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Theorem frgpuplem 19742
Description: Any assignment of the generators to target elements can be extended (uniquely) to a homomorphism from a free monoid to an arbitrary other monoid. (Contributed by Mario Carneiro, 2-Oct-2015.)
Hypotheses
Ref Expression
frgpup.b 𝐵 = (Base‘𝐻)
frgpup.n 𝑁 = (invg𝐻)
frgpup.t 𝑇 = (𝑦𝐼, 𝑧 ∈ 2o ↦ if(𝑧 = ∅, (𝐹𝑦), (𝑁‘(𝐹𝑦))))
frgpup.h (𝜑𝐻 ∈ Grp)
frgpup.i (𝜑𝐼𝑉)
frgpup.a (𝜑𝐹:𝐼𝐵)
frgpup.w 𝑊 = ( I ‘Word (𝐼 × 2o))
frgpup.r = ( ~FG𝐼)
Assertion
Ref Expression
frgpuplem ((𝜑𝐴 𝐶) → (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶)))
Distinct variable groups:   𝑦,𝑧,𝐴   𝑦,𝐹,𝑧   𝑦,𝑁,𝑧   𝑦,𝐵,𝑧   𝜑,𝑦,𝑧   𝑦,𝐼,𝑧
Allowed substitution hints:   𝐶(𝑦,𝑧)   (𝑦,𝑧)   𝑇(𝑦,𝑧)   𝐻(𝑦,𝑧)   𝑉(𝑦,𝑧)   𝑊(𝑦,𝑧)

Proof of Theorem frgpuplem
Dummy variables 𝑎 𝑏 𝑢 𝑣 𝑛 𝑟 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 frgpup.w . . . . . . 7 𝑊 = ( I ‘Word (𝐼 × 2o))
2 frgpup.r . . . . . . 7 = ( ~FG𝐼)
31, 2efgval 19687 . . . . . 6 = {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))}
4 coeq2 5809 . . . . . . . . . . . . 13 (𝑢 = 𝑣 → (𝑇𝑢) = (𝑇𝑣))
54oveq2d 7378 . . . . . . . . . . . 12 (𝑢 = 𝑣 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))
6 eqid 2737 . . . . . . . . . . . 12 {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} = {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}
75, 6eqer 8675 . . . . . . . . . . 11 {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} Er V
87a1i 11 . . . . . . . . . 10 (𝜑 → {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} Er V)
9 ssv 3947 . . . . . . . . . . 11 𝑊 ⊆ V
109a1i 11 . . . . . . . . . 10 (𝜑𝑊 ⊆ V)
118, 10erinxp 8733 . . . . . . . . 9 (𝜑 → ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) Er 𝑊)
12 df-xp 5632 . . . . . . . . . . . . 13 (𝑊 × 𝑊) = {⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)}
1312ineq1i 4157 . . . . . . . . . . . 12 ((𝑊 × 𝑊) ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = ({⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)} ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))})
14 incom 4150 . . . . . . . . . . . 12 ((𝑊 × 𝑊) ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊))
15 inopab 5780 . . . . . . . . . . . 12 ({⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)} ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
1613, 14, 153eqtr3i 2768 . . . . . . . . . . 11 ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
17 vex 3434 . . . . . . . . . . . . . 14 𝑢 ∈ V
18 vex 3434 . . . . . . . . . . . . . 14 𝑣 ∈ V
1917, 18prss 4764 . . . . . . . . . . . . 13 ((𝑢𝑊𝑣𝑊) ↔ {𝑢, 𝑣} ⊆ 𝑊)
2019anbi1i 625 . . . . . . . . . . . 12 (((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))) ↔ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))))
2120opabbii 5153 . . . . . . . . . . 11 {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
2216, 21eqtri 2760 . . . . . . . . . 10 ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
23 ereq1 8646 . . . . . . . . . 10 (({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} → (({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) Er 𝑊 ↔ {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊))
2422, 23ax-mp 5 . . . . . . . . 9 (({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) Er 𝑊 ↔ {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊)
2511, 24sylib 218 . . . . . . . 8 (𝜑 → {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊)
26 simplrl 777 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑥𝑊)
27 fviss 6913 . . . . . . . . . . . . . . 15 ( I ‘Word (𝐼 × 2o)) ⊆ Word (𝐼 × 2o)
281, 27eqsstri 3969 . . . . . . . . . . . . . 14 𝑊 ⊆ Word (𝐼 × 2o)
2928, 26sselid 3920 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑥 ∈ Word (𝐼 × 2o))
30 opelxpi 5663 . . . . . . . . . . . . . . 15 ((𝑎𝐼𝑏 ∈ 2o) → ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o))
