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Theorem frgpuplem 19686
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 19631 . . . . . 6 = {𝑟 ∣ (𝑟 Er 𝑊 ∧ ∀𝑥𝑊𝑛 ∈ (0...(♯‘𝑥))∀𝑎𝐼𝑏 ∈ 2o 𝑥𝑟(𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))}
4 coeq2 5812 . . . . . . . . . . . . 13 (𝑢 = 𝑣 → (𝑇𝑢) = (𝑇𝑣))
54oveq2d 7385 . . . . . . . . . . . 12 (𝑢 = 𝑣 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))
6 eqid 2729 . . . . . . . . . . . 12 {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} = {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}
75, 6eqer 8684 . . . . . . . . . . 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 3968 . . . . . . . . . . 11 𝑊 ⊆ V
109a1i 11 . . . . . . . . . 10 (𝜑𝑊 ⊆ V)
118, 10erinxp 8741 . . . . . . . . 9 (𝜑 → ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) Er 𝑊)
12 df-xp 5637 . . . . . . . . . . . . 13 (𝑊 × 𝑊) = {⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)}
1312ineq1i 4175 . . . . . . . . . . . 12 ((𝑊 × 𝑊) ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = ({⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)} ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))})
14 incom 4168 . . . . . . . . . . . 12 ((𝑊 × 𝑊) ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊))
15 inopab 5783 . . . . . . . . . . . 12 ({⟨𝑢, 𝑣⟩ ∣ (𝑢𝑊𝑣𝑊)} ∩ {⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))}) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
1613, 14, 153eqtr3i 2760 . . . . . . . . . . 11 ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) = {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
17 vex 3448 . . . . . . . . . . . . . 14 𝑢 ∈ V
18 vex 3448 . . . . . . . . . . . . . 14 𝑣 ∈ V
1917, 18prss 4780 . . . . . . . . . . . . 13 ((𝑢𝑊𝑣𝑊) ↔ {𝑢, 𝑣} ⊆ 𝑊)
2019anbi1i 624 . . . . . . . . . . . 12 (((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))) ↔ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))))
2120opabbii 5169 . . . . . . . . . . 11 {⟨𝑢, 𝑣⟩ ∣ ((𝑢𝑊𝑣𝑊) ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))} = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
2216, 21eqtri 2752 . . . . . . . . . 10 ({⟨𝑢, 𝑣⟩ ∣ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))} ∩ (𝑊 × 𝑊)) = {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))}
23 ereq1 8655 . . . . . . . . . 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 776 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑥𝑊)
27 fviss 6920 . . . . . . . . . . . . . . 15 ( I ‘Word (𝐼 × 2o)) ⊆ Word (𝐼 × 2o)
281, 27eqsstri 3990 . . . . . . . . . . . . . 14 𝑊 ⊆ Word (𝐼 × 2o)
2928, 26sselid 3941 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑥 ∈ Word (𝐼 × 2o))
30 opelxpi 5668 . . . . . . . . . . . . . . 15 ((𝑎𝐼𝑏 ∈ 2o) → ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o))
3130adantl 481 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o))
32 simprl 770 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑎𝐼)
33 2oconcl 8444 . . . . . . . . . . . . . . . 16 (𝑏 ∈ 2o → (1o𝑏) ∈ 2o)
3433ad2antll 729 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (1o𝑏) ∈ 2o)
3532, 34opelxpd 5670 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨𝑎, (1o𝑏)⟩ ∈ (𝐼 × 2o))
3631, 35s2cld 14813 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o))
37 splcl 14693 . . . . . . . . . . . . 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 584 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ Word (𝐼 × 2o))
391efgrcl 19629 . . . . . . . . . . . . . 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 2831 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊)
43 pfxcl 14618 . . . . . . . . . . . . . . . . . 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 19684 . . . . . . . . . . . . . . . . . 18 (𝜑𝑇:(𝐼 × 2o)⟶𝐵)
