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Theorem ablfaclem2 19997

Description: Lemma for ablfac 19999. (Contributed by Mario Carneiro, 27-Apr-2016.) (Proof shortened by Mario Carneiro, 3-May-2016.)

**Hypotheses**
Ref	Expression
ablfac.b	⊢ 𝐵 = (Base‘𝐺)
ablfac.c	⊢ 𝐶 = {𝑟 ∈ (SubGrp‘𝐺) ∣ (𝐺 ↾_s 𝑟) ∈ (CycGrp ∩ ran pGrp )}
ablfac.1	⊢ (𝜑 → 𝐺 ∈ Abel)
ablfac.2	⊢ (𝜑 → 𝐵 ∈ Fin)
ablfac.o	⊢ 𝑂 = (od‘𝐺)
ablfac.a	⊢ 𝐴 = {𝑤 ∈ ℙ ∣ 𝑤 ∥ (♯‘𝐵)}
ablfac.s	⊢ 𝑆 = (𝑝 ∈ 𝐴 ↦ {𝑥 ∈ 𝐵 ∣ (𝑂‘𝑥) ∥ (𝑝↑(𝑝 pCnt (♯‘𝐵)))})
ablfac.w	⊢ 𝑊 = (𝑔 ∈ (SubGrp‘𝐺) ↦ {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝑔)})
ablfaclem2.f	⊢ (𝜑 → 𝐹:𝐴⟶Word 𝐶)
ablfaclem2.q	⊢ (𝜑 → ∀𝑦 