3130adantl 481 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o))
32 simprl 771 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑎𝐼)
33 2oconcl 8433 . . . . . . . . . . . . . . . 16 (𝑏 ∈ 2o → (1o𝑏) ∈ 2o)
3433ad2antll 730 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (1o𝑏) ∈ 2o)
3532, 34opelxpd 5665 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨𝑎, (1o𝑏)⟩ ∈ (𝐼 × 2o))
3631, 35s2cld 14828 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o))
37 splcl 14709 . . . . . . . . . . . . 13 ((𝑥 ∈ Word (𝐼 × 2o) ∧ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o)) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ Word (𝐼 × 2o))
3829, 36, 37syl2anc 585 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ Word (𝐼 × 2o))
391efgrcl 19685 . . . . . . . . . . . . . 14 (𝑥𝑊 → (𝐼 ∈ V ∧ 𝑊 = Word (𝐼 × 2o)))
4026, 39syl 17 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐼 ∈ V ∧ 𝑊 = Word (𝐼 × 2o)))
4140simprd 495 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑊 = Word (𝐼 × 2o))
4238, 41eleqtrrd 2840 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊)
43 pfxcl 14635 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ Word (𝐼 × 2o) → (𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o))
4429, 43syl 17 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o))
45 frgpup.b . . . . . . . . . . . . . . . . . . 19 𝐵 = (Base‘𝐻)
46 frgpup.n . . . . . . . . . . . . . . . . . . 19 𝑁 = (invg𝐻)
47 frgpup.t . . . . . . . . . . . . . . . . . . 19 𝑇 = (𝑦𝐼, 𝑧 ∈ 2o ↦ if(𝑧 = ∅, (𝐹𝑦), (𝑁‘(𝐹𝑦))))
48 frgpup.h . . . . . . . . . . . . . . . . . . 19 (𝜑𝐻 ∈ Grp)
49 frgpup.i . . . . . . . . . . . . . . . . . . 19 (𝜑𝐼𝑉)
50 frgpup.a . . . . . . . . . . . . . . . . . . 19 (𝜑𝐹:𝐼𝐵)
5145, 46, 47, 48, 49, 50frgpuptf 19740 . . . . . . . . . . . . . . . . . 18 (𝜑𝑇:(𝐼 × 2o)⟶𝐵)
5251ad2antrr 727 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑇:(𝐼 × 2o)⟶𝐵)
53 ccatco 14792 . . . . . . . . . . . . . . . . 17 (((𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o) ∧ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) = ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)))
5444, 36, 52, 53syl3anc 1374 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) = ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)))
5554oveq2d 7378 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))) = (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))))
5648ad2antrr 727 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝐻 ∈ Grp)
5756grpmndd 18917 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝐻 ∈ Mnd)
58 wrdco 14788 . . . . . . . . . . . . . . . . 17 (((𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵)
5944, 52, 58syl2anc 585 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵)
60 wrdco 14788 . . . . . . . . . . . . . . . . 17 ((⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word 𝐵)
6136, 52, 60syl2anc 585 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word 𝐵)
62 eqid 2737 . . . . . . . . . . . . . . . . 17 (+g𝐻) = (+g𝐻)
6345, 62gsumccat 18804 . . . . . . . . . . . . . . . 16 ((𝐻 ∈ Mnd ∧ (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵 ∧ (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word 𝐵) → (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))) = ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))))
6457, 59, 61, 63syl3anc 1374 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))) = ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))))
6552, 31, 35s2co 14877 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) = ⟨“(𝑇‘⟨𝑎, 𝑏⟩)(𝑇‘⟨𝑎, (1o𝑏)⟩)”⟩)
66 df-ov 7365 . . . . . . . . . . . . . . . . . . . . . 22 (𝑎𝑇𝑏) = (𝑇‘⟨𝑎, 𝑏⟩)
6766a1i 11 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑎𝑇𝑏) = (𝑇‘⟨𝑎, 𝑏⟩))
6866fveq2i 6839 . . . . . . . . . . . . . . . . . . . . . 22 (𝑁‘(𝑎𝑇𝑏)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩))