5251ad2antrr 726 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑇:(𝐼 × 2o)⟶𝐵)
53 ccatco 14777 . . . . . . . . . . . . . . . . 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 1373 . . . . . . . . . . . . . . . 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 7385 . . . . . . . . . . . . . . 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 726 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝐻 ∈ Grp)
5756grpmndd 18860 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝐻 ∈ Mnd)
58 wrdco 14773 . . . . . . . . . . . . . . . . 17 (((𝑥 prefix 𝑛) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵)
5944, 52, 58syl2anc 584 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵)
60 wrdco 14773 . . . . . . . . . . . . . . . . 17 ((⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩ ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word 𝐵)
6136, 52, 60syl2anc 584 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word 𝐵)
62 eqid 2729 . . . . . . . . . . . . . . . . 17 (+g𝐻) = (+g𝐻)
6345, 62gsumccat 18750 . . . . . . . . . . . . . . . 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 1373 . . . . . . . . . . . . . . 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 14862 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) = ⟨“(𝑇‘⟨𝑎, 𝑏⟩)(𝑇‘⟨𝑎, (1o𝑏)⟩)”⟩)
66 df-ov 7372 . . . . . . . . . . . . . . . . . . . . . 22 (𝑎𝑇𝑏) = (𝑇‘⟨𝑎, 𝑏⟩)
6766a1i 11 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑎𝑇𝑏) = (𝑇‘⟨𝑎, 𝑏⟩))
6866fveq2i 6843 . . . . . . . . . . . . . . . . . . . . . 22 (𝑁‘(𝑎𝑇𝑏)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩))
69 df-ov 7372 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑎(𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)𝑏) = ((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)
70 eqid 2729 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩) = (𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)
7170efgmval 19626 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑎𝐼𝑏 ∈ 2o) → (𝑎(𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)𝑏) = ⟨𝑎, (1o𝑏)⟩)
7269, 71eqtr3id 2778 . . . . . . . . . . . . . . . . . . . . . . . . 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 6844 . . . . . . . . . . . . . . . . . . . . . . 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 19685 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ ⟨𝑎, 𝑏⟩ ∈ (𝐼 × 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7630, 75sylan2 593 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7776adantlr 715 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘((𝑦𝐼, 𝑧 ∈ 2o ↦ ⟨𝑦, (1o𝑧)⟩)‘⟨𝑎, 𝑏⟩)) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7874, 77eqtr3d 2766 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇‘⟨𝑎, (1o𝑏)⟩) = (𝑁‘(𝑇‘⟨𝑎, 𝑏⟩)))
7968, 78eqtr4id 2783 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑁‘(𝑎𝑇𝑏)) = (𝑇‘⟨𝑎, (1o𝑏)⟩))
8067, 79s2eqd 14805 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩ = ⟨“(𝑇‘⟨𝑎, 𝑏⟩)(𝑇‘⟨𝑎, (1o𝑏)⟩)”⟩)
8165, 80eqtr4d 2767 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) = ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩)
8281oveq2d 7385 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) = (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩))
83 simprr 772 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑏 ∈ 2o)
8452, 32, 83fovcdmd 7541 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑎𝑇𝑏) ∈ 𝐵)
8545, 46grpinvcl 18901 . . . . . . . . . . . . . . . . . . . 20 ((𝐻 ∈ Grp ∧ (𝑎𝑇𝑏) ∈ 𝐵) → (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵)
8656, 84, 85syl2anc 584 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵)
