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Theorem frgpuplem 19933
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 19878 . . . . . 6 = {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))}
4 coeq2 5833 . . . . . . . . . . . . 13 (𝑢 = 𝑣 → (𝑇𝑢) = (𝑇𝑣))
54oveq2d 7425 . . . . . . . . . . . 12 (𝑢 = 𝑣 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))
6 eqid 2760 . . . . . . . . . . . 12 {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} = {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}
75, 6eqer 8733 . . . . . . . . . . 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 3955 . . . . . . . . . . 11 𝑊 ⊆ V
109a1i 11 . . . . . . . . . 10 (𝜑𝑊 ⊆ V)
118, 10erinxp 8791 . . . . . . . . 9 (𝜑 → ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) Er 𝑊)
12 df-xp 5654 . . . . . . . . . . . . 13 (𝑊 × 𝑊) = {⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)}
1312ineq1i 4162 . . . . . . . . . . . 12 ((𝑊 × 𝑊) ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = ({⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)} ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))})
14 incom 4155 . . . . . . . . . . . 12 ((𝑊 × 𝑊) ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊))
15 inopab 5804 . . . . . . . . . . . 12 ({⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)} ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
1613, 14, 153eqtr3i 2791 . . . . . . . . . . 11 ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
17 vex 3454 . . . . . . . . . . . . . 14 𝑢 ∈ V
18 vex 3454 . . . . . . . . . . . . . 14 𝑣 ∈ V
1917, 18prss 4781 . . . . . . . . . . . . 13 ((𝑢𝑊𝑣𝑊) ↔ {𝑢, 𝑣} ⊆ 𝑊)
2019anbi1i 636 . . . . . . . . . . . 12 (((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))) ↔ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))))
2120opabbii 5172 . . . . . . . . . . 11 {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
2216, 21eqtri 2783 . . . . . . . . . 10 ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
23 ereq1 8704 . . . . . . . . . 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 221 . . . . . . . 8 (𝜑 → {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} Er 𝑊)
26 simplrl 789 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑥𝑊)
27 fviss 6951 . . . . . . . . . . . . . . 15 ( I ‘Word (𝐼 × 2o)) ⊆ Word (𝐼 × 2o)
281, 27eqsstri 3977 . . . . . . . . . . . . . 14 𝑊 ⊆ Word (𝐼 × 2o)
2928, 26sselid 3929 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑥 ∈ Word (𝐼 × 2o))
30 opelxpi 5685 . . . . . . . . . . . . . . 15 ((𝑎𝐼𝑏 ∈ 2o) → ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o))
3130adantl 487 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o))
32 simprl 783 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑎𝐼)
33 2oconcl 8490 . . . . . . . . . . . . . . . 16 (𝑏 ∈ 2o → (1o𝑏) ∈ 2o)
3433ad2antll 742 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (1o𝑏) ∈ 2o)
3532, 34opelxpd 5687 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨𝑎, (1o𝑏)⟩ ∈ (𝐼 × 2o))
3631, 35s2cld 14975 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o))
37 splcl 14854 . . . . . . . . . . . . 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 596 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ Word (𝐼 × 2o))
391efgrcl 19876 . . . . . . . . . . . . . 14 (𝑥𝑊 → (𝐼 ∈ V ∧ 𝑊 = Word (𝐼 × 2o)))
4026, 39syl 18 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐼 ∈ V ∧ 𝑊 = Word (𝐼 × 2o)))
4140simprd 501 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑊 = Word (𝐼 × 2o))
4238, 41eleqtrrd 2863 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊)
43 pfxcl 14780 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ Word (𝐼 × 2o) → (𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o))
4429, 43syl 18 . . . . . . . . . . . . . . . . 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 19931 . . . . . . . . . . . . . . . . . 18 (𝜑𝑇:(𝐼 × 2o)⟶𝐵)