69 df-ov 7365 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑎(𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)𝑏) = ((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)
70 eqid 2737 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩) = (𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)
7170efgmval 19682 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑎𝐼𝑏 ∈ 2o) → (𝑎(𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)𝑏) = ⟨𝑎, (1o𝑏)⟩)
7269, 71eqtr3id 2786 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝑎𝐼𝑏 ∈ 2o) → ((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩) = ⟨𝑎, (1o𝑏)⟩)
7372adantl 481 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩) = ⟨𝑎, (1o𝑏)⟩)
7473fveq2d 6840 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑇‘⟨𝑎, (1o𝑏)⟩))
7545, 46, 47, 48, 49, 50, 70frgpuptinv 19741 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7630, 75sylan2 594 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7776adantlr 716 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7874, 77eqtr3d 2774 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘⟨𝑎, (1o𝑏)⟩) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7968, 78eqtr4id 2791 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑁‘(𝑎𝑇𝑏)) = (𝑇‘⟨𝑎, (1o𝑏)⟩))
8067, 79s2eqd 14820 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩ = ⟨“(𝑇‘⟨𝑎, 𝑏⟩)(𝑇‘⟨𝑎, (1o𝑏)⟩)”⟩)
8165, 80eqtr4d 2775 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) = ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩)
8281oveq2d 7378 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) = (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩))
83 simprr 773 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑏 ∈ 2o)
8452, 32, 83fovcdmd 7534 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑎𝑇𝑏) ∈ 𝐵)
8545, 46grpinvcl 18958 . . . . . . . . . . . . . . . . . . . 20 ((𝐻 ∈ Grp ∧ (𝑎𝑇𝑏) ∈ 𝐵) → (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵)
8656, 84, 85syl2anc 585 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵)
8745, 62gsumws2 18805 . . . . . . . . . . . . . . . . . . 19 ((𝐻 ∈ Mnd ∧ (𝑎𝑇𝑏) ∈ 𝐵 ∧ (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵) → (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩) = ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))))
8857, 84, 86, 87syl3anc 1374 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩) = ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))))
89 eqid 2737 . . . . . . . . . . . . . . . . . . . 20 (0g𝐻) = (0g𝐻)
9045, 62, 89, 46grprinv 18961 . . . . . . . . . . . . . . . . . . 19 ((𝐻 ∈ Grp ∧ (𝑎𝑇𝑏) ∈ 𝐵) → ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))) = (0g𝐻))
9156, 84, 90syl2anc 585 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))) = (0g𝐻))
9282, 88, 913eqtrd 2776 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) = (0g𝐻))
9392oveq2d 7378 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))) = ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(0g𝐻)))
9445gsumwcl 18802 . . . . . . . . . . . . . . . . . 18 ((𝐻 ∈ Mnd ∧ (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) ∈ 𝐵)
9557, 59, 94syl2anc 585 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) ∈ 𝐵)
9645, 62, 89grprid 18939 . . . . . . . . . . . . . . . . 17 ((𝐻 ∈ Grp ∧ (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) ∈ 𝐵) → ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(0g𝐻)) = (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))))
9756, 95, 96syl2anc 585 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(0g𝐻)) = (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))))
9893, 97eqtrd 2772 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))) = (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))))
9955, 64, 983eqtrrd 2777 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) = (𝐻 Σg (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))))