8745, 62gsumws2 18751 . . . . . . . . . . . . . . . . . . 19 ((𝐻 ∈ Mnd ∧ (𝑎𝑇𝑏) ∈ 𝐵 ∧ (𝑁‘(𝑎𝑇𝑏)) ∈ 𝐵) → (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩) = ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))))
8857, 84, 86, 87syl3anc 1373 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg ⟨“(𝑎𝑇𝑏)(𝑁‘(𝑎𝑇𝑏))”⟩) = ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))))
89 eqid 2729 . . . . . . . . . . . . . . . . . . . 20 (0g𝐻) = (0g𝐻)
9045, 62, 89, 46grprinv 18904 . . . . . . . . . . . . . . . . . . 19 ((𝐻 ∈ Grp ∧ (𝑎𝑇𝑏) ∈ 𝐵) → ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))) = (0g𝐻))
9156, 84, 90syl2anc 584 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑎𝑇𝑏)(+g𝐻)(𝑁‘(𝑎𝑇𝑏))) = (0g𝐻))
9282, 88, 913eqtrd 2768 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) = (0g𝐻))
9392oveq2d 7385 . . . . . . . . . . . . . . . 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 18748 . . . . . . . . . . . . . . . . . 18 ((𝐻 ∈ Mnd ∧ (𝑇 ∘ (𝑥 prefix 𝑛)) ∈ Word 𝐵) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) ∈ 𝐵)
9557, 59, 94syl2anc 584 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) ∈ 𝐵)
9645, 62, 89grprid 18882 . . . . . . . . . . . . . . . . 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 584 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛)))(+g𝐻)(0g𝐻)) = (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))))
9893, 97eqtrd 2764 . . . . . . . . . . . . . . 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 2769 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇 ∘ (𝑥 prefix 𝑛))) = (𝐻 Σg (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩))))
10099oveq1d 7384 . . . . . . . . . . . . 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 14586 . . . . . . . . . . . . . . . 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 14773 . . . . . . . . . . . . . . 15 (((𝑥 substr ⟨𝑛, (♯‘𝑥)⟩) ∈ Word (𝐼 × 2o) ∧ 𝑇:(𝐼 × 2o)⟶𝐵) → (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) ∈ Word 𝐵)
104102, 52, 103syl2anc 584 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) ∈ Word 𝐵)
10545, 62gsumccat 18750 . . . . . . . . . . . . . 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 1373 . . . . . . . . . . . . 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 14515 . . . . . . . . . . . . . . . 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 584 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩) ∈ Word (𝐼 × 2o))
109 wrdco 14773 . . . . . . . . . . . . . . 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 584 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩)) ∈ Word 𝐵)
11145, 62gsumccat 18750 . . . . . . . . . . . . . 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 1373 . . . . . . . . . . . . 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 2774 . . . . . . . . . . . 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 777 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → 𝑛 ∈ (0...(♯‘𝑥)))
115 lencl 14474 . . . . . . . . . . . . . . . . . . . 20 (𝑥 ∈ Word (𝐼 × 2o) → (♯‘𝑥) ∈ ℕ0)
11629, 115syl 17 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ ℕ0)
117 nn0uz 12811 . . . . . . . . . . . . . . . . . . 19 0 = (ℤ‘0)
118116, 117eleqtrdi 2838 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ (ℤ‘0))
119 eluzfz2 13469 . . . . . . . . . . . . . . . . . 18 ((♯‘𝑥) ∈ (ℤ‘0) → (♯‘𝑥) ∈ (0...(♯‘𝑥)))
120118, 119syl 17 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (♯‘𝑥) ∈ (0...(♯‘𝑥)))
121 ccatpfx 14642 . . . . . . . . . . . . . . . . 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 1373 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) = (𝑥 prefix (♯‘𝑥)))
123 pfxid 14625 . . . . . . . . . . . . . . . . 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 2764 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)) = 𝑥)