5251ad2antrr 739 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑇:(𝐼 × 2o)⟶𝐵)
53 ccatco 14939 . . . . . . . . . . . . . . . . 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 1398 . . . . . . . . . . . . . . . 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 7425 . . . . . . . . . . . . . . 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 739 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝐻 ∈ Grp)
5756grpmndd 19104 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝐻 ∈ Mnd)
58 wrdco 14935 . . . . . . . . . . . . . . . . 17 (((𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵)
5944, 52, 58syl2anc 596 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵)
60 wrdco 14935 . . . . . . . . . . . . . . . . 17 ((⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word 𝐵)
6136, 52, 60syl2anc 596 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word 𝐵)
62 eqid 2760 . . . . . . . . . . . . . . . . 17 (+g𝐻) = (+g𝐻)
6345, 62gsumccat 18984 . . . . . . . . . . . . . . . 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 1398 . . . . . . . . . . . . . . 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 15024 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) = ⟨“(𝑇‘⟨𝑎, 𝑏⟩)(𝑇‘⟨𝑎, (1o𝑏)⟩)”⟩)
66 df-ov 7412 . . . . . . . . . . . . . . . . . . . . . 22 (𝑎𝑇𝑏) = (𝑇‘⟨𝑎, 𝑏⟩)
6766a1i 11 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑎𝑇𝑏) = (𝑇‘⟨𝑎, 𝑏⟩))
6866fveq2i 6877 . . . . . . . . . . . . . . . . . . . . . 22 (𝑁‘(𝑎𝑇𝑏)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩))
69 df-ov 7412 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑎(𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)𝑏) = ((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)
70 eqid 2760 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩) = (𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)
7170efgmval 19873 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑎𝐼𝑏 ∈ 2o) → (𝑎(𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)𝑏) = ⟨𝑎, (1o𝑏)⟩)
7269, 71eqtr3id 2809 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝑎𝐼𝑏 ∈ 2o) → ((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩) = ⟨𝑎, (1o𝑏)⟩)
7372adantl 487 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩) = ⟨𝑎, (1o𝑏)⟩)
7473fveq2d 6878 . . . . . . . . . . . . . . . . . . . . . . 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 19932 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7630, 75sylan2 605 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7776adantlr 728 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7874, 77eqtr3d 2797 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘⟨𝑎, (1o𝑏)⟩) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7968, 78eqtr4id 2814 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑁‘(𝑎𝑇𝑏)) = (𝑇‘⟨𝑎, (1o𝑏)⟩))
8067, 79s2eqd 14967 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩ = ⟨“(𝑇‘⟨𝑎, 𝑏⟩)(𝑇‘⟨𝑎, (1o𝑏)⟩)”⟩)
8165, 80eqtr4d 2798 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) = ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩)
8281oveq2d 7425 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) = (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩))
83 simprr 785 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑏 ∈ 2o)
8452, 32, 83fovcdmd 7582 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑎𝑇𝑏) ∈ 𝐵)
8545, 46grpinvcl 19145 . . . . . . . . . . . . . . . . . . . 20 ((𝐻 ∈ Grp ∧ (𝑎𝑇𝑏) ∈ 𝐵) → (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵)
8656, 84, 85syl2anc 596 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵)
8745, 62gsumws2 18985 . . . . . . . . . . . . . . . . . . 19 ((𝐻 ∈ Mnd ∧ (𝑎𝑇𝑏) ∈ 𝐵 ∧ (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵) → (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩) = ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))))
8857, 84, 86, 87syl3anc 1398 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩) = ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))))