10099oveq1d 7377 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(𝐻 Σg (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))) = ((𝐻 Σg (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)))(+g𝐻)(𝐻 Σg (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
101 swrdcl 14603 . . . . . . . . . . . . . . . 16 (𝑥 ∈ Word (𝐼 × 2o) → (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o))
10229, 101syl 17 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o))
103 wrdco 14788 . . . . . . . . . . . . . . 15 (((𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) ∈ Word 𝐵)
104102, 52, 103syl2anc 585 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) ∈ Word 𝐵)
10545, 62gsumccat 18804 . . . . . . . . . . . . . 14 ((𝐻 ∈ Mnd ∧ (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵 ∧ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) ∈ Word 𝐵) → (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))) = ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(𝐻 Σg (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
10657, 59, 104, 105syl3anc 1374 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))) = ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(𝐻 Σg (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
107 ccatcl 14531 . . . . . . . . . . . . . . . 16 (((𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o) ∧ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o)) → ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word (𝐼 × 2o))
10844, 36, 107syl2anc 585 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word (𝐼 × 2o))
109 wrdco 14788 . . . . . . . . . . . . . . 15 ((((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ∈ Word 𝐵)
110108, 52, 109syl2anc 585 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ∈ Word 𝐵)
11145, 62gsumccat 18804 . . . . . . . . . . . . . 14 ((𝐻 ∈ Mnd ∧ (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ∈ Word 𝐵 ∧ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) ∈ Word 𝐵) → (𝐻 Σg ((𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))) = ((𝐻 Σg (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)))(+g𝐻)(𝐻 Σg (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
11257, 110, 104, 111syl3anc 1374 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg ((𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))) = ((𝐻 Σg (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)))(+g𝐻)(𝐻 Σg (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
113100, 106, 1123eqtr4d 2782 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))) = (𝐻 Σg ((𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
114 simplrr 778 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑛 ∈ (0...(♯‘𝑥)))
115 lencl 14490 . . . . . . . . . . . . . . . . . . . 20 (𝑥 ∈ Word (𝐼 × 2o) → (♯‘𝑥) ∈ ℕ0)
11629, 115syl 17 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ ℕ0)
117 nn0uz 12821 . . . . . . . . . . . . . . . . . . 19 0 = (ℤ‘0)
118116, 117eleqtrdi 2847 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ (ℤ‘0))
119 eluzfz2 13481 . . . . . . . . . . . . . . . . . 18 ((♯‘𝑥) ∈ (ℤ‘0) → (♯‘𝑥) ∈ (0...(♯‘𝑥)))
120118, 119syl 17 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ (0...(♯‘𝑥)))
121 ccatpfx 14658 . . . . . . . . . . . . . . . . 17 ((𝑥 ∈ Word (𝐼 × 2o) ∧ 𝑛 ∈ (0...(♯‘𝑥)) ∧ (♯‘𝑥) ∈ (0...(♯‘𝑥))) → ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) = (𝑥 prefix (♯‘𝑥)))
12229, 114, 120, 121syl3anc 1374 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) = (𝑥 prefix (♯‘𝑥)))
123 pfxid 14642 . . . . . . . . . . . . . . . . 17 (𝑥 ∈ Word (𝐼 × 2o) → (𝑥 prefix (♯‘𝑥)) = 𝑥)
12429, 123syl 17 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 prefix (♯‘𝑥)) = 𝑥)
125122, 124eqtrd 2772 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) = 𝑥)
126125coeq2d 5813 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))) = (𝑇𝑥))
