)) − 1) = (♯‘(1st𝑥)))
27263ad2ant1 1129 . . . . . . . . . . . . . 14 (((1st𝑥)(Walks‘𝐺)(2nd𝑥) ∧ ((2nd𝑥)‘0) = ((2nd𝑥)‘(♯‘(1st𝑥))) ∧ (♯‘(1st𝑥)) ∈ ℕ) → ((♯‘(2nd𝑥)) − 1) = (♯‘(1st𝑥)))
2824, 27syl 17 . . . . . . . . . . . . 13 (𝑥𝐶 → ((♯‘(2nd𝑥)) − 1) = (♯‘(1st𝑥)))
2928adantr 483 . . . . . . . . . . . 12 ((𝑥𝐶𝑦𝐶) → ((♯‘(2nd𝑥)) − 1) = (♯‘(1st𝑥)))
3029oveq2d 7172 . . . . . . . . . . 11 ((𝑥𝐶𝑦𝐶) → ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑥) prefix (♯‘(1st𝑥))))
31 eqid 2821 . . . . . . . . . . . . . . 15 (1st𝑦) = (1st𝑦)
32 eqid 2821 . . . . . . . . . . . . . . 15 (2nd𝑦) = (2nd𝑦)
331, 31, 32clwlkclwwlkflem 27782 . . . . . . . . . . . . . 14 (𝑦𝐶 → ((1st𝑦)(Walks‘𝐺)(2nd𝑦) ∧ ((2nd𝑦)‘0) = ((2nd𝑦)‘(♯‘(1st𝑦))) ∧ (♯‘(1st𝑦)) ∈ ℕ))
34 wlklenvm1 27403 . . . . . . . . . . . . . . . 16 ((1st𝑦)(Walks‘𝐺)(2nd𝑦) → (♯‘(1st𝑦)) = ((♯‘(2nd𝑦)) − 1))
3534eqcomd 2827 . . . . . . . . . . . . . . 15 ((1st𝑦)(Walks‘𝐺)(2nd𝑦) → ((♯‘(2nd𝑦)) − 1) = (♯‘(1st𝑦)))
36353ad2ant1 1129 . . . . . . . . . . . . . 14 (((1st𝑦)(Walks‘𝐺)(2nd𝑦) ∧ ((2nd𝑦)‘0) = ((2nd𝑦)‘(♯‘(1st𝑦))) ∧ (♯‘(1st𝑦)) ∈ ℕ) → ((♯‘(2nd𝑦)) − 1) = (♯‘(1st𝑦)))
3733, 36syl 17 . . . . . . . . . . . . 13 (𝑦𝐶 → ((♯‘(2nd𝑦)) − 1) = (♯‘(1st𝑦)))
3837adantl 484 . . . . . . . . . . . 12 ((𝑥𝐶𝑦𝐶) → ((♯‘(2nd𝑦)) − 1) = (♯‘(1st𝑦)))
3938oveq2d 7172 . . . . . . . . . . 11 ((𝑥𝐶𝑦𝐶) → ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1)) = ((2nd𝑦) prefix (♯‘(1st𝑦))))
4030, 39eqeq12d 2837 . . . . . . . . . 10 ((𝑥𝐶𝑦𝐶) → (((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1)) ↔ ((2nd𝑥) prefix (♯‘(1st𝑥))) = ((2nd𝑦) prefix (♯‘(1st𝑦)))))
4140adantl 484 . . . . . . . . 9 ((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) → (((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1)) ↔ ((2nd𝑥) prefix (♯‘(1st𝑥))) = ((2nd𝑦) prefix (♯‘(1st𝑦)))))
4241biimpa 479 . . . . . . . 8 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → ((2nd𝑥) prefix (♯‘(1st𝑥))) = ((2nd𝑦) prefix (♯‘(1st𝑦))))
4320, 21, 423jca 1124 . . . . . . 7 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → (𝑥𝐶𝑦𝐶 ∧ ((2nd𝑥) prefix (♯‘(1st𝑥))) = ((2nd𝑦) prefix (♯‘(1st𝑦)))))
441, 22, 23, 31, 32clwlkclwwlkf1lem2 27783 . . . . . . 7 ((𝑥𝐶𝑦𝐶 ∧ ((2nd𝑥) prefix (♯‘(1st𝑥))) = ((2nd𝑦) prefix (♯‘(1st𝑦)))) → ((♯‘(1st𝑥)) = (♯‘(1st𝑦)) ∧ ∀𝑖 ∈ (0..^(♯‘(1st𝑥)))((2nd𝑥)‘𝑖) = ((2nd𝑦)‘𝑖)))
45 simpl 485 . . . . . . 7 (((♯‘(1st𝑥)) = (♯‘(1st𝑦)) ∧ ∀𝑖 ∈ (0..^(♯‘(1st𝑥)))((2nd𝑥)‘𝑖) = ((2nd𝑦)‘𝑖)) → (♯‘(1st𝑥)) = (♯‘(1st𝑦)))
4643, 44, 453syl 18 . . . . . 6 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → (♯‘(1st𝑥)) = (♯‘(1st𝑦)))