89 eqid 2760 . . . . . . . . . . . . . . . . . . . 20 (0g𝐻) = (0g𝐻)
9045, 62, 89, 46grprinv 19148 . . . . . . . . . . . . . . . . . . 19 ((𝐻 ∈ Grp ∧ (𝑎𝑇𝑏) ∈ 𝐵) → ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))) = (0g𝐻))
9156, 84, 90syl2anc 596 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))) = (0g𝐻))
9282, 88, 913eqtrd 2799 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) = (0g𝐻))
9392oveq2d 7425 . . . . . . . . . . . . . . . 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 18982 . . . . . . . . . . . . . . . . . 18 ((𝐻 ∈ Mnd ∧ (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) ∈ 𝐵)
9557, 59, 94syl2anc 596 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) ∈ 𝐵)
9645, 62, 89grprid 19126 . . . . . . . . . . . . . . . . 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 596 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(0g𝐻)) = (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))))
9893, 97eqtrd 2795 . . . . . . . . . . . . . . 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 2800 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) = (𝐻 Σg (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))))
10099oveq1d 7424 . . . . . . . . . . . . 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 14746 . . . . . . . . . . . . . . . 16 (𝑥 ∈ Word (𝐼 × 2o) → (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o))
10229, 101syl 18 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o))
103 wrdco 14935 . . . . . . . . . . . . . . 15 (((𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) ∈ Word 𝐵)
104102, 52, 103syl2anc 596 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) ∈ Word 𝐵)
10545, 62gsumccat 18984 . . . . . . . . . . . . . 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 1398 . . . . . . . . . . . . 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 14672 . . . . . . . . . . . . . . . 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 596 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word (𝐼 × 2o))
109 wrdco 14935 . . . . . . . . . . . . . . 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 596 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ∈ Word 𝐵)
11145, 62gsumccat 18984 . . . . . . . . . . . . . 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 1398 . . . . . . . . . . . . 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 2805 . . . . . . . . . . . 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 790 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑛 ∈ (0...(♯‘𝑥)))
115 lencl 14631 . . . . . . . . . . . . . . . . . . . 20 (𝑥 ∈ Word (𝐼 × 2o) → (♯‘𝑥) ∈ ℕ0)
11629, 115syl 18 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ ℕ0)
117 nn0uz 12958 . . . . . . . . . . . . . . . . . . 19 0 = (ℤ‘0)
118116, 117eleqtrdi 2870 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ (ℤ‘0))
119 eluzfz2 13619 . . . . . . . . . . . . . . . . . 18 ((♯‘𝑥) ∈ (ℤ‘0) → (♯‘𝑥) ∈ (0...(♯‘𝑥)))
120118, 119syl 18 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ (0...(♯‘𝑥)))
121 ccatpfx 14803 . . . . . . . . . . . . . . . . 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 1398 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) = (𝑥 prefix (♯‘𝑥)))
123 pfxid 14787 . . . . . . . . . . . . . . . . 17 (𝑥 ∈ Word (𝐼 × 2o) → (𝑥 prefix (♯‘𝑥)) = 𝑥)
12429, 123syl 18 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 prefix (♯‘𝑥)) = 𝑥)
125122, 124eqtrd 2795 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) = 𝑥)
126125coeq2d 5837 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))) = (𝑇𝑥))
127 ccatco 14939 . . . . . . . . . . . . . . 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 1398 . . . . . . . . . . . . . 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 2797 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇𝑥) = ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