126125coeq2d 5816 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇 ∘ ((𝑥 prefix 𝑛) ++ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))) = (𝑇𝑥))
127 ccatco 14777 . . . . . . . . . . . . . . 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 1373 . . . . . . . . . . . . . 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 2766 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝑇𝑥) = ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩))))
130129oveq2d 7385 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg ((𝑇 ∘ (𝑥 prefix 𝑛)) ++ (𝑇 ∘ (𝑥 substr ⟨𝑛, (♯‘𝑥)⟩)))))
131 splval 14692 . . . . . . . . . . . . . . . 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 1374 . . . . . . . . . . . . . . 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 5816 . . . . . . . . . . . . . 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 14777 . . . . . . . . . . . . . . 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 1373 . . . . . . . . . . . . . 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 2764 . . . . . . . . . . . . 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 7385 . . . . . . . . . . . 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 2774 . . . . . . . . . . 11 (((𝜑 ∧ (𝑥𝑊𝑛 ∈ (0...(♯‘𝑥)))) ∧ (𝑎𝐼𝑏 ∈ 2o)) → (𝐻 Σg (𝑇𝑥)) = (𝐻 Σg (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩))))
139 vex 3448 . . . . . . . . . . . 12 𝑥 ∈ V
140 ovex 7402 . . . . . . . . . . . 12 (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ V
141 eleq1 2816 . . . . . . . . . . . . . . 15 (𝑢 = 𝑥 → (𝑢𝑊𝑥𝑊))
142 eleq1 2816 . . . . . . . . . . . . . . 15 (𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) → (𝑣𝑊 ↔ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) ∈ 𝑊))
143141, 142bi2anan9 638 . . . . . . . . . . . . . 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 5812 . . . . . . . . . . . . . . 15 (𝑢 = 𝑥 → (𝑇𝑢) = (𝑇𝑥))
146145oveq2d 7385 . . . . . . . . . . . . . 14 (𝑢 = 𝑥 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑥)))
147 coeq2 5812 . . . . . . . . . . . . . . 15 (𝑣 = (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩) → (𝑇𝑣) = (𝑇 ∘ (𝑥 splice ⟨𝑛, 𝑛, ⟨“⟨𝑎, 𝑏⟩⟨𝑎, (1o𝑏)⟩”⟩⟩)))
148147oveq2d 7385 . . . . . . . . . . . . . 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 2743 . . . . . . . . . . . . 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 632 . . . . . . . . . . . 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 2729 . . . . . . . . . . . 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 5492 . . . . . . . . . . 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 1345 . . . . . . . . . 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 3178 . . . . . . . . 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 3178 . . . . . . . 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 6854 . . . . . . . . . 10 𝑊 ∈ V
157 erex 8672 . . . . . . . . . 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 8655 . . . . . . . . . . 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 5104 . . . . . . . . . . . . 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 3199 . . . . . . . . . . . 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 3199 . . . . . . . . . . 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 632 . . . . . . . . . 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 3640 . . . . . . . . 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 713 . . . . . . 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 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 3982 . . . . 5 (𝜑 ⊆ {⟨𝑢, 𝑣⟩ ∣ ({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)))})
170169ssbrd 5145 . . . 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 19632 . . . . . 6 Er 𝑊
173 errel 8657 . . . . . 6 ( Er 𝑊 → Rel )
174172, 173mp1i 13 . . . . 5 (𝜑 → Rel )