127 ccatco 14792 . . . . . . . . . . . . . . 15 (((𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o) ∧ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))) = ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
12844, 102, 52, 127syl3anc 1374 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))) = ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
129126, 128eqtr3d 2774 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇𝑥) = ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
130129oveq2d 7378 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
131 splval 14708 . . . . . . . . . . . . . . . 16 ((𝑥𝑊 ∧ (𝑛 ∈ (0...(♯‘𝑥)) ∧ 𝑛 ∈ (0...(♯‘𝑥)) ∧ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o))) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) = (((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))
13226, 114, 114, 36, 131syl13anc 1375 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) = (((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))
133132coeq2d 5813 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)) = (𝑇 ∘ (((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
134 ccatco 14792 . . . . . . . . . . . . . . 15 ((((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word (𝐼 × 2o) ∧ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ (((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))) = ((𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
135108, 102, 52, 134syl3anc 1374 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))) = ((𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
136133, 135eqtrd 2772 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)) = ((𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
137136oveq2d 7378 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))) = (𝐻 Σg ((𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
138113, 130, 1373eqtr4d 2782 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))))
139 vex 3434 . . . . . . . . . . . 12 𝑥 ∈ V
140 ovex 7395 . . . . . . . . . . . 12 (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ V
141 eleq1 2825 . . . . . . . . . . . . . . 15 (𝑢 = 𝑥 → (𝑢𝑊𝑥𝑊))
142 eleq1 2825 . . . . . . . . . . . . . . 15 (𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) → (𝑣𝑊 ↔ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊))
143141, 142bi2anan9 639 . . . . . . . . . . . . . 14 ((𝑢 = 𝑥𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)) → ((𝑢𝑊𝑣𝑊) ↔ (𝑥𝑊 ∧ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊)))
14419, 143bitr3id 285 . . . . . . . . . . . . 13 ((𝑢 = 𝑥𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)) → ({𝑢, 𝑣} ⊆ 𝑊 ↔ (𝑥𝑊 ∧ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊)))
145 coeq2 5809 . . . . . . . . . . . . . . 15 (𝑢 = 𝑥 → (𝑇𝑢) = (𝑇𝑥))
146145oveq2d 7378 . . . . . . . . . . . . . 14 (𝑢 = 𝑥 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑥)))
147 coeq2 5809 . . . . . . . . . . . . . . 15 (𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) → (𝑇𝑣) = (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)))
148147oveq2d 7378 . . . . . . . . . . . . . 14 (𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) → (𝐻 Σg (𝑇𝑣)) = (𝐻 Σg (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))))
149146, 148eqeqan12d 2751 . . . . . . . . . . . . 13 ((𝑢 = 𝑥𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)) → ((𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)) ↔ (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)))))
150144, 149anbi12d 633 . . . . . . . . . . . 12 ((𝑢 = 𝑥𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)) → (({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))) ↔ ((𝑥𝑊 ∧ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊) ∧ (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))))))
151 eqid 2737 . . . . . . . . . . . 12 {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