471, 22, 23, 31, 32clwlkclwwlkf1lem3 27784 . . . . . . 7 ((𝑥𝐶𝑦𝐶 ∧ ((2nd𝑥) prefix (♯‘(1st𝑥))) = ((2nd𝑦) prefix (♯‘(1st𝑦)))) → ∀𝑖 ∈ (0...(♯‘(1st𝑥)))((2nd𝑥)‘𝑖) = ((2nd𝑦)‘𝑖))
4843, 47syl 17 . . . . . 6 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → ∀𝑖 ∈ (0...(♯‘(1st𝑥)))((2nd𝑥)‘𝑖) = ((2nd𝑦)‘𝑖))
49 simpl 485 . . . . . . . . 9 ((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) → 𝐺 ∈ USPGraph)
50 wlkcpr 27410 . . . . . . . . . . . . . 14 (𝑥 ∈ (Walks‘𝐺) ↔ (1st𝑥)(Walks‘𝐺)(2nd𝑥))
5150biimpri 230 . . . . . . . . . . . . 13 ((1st𝑥)(Walks‘𝐺)(2nd𝑥) → 𝑥 ∈ (Walks‘𝐺))
52513ad2ant1 1129 . . . . . . . . . . . 12 (((1st𝑥)(Walks‘𝐺)(2nd𝑥) ∧ ((2nd𝑥)‘0) = ((2nd𝑥)‘(♯‘(1st𝑥))) ∧ (♯‘(1st𝑥)) ∈ ℕ) → 𝑥 ∈ (Walks‘𝐺))
5324, 52syl 17 . . . . . . . . . . 11 (𝑥𝐶𝑥 ∈ (Walks‘𝐺))
54 wlkcpr 27410 . . . . . . . . . . . . . 14 (𝑦 ∈ (Walks‘𝐺) ↔ (1st𝑦)(Walks‘𝐺)(2nd𝑦))
5554biimpri 230 . . . . . . . . . . . . 13 ((1st𝑦)(Walks‘𝐺)(2nd𝑦) → 𝑦 ∈ (Walks‘𝐺))
56553ad2ant1 1129 . . . . . . . . . . . 12 (((1st𝑦)(Walks‘𝐺)(2nd𝑦) ∧ ((2nd𝑦)‘0) = ((2nd𝑦)‘(♯‘(1st𝑦))) ∧ (♯‘(1st𝑦)) ∈ ℕ) → 𝑦 ∈ (Walks‘𝐺))
5733, 56syl 17 . . . . . . . . . . 11 (𝑦𝐶𝑦 ∈ (Walks‘𝐺))
5853, 57anim12i 614 . . . . . . . . . 10 ((𝑥𝐶𝑦𝐶) → (𝑥 ∈ (Walks‘𝐺) ∧ 𝑦 ∈ (Walks‘𝐺)))
5958adantl 484 . . . . . . . . 9 ((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) → (𝑥 ∈ (Walks‘𝐺) ∧ 𝑦 ∈ (Walks‘𝐺)))
60 eqidd 2822 . . . . . . . . 9 ((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) → (♯‘(1st𝑥)) = (♯‘(1st𝑥)))
6149, 59, 603jca 1124 . . . . . . . 8 ((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) → (𝐺 ∈ USPGraph ∧ (𝑥 ∈ (Walks‘𝐺) ∧ 𝑦 ∈ (Walks‘𝐺)) ∧ (♯‘(1st𝑥)) = (♯‘(1st𝑥))))
6261adantr 483 . . . . . . 7 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → (𝐺 ∈ USPGraph ∧ (𝑥 ∈ (Walks‘𝐺) ∧ 𝑦 ∈ (Walks‘𝐺)) ∧ (♯‘(1st𝑥)) = (♯‘(1st𝑥))))
63 uspgr2wlkeq 27427 . . . . . . 7 ((𝐺 ∈ USPGraph ∧ (𝑥 ∈ (Walks‘𝐺) ∧ 𝑦 ∈ (Walks‘𝐺)) ∧ (♯‘(1st𝑥)) = (♯‘(1st𝑥))) → (𝑥 = 𝑦 ↔ ((♯‘(1st𝑥)) = (♯‘(1st𝑦)) ∧ ∀𝑖 ∈ (0...(♯‘(1st𝑥)))((2nd𝑥)‘𝑖) = ((2nd𝑦)‘𝑖))))
6462, 63syl 17 . . . . . 6 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → (𝑥 = 𝑦 ↔ ((♯‘(1st𝑥)) = (♯‘(1st𝑦)) ∧ ∀𝑖 ∈ (0...(♯‘(1st𝑥)))((2nd𝑥)‘𝑖) = ((2nd𝑦)‘𝑖))))
6546, 48, 64mpbir2and 711 . . . . 5 (((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) ∧ ((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1))) → 𝑥 = 𝑦)
6665ex 415 . . . 4 ((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) → (((2nd𝑥) prefix ((♯‘(2nd𝑥)) − 1)) = ((2nd𝑦) prefix ((♯‘(2nd𝑦)) − 1)) → 𝑥 = 𝑦))
6719, 66sylbid 242 . . 3 ((𝐺 ∈ USPGraph ∧ (𝑥𝐶𝑦𝐶)) → ((𝐹𝑥) = (𝐹𝑦) → 𝑥 = 𝑦))
6867ralrimivva 3191 . 2 (𝐺 ∈ USPGraph → ∀𝑥𝐶𝑦𝐶 ((𝐹𝑥) = (𝐹𝑦) → 𝑥 = 𝑦))
69 dff13 7013 . 2 (𝐹:𝐶1-1→(ClWWalks‘𝐺) ↔ (𝐹:𝐶⟶(ClWWalks‘𝐺) ∧ ∀𝑥𝐶𝑦𝐶 ((𝐹𝑥) = (𝐹𝑦) → 𝑥 = 𝑦)))