130129oveq2d 7425 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
131 splval 14853 . . . . . . . . . . . . . . . 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 1399 . . . . . . . . . . . . . . 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 5837 . . . . . . . . . . . . . 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 14939 . . . . . . . . . . . . . . 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 1398 . . . . . . . . . . . . . 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 2795 . . . . . . . . . . . . 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 7425 . . . . . . . . . . . 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 2805 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))))
139 vex 3454 . . . . . . . . . . . 12 𝑥 ∈ V
140 ovex 7442 . . . . . . . . . . . 12 (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ V
141 eleq1 2848 . . . . . . . . . . . . . . 15 (𝑢 = 𝑥 → (𝑢𝑊𝑥𝑊))
142 eleq1 2848 . . . . . . . . . . . . . . 15 (𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) → (𝑣𝑊 ↔ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊))
143141, 142bi2anan9 650 . . . . . . . . . . . . . 14 ((𝑢 = 𝑥𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)) → ((𝑢𝑊𝑣𝑊) ↔ (𝑥𝑊 ∧ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊)))
14419, 143bitr3id 288 . . . . . . . . . . . . 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 5833 . . . . . . . . . . . . . . 15 (𝑢 = 𝑥 → (𝑇𝑢) = (𝑇𝑥))
146145oveq2d 7425 . . . . . . . . . . . . . 14 (𝑢 = 𝑥 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑥)))
147 coeq2 5833 . . . . . . . . . . . . . . 15 (𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) → (𝑇𝑣) = (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)))
148147oveq2d 7425 . . . . . . . . . . . . . 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 2774 . . . . . . . . . . . . 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 644 . . . . . . . . . . . 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 2760 . . . . . . . . . . . 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 5508 . . . . . . . . . . 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 1363 . . . . . . . . . 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 3205 . . . . . . . . 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 3205 . . . . . . . 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 6888 . . . . . . . . . 10 𝑊 ∈ V
157 erex 8721 . . . . . . . . . 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 22 . . . . . . . . 9 (𝜑 → {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} ∈ V)
159 ereq1 8704 . . . . . . . . . . 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 5105 . . . . . . . . . . . . 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 3226 . . . . . . . . . . . 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 3226 . . . . . . . . . . 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 644 . . . . . . . . . 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 3630 . . . . . . . . 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 18 . . . . . . . 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 726 . . . . . . 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 4923 . . . . . . 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 18 . . . . . 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 3969 . . . . 5 (𝜑 ⊆ {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))})
170169ssbrd 5148 . . . 4 (𝜑 → (𝐴 𝐶𝐴{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}𝐶))
171170imp 412 . . 3 ((𝜑𝐴 𝐶) → 𝐴{⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}𝐶)
1721, 2efger 19879 . . . . . 6 Er 𝑊
173 errel 8706 . . . . . 6 ( Er 𝑊 → Rel )
174172, 173mp1i 14 . . . . 5 (𝜑 → Rel )
175 brrelex12 5700 . . . . 5 ((Rel 𝐴 𝐶) → (𝐴 ∈ V ∧ 𝐶 ∈ V))
176174, 175sylan 592 . . . 4 ((𝜑𝐴 𝐶) → (𝐴 ∈ V ∧ 𝐶 ∈ V))