152139, 140, 150, 151braba 5487 . . . . . . . . . . 11 (𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ↔ ((𝑥𝑊 ∧ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊) ∧ (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)))))
15326, 42, 138, 152syl21anbrc 1346 . . . . . . . . . 10 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))
154153ralrimivva 3181 . . . . . . . . 9 ((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) → ∀𝑎𝐼𝑏 ∈ 2o 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))
155154ralrimivva 3181 . . . . . . . 8 (𝜑 → ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))
1561fvexi 6850 . . . . . . . . . 10 𝑊 ∈ V
157 erex 8663 . . . . . . . . . 10 ({⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊 → (𝑊 ∈ V → {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} ∈ V))
15825, 156, 157mpisyl 21 . . . . . . . . 9 (𝜑 → {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} ∈ V)
159 ereq1 8646 . . . . . . . . . . 11 (𝑟 = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} → (𝑟 Er 𝑊 ↔ {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊))
160 breq 5088 . . . . . . . . . . . . 13 (𝑟 = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} → (𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ↔ 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)))
1611602ralbidv 3202 . . . . . . . . . . . 12 (𝑟 = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} → (∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ↔ ∀𝑎𝐼𝑏 ∈ 2o 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)))
1621612ralbidv 3202 . . . . . . . . . . 11 (𝑟 = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} → (∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ↔ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)))
163159, 162anbi12d 633 . . . . . . . . . 10 (𝑟 = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} → ((𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)) ↔ ({⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))))
164163elabg 3620 . . . . . . . . 9 ({⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} ∈ V → ({⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} ∈ {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))} ↔ ({⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))))
165158, 164syl 17 . . . . . . . 8 (𝜑 → ({⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} ∈ {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))} ↔ ({⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))))
16625, 155, 165mpbir2and 714 . . . . . . 7 (𝜑 → {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} ∈ {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))})
167 intss1 4906 . . . . . . 7 ({⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} ∈ {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))} → {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))} ⊆ {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))})
168166, 167syl 17 . . . . . 6 (𝜑 {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))} ⊆ {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))})
1693, 168eqsstrid 3961 . . . . 5 (𝜑 ⊆ {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))})
170169ssbrd 5129 . . . 4 (𝜑 → (𝐴 𝐶𝐴{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}𝐶))
171170imp 406 . . 3 ((𝜑𝐴 𝐶) → 𝐴{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}𝐶)
1721, 2efger 19688 . . . . . 6 Er 𝑊
173 errel 8648 . . . . . 6 ( Er 𝑊 → Rel )
174172, 173mp1i 13 . . . . 5 (𝜑 → Rel )
175 brrelex12 5678 . . . . 5 ((Rel 𝐴 𝐶) → (𝐴 ∈ V ∧ 𝐶 ∈ V))
176174, 175sylan 581 . . . 4 ((𝜑𝐴 𝐶) → (𝐴 ∈ V ∧ 𝐶 ∈ V))
177 preq12 4680 . . . . . . 7 ((𝑢 = 𝐴𝑣 = 𝐶) → {𝑢, 𝑣} = {𝐴, 𝐶})
178177sseq1d 3954 . . . . . 6 ((𝑢 = 𝐴𝑣 = 𝐶) → ({𝑢, 𝑣} ⊆ 𝑊 ↔ {𝐴, 𝐶} ⊆ 𝑊))
179 coeq2 5809 . . . . . . . 8 (𝑢 = 𝐴 → (𝑇𝑢) = (𝑇𝐴))
180179oveq2d 7378 . . . . . . 7 (𝑢 = 𝐴 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝐴)))