175 brrelex12 5683 . . . . 5 ((Rel 𝐴 𝐶) → (𝐴 ∈ V ∧ 𝐶 ∈ V))
176174, 175sylan 580 . . . 4 ((𝜑𝐴 𝐶) → (𝐴 ∈ V ∧ 𝐶 ∈ V))
177 preq12 4695 . . . . . . 7 ((𝑢 = 𝐴𝑣 = 𝐶) → {𝑢, 𝑣} = {𝐴, 𝐶})
178177sseq1d 3975 . . . . . 6 ((𝑢 = 𝐴𝑣 = 𝐶) → ({𝑢, 𝑣} ⊆ 𝑊 ↔ {𝐴, 𝐶} ⊆ 𝑊))
179 coeq2 5812 . . . . . . . 8 (𝑢 = 𝐴 → (𝑇𝑢) = (𝑇𝐴))
180179oveq2d 7385 . . . . . . 7 (𝑢 = 𝐴 → (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝐴)))
181 coeq2 5812 . . . . . . . 8 (𝑣 = 𝐶 → (𝑇𝑣) = (𝑇𝐶))
182181oveq2d 7385 . . . . . . 7 (𝑣 = 𝐶 → (𝐻 Σg (𝑇𝑣)) = (𝐻 Σg (𝑇𝐶)))
183180, 182eqeqan12d 2743 . . . . . 6 ((𝑢 = 𝐴𝑣 = 𝐶) → ((𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣)) ↔ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶))))
184178, 183anbi12d 632 . . . . 5 ((𝑢 = 𝐴𝑣 = 𝐶) → (({𝑢, 𝑣} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝑢)) = (𝐻 Σg (𝑇𝑣))) ↔ ({𝐴, 𝐶} ⊆ 𝑊 ∧ (𝐻 Σg (𝑇𝐴)) = (𝐻 Σg (𝑇𝐶)))))
185184, 151brabga 5489 . . . 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 1540  wcel 2109  {cab 2707  wral 3044  Vcvv 3444  cdif 3908  cin 3910  wss 3911  c0 4292  ifcif 4484  {cpr 4587  cop 4591  cotp 4593   cint 4906   class class class wbr 5102  {copab 5164   I cid 5525   × cxp 5629  ccom 5635  Rel wrel 5636  wf 6495  cfv 6499  (class class class)co 7369  cmpo 7371  1oc1o 8404  2oc2o 8405   Er wer 8645  0cc0 11044  0cn0 12418  cuz 12769  ...cfz 13444  chash 14271  Word cword 14454   ++ cconcat 14511   substr csubstr 14581   prefix cpfx 14611   splice csplice 14690  ⟨“cs2 14783  Basecbs 17155  +gcplusg 17196  0gc0g 17378   Σg cgsu 17379  Mndcmnd 18643  Grpcgrp 18847  invgcminusg 18848   ~FG cefg 19620
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2701  ax-rep 5229  ax-sep 5246  ax-nul 5256  ax-pow 5315  ax-pr 5382  ax-un 7691  ax-cnex 11100  ax-resscn 11101  ax-1cn 11102  ax-icn 11103  ax-addcl 11104  ax-addrcl 11105  ax-mulcl 11106  ax-mulrcl 11107  ax-mulcom 11108  ax-addass 11109  ax-mulass 11110  ax-distr 11111  ax-i2m1 11112  ax-1ne0 11113  ax-1rid 11114  ax-rnegex 11115  ax-rrecex 11116  ax-cnre 11117  ax-pre-lttri 11118  ax-pre-lttrn 11119  ax-pre-ltadd 11120  ax-pre-mulgt0 11121
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-nel 3030  df-ral 3045  df-rex 3054  df-rmo 3351  df-reu 3352  df-rab 3403  df-v 3446  df-sbc 3751  df-csb 3860  df-dif 3914  df-un 3916  df-in 3918  df-ss 3928  df-pss 3931  df-nul 4293  df-if 4485  df-pw 4561  df-sn 4586  df-pr 4588  df-op 4592  df-ot 4594  df-uni 4868  df-int 4907  df-iun 4953  df-iin 4954  df-br 5103  df-opab 5165  df-mpt 5184  df-tr 5210  df-id 5526  df-eprel 5531  df-po 5539  df-so 5540  df-fr 5584  df-we 5586  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-pred 6262  df-ord 6323  df-on 6324  df-lim 6325  df-suc 6326  df-iota 6452  df-fun 6501  df-fn 6502  df-f 6503  df-f1 6504  df-fo 6505  df-f1o 6506  df-fv 6507  df-riota 7326  df-ov 7372  df-oprab 7373  df-mpo 7374  df-om 7823  df-1st 7947  df-2nd 7948  df-frecs 8237  df-wrecs 8268  df-recs 8317  df-rdg 8355  df-1o 8411  df-2o 8412  df-er 8648  df-map 8778  df-en 8896  df-dom 8897  df-sdom 8898  df-fin 8899  df-card 9868  df-pnf 11186  df-mnf 11187  df-xr 11188  df-ltxr 11189  df-le 11190  df-sub 11383  df-neg 11384  df-nn 12163  df-2 12225  df-n0 12419  df-z 12506  df-uz 12770  df-fz 13445  df-fzo 13592  df-seq 13943  df-hash 14272  df-word 14455  df-concat 14512  df-s1 14537  df-substr 14582  df-pfx 14612  df-splice 14691  df-s2 14790  df-sets 17110  df-slot 17128  df-ndx 17140  df-base 17156  df-ress 17177  df-plusg 17209  df-0g 17380  df-gsum 17381  df-mgm 18549  df-sgrp 18628  df-mnd 18644  df-submnd 18693  df-grp 18850  df-minusg 18851  df-efg 19623
This theorem is referenced by:  frgpupf  19687
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