177 preq12 4696 . . . . . . 7 ((𝑢 = 𝐴𝑣 = 𝐶) → {𝑢, 𝑣} = {𝐴, 𝐶})
178177sseq1d 3962 . . . . . 6 ((𝑢 = 𝐴𝑣 = 𝐶) → ({𝑢, 𝑣} ⊆ 𝑊 ↔ {𝐴, 𝐶} ⊆ 𝑊))
179 coeq2 5833 . . . . . . . 8 (𝑢 = 𝐴 → (𝑇𝑢) = (𝑇𝐴))
180179oveq2d 7425 . . . . . . 7 (𝑢 = 𝐴 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝐴)))
181 coeq2 5833 . . . . . . . 8 (𝑣 = 𝐶 → (𝑇𝑣) = (𝑇𝐶))
182181oveq2d 7425 . . . . . . 7 (𝑣 = 𝐶 → (𝐻 Σg (𝑇𝑣)) = (𝐻 Σg (𝑇𝐶)))
183180, 182eqeqan12d 2774 . . . . . 6 ((𝑢 = 𝐴𝑣 = 𝐶) → ((𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)) ↔ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶))))
184178, 183anbi12d 644 . . . . 5 ((𝑢 = 𝐴𝑣 = 𝐶) → (({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))) ↔ ({𝐴, 𝐶} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶)))))
185184, 151brabga 5505 . . . 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 18 . . 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 235 . 2 ((𝜑𝐴 𝐶) → ({𝐴, 𝐶} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶))))
188187simprd 501 1 ((𝜑𝐴 𝐶) → (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶)))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wb 209  wa 401   = wceq 1570  wcel 2145  {cab 2738  wral 3076  Vcvv 3450  cdif 3896  cin 3898  wss 3899  c0 4279  ifcif 4482  {cpr 4586  cop 4590  cotp 4592   cint 4907   class class class wbr 5103  {copab 5167   I cid 5542   × cxp 5646  ccom 5652  Rel wrel 5653  wf 6524  cfv 6528  (class class class)co 7409  cmpo 7411  1oc1o 8448  2oc2o 8449   Er wer 8693  0cc0 11157  0cn0 12561  cuz 12920  ...cfz 13594  chash 14427  Word cword 14611   ++ cconcat 14668   substr csubstr 14741   prefix cpfx 14773   splice csplice 14851  ⟨“cs2 14945  Basecbs 17334  +gcplusg 17375  0gc0g 17557   Σg cgsu 17558  Mndcmnd 18870  Grpcgrp 19091  invgcminusg 19092   ~FG cefg 19867
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2732  ax-rep 5232  ax-sep 5249  ax-nul 5260  ax-pow 5327  ax-pr 5391  ax-un 7735  ax-cnex 11213  ax-resscn 11214  ax-1cn 11215  ax-icn 11216  ax-addcl 11217  ax-addrcl 11218  ax-mulcl 11219  ax-mulrcl 11220  ax-mulcom 11221  ax-addass 11222  ax-mulass 11223  ax-distr 11224  ax-i2m1 11225  ax-1ne0 11226  ax-1rid 11227  ax-rnegex 11228  ax-rrecex 11229  ax-cnre 11230  ax-pre-lttri 11231  ax-pre-lttrn 11232  ax-pre-ltadd 11233  ax-pre-mulgt0 11234
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ne 2956  df-nel 3062  df-ral 3077  df-rex 3087  df-rmo 3365  df-reu 3366  df-rab 3413  df-v 3452  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-pss 3919  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-ot 4593  df-uni 4868  df-int 4908  df-iun 4953  df-iin 4954  df-br 5104  df-opab 5168  df-mpt 5187  df-tr 5213  df-id 5543  df-eprel 5548  df-po 5556  df-so 5557  df-fr 5601  df-we 5603  df-xp 5654  df-rel 5655  df-cnv 5656  df-co 5657  df-dm 5658  df-rn 5659  df-res 5660  df-ima 5661  df-pred 6294  df-ord 6355  df-on 6356  df-lim 6357  df-suc 6358  df-iota 6484  df-fun 6530  df-fn 6531  df-f 6532  df-f1 6533  df-fo 6534  df-f1o 6535  df-fv 6536  df-riota 7366  df-ov 7412  df-oprab 7413  df-mpo 7414  df-om 7862  df-1st 7985  df-2nd 7986  df-frecs 8278  df-wrecs 8309  df-recs 8358  df-rdg 8397  df-1o 8455  df-2o 8456  df-er 8696  df-map 8828  df-en 8953  df-dom 8954  df-sdom 8955  df-fin 8956  df-card 9977  df-pnf 11302  df-mnf 11303  df-xr 11304  df-ltxr 11305  df-le 11306  df-sub 11500  df-neg 11501  df-nn 12291  df-2 12360  df-n0 12562  df-z 12649  df-uz 12921  df-fz 13595  df-fzo 13743  df-seq 14099  df-hash 14428  df-word 14612  df-concat 14669  df-s1 14696  df-substr 14742  df-pfx 14774  df-splice 14852  df-s2 14952  df-sets 17289  df-slot 17307  df-ndx 17319  df-base 17335  df-ress 17356  df-plusg 17388  df-0g 17559  df-gsum 17560  df-mgm 18763  df-sgrp 18855  df-mnd 18871  df-submnd 18926  df-grp 19094  df-minusg 19095  df-efg 19870
This theorem is used by:  frgpupf  19934
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