181 coeq2 5809 . . . . . . . 8 (𝑣 = 𝐶 → (𝑇𝑣) = (𝑇𝐶))
182181oveq2d 7378 . . . . . . 7 (𝑣 = 𝐶 → (𝐻 Σg (𝑇𝑣)) = (𝐻 Σg (𝑇𝐶)))
183180, 182eqeqan12d 2751 . . . . . 6 ((𝑢 = 𝐴𝑣 = 𝐶) → ((𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)) ↔ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶))))
184178, 183anbi12d 633 . . . . 5 ((𝑢 = 𝐴𝑣 = 𝐶) → (({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))) ↔ ({𝐴, 𝐶} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶)))))
185184, 151brabga 5484 . . . 4 ((𝐴 ∈ V ∧ 𝐶 ∈ V) → (𝐴{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}𝐶 ↔ ({𝐴, 𝐶} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶)))))
186176, 185syl 17 . . 3 ((𝜑𝐴 𝐶) → (𝐴{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}𝐶 ↔ ({𝐴, 𝐶} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶)))))
187171, 186mpbid 232 . 2 ((𝜑𝐴 𝐶) → ({𝐴, 𝐶} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶))))
188187simprd 495 1 ((𝜑𝐴 𝐶) → (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395   = wceq 1542  wcel 2114  {cab 2715  wral 3052  Vcvv 3430  cdif 3887  cin 3889  wss 3890  c0 4274  ifcif 4467  {cpr 4570  cop 4574  cotp 4576   cint 4890   class class class wbr 5086  {copab 5148   I cid 5520   × cxp 5624  ccom 5630  Rel wrel 5631  wf 6490  cfv 6494  (class class class)co 7362  cmpo 7364  1oc1o 8393  2oc2o 8394   Er wer 8635  0cc0 11033  0cn0 12432  cuz 12783  ...cfz 13456  chash 14287  Word cword 14470   ++ cconcat 14527   substr csubstr 14598   prefix cpfx 14628   splice csplice 14706  ⟨“cs2 14798  Basecbs 17174  +gcplusg 17215  0gc0g 17397   Σg cgsu 17398  Mndcmnd 18697  Grpcgrp 18904  invgcminusg 18905   ~FG cefg 19676
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-rep 5213  ax-sep 5232  ax-nul 5242  ax-pow 5304  ax-pr 5372  ax-un 7684  ax-cnex 11089  ax-resscn 11090  ax-1cn 11091  ax-icn 11092  ax-addcl 11093  ax-addrcl 11094  ax-mulcl 11095  ax-mulrcl 11096  ax-mulcom 11097  ax-addass 11098  ax-mulass 11099  ax-distr 11100  ax-i2m1 11101  ax-1ne0 11102  ax-1rid 11103  ax-rnegex 11104  ax-rrecex 11105  ax-cnre 11106  ax-pre-lttri 11107  ax-pre-lttrn 11108  ax-pre-ltadd 11109  ax-pre-mulgt0 11110
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-nel 3038  df-ral 3053  df-rex 3063  df-rmo 3343  df-reu 3344  df-rab 3391  df-v 3432  df-sbc 3730  df-csb 3839  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-pss 3910  df-nul 4275  df-if 4468  df-pw 4544  df-sn 4569  df-pr 4571  df-op 4575  df-ot 4577  df-uni 4852  df-int 4891  df-iun 4936  df-iin 4937  df-br 5087  df-opab 5149  df-mpt 5168  df-tr 5194  df-id 5521  df-eprel 5526  df-po 5534  df-so 5535  df-fr 5579  df-we 5581  df-xp 5632  df-rel 5633  df-cnv 5634  df-co 5635  df-dm 5636  df-rn 5637  df-res 5638  df-ima 5639  df-pred 6261  df-ord 6322  df-on 6323  df-lim 6324  df-suc 6325  df-iota 6450  df-fun 6496  df-fn 6497  df-f 6498  df-f1 6499  df-fo 6500  df-f1o 6501  df-fv 6502  df-riota 7319  df-ov 7365  df-oprab 7366  df-mpo 7367  df-om 7813  df-1st 7937  df-2nd 7938  df-frecs 8226  df-wrecs 8257  df-recs 8306  df-rdg 8344  df-1o 8400  df-2o 8401  df-er 8638  df-map 8770  df-en 8889  df-dom 8890  df-sdom 8891  df-fin 8892  df-card 9858  df-pnf 11176  df-mnf 11177  df-xr 11178  df-ltxr 11179  df-le 11180  df-sub 11374  df-neg 11375  df-nn 12170  df-2 12239  df-n0 12433  df-z 12520  df-uz 12784  df-fz 13457  df-fzo 13604  df-seq 13959  df-hash 14288  df-word 14471  df-concat 14528  df-s1 14554  df-substr 14599  df-pfx 14629  df-splice 14707  df-s2 14805  df-sets 17129  df-slot 17147  df-ndx 17159  df-base 17175  df-ress 17196  df-plusg 17228  df-0g 17399  df-gsum 17400  df-mgm 18603  df-sgrp 18682  df-mnd 18698  df-submnd 18747  df-grp 18907  df-minusg 18908  df-efg 19679
This theorem is referenced by:  frgpupf  19743
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