703, 68, 69sylanbrc 585 1 (𝐺 ∈ USPGraph → 𝐹:𝐶1-1→(ClWWalks‘𝐺))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 208  wa 398  w3a 1083   = wceq 1537  wcel 2114  wral 3138  {crab 3142  Vcvv 3494   class class class wbr 5066  cmpt 5146  wf 6351  1-1wf1 6352  cfv 6355  (class class class)co 7156  1st c1st 7687  2nd c2nd 7688  0cc0 10537  1c1 10538  cle 10676  cmin 10870  cn 11638  ...cfz 12893  ..^cfzo 13034  chash 13691   prefix cpfx 14032  USPGraphcuspgr 26933  Walkscwlks 27378  ClWalkscclwlks 27551  ClWWalkscclwwlk 27759
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-rep 5190  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461  ax-cnex 10593  ax-resscn 10594  ax-1cn 10595  ax-icn 10596  ax-addcl 10597  ax-addrcl 10598  ax-mulcl 10599  ax-mulrcl 10600  ax-mulcom 10601  ax-addass 10602  ax-mulass 10603  ax-distr 10604  ax-i2m1 10605  ax-1ne0 10606  ax-1rid 10607  ax-rnegex 10608  ax-rrecex 10609  ax-cnre 10610  ax-pre-lttri 10611  ax-pre-lttrn 10612  ax-pre-ltadd 10613  ax-pre-mulgt0 10614
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-ifp 1058  df-3or 1084  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-nel 3124  df-ral 3143  df-rex 3144  df-reu 3145  df-rmo 3146  df-rab 3147  df-v 3496  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-pss 3954  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4568  df-pr 4570  df-tp 4572  df-op 4574  df-uni 4839  df-int 4877  df-iun 4921  df-br 5067  df-opab 5129  df-mpt 5147  df-tr 5173  df-id 5460  df-eprel 5465  df-po 5474  df-so 5475  df-fr 5514  df-we 5516  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-pred 6148  df-ord 6194  df-on 6195  df-lim 6196  df-suc 6197  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-f1 6360  df-fo 6361  df-f1o 6362  df-fv 6363  df-riota 7114  df-ov 7159  df-oprab 7160  df-mpo 7161  df-om 7581  df-1st 7689  df-2nd 7690  df-wrecs 7947  df-recs 8008  df-rdg 8046  df-1o 8102  df-2o 8103  df-oadd 8106  df-er 8289  df-map 8408  df-pm 8409  df-en 8510  df-dom 8511  df-sdom 8512  df-fin 8513  df-dju 9330  df-card 9368  df-pnf 10677  df-mnf 10678  df-xr 10679  df-ltxr 10680  df-le 10681  df-sub 10872  df-neg 10873  df-nn 11639  df-2 11701  df-n0 11899  df-xnn0 11969  df-z 11983  df-uz 12245  df-fz 12894  df-fzo 13035  df-hash 13692  df-word 13863  df-lsw 13915  df-substr 14003  df-pfx 14033  df-edg 26833  df-uhgr 26843  df-upgr 26867  df-uspgr 26935  df-wlks 27381  df-clwlks 27552  df-clwwlk 27760
This theorem is referenced by:  clwlkclwwlkf1o  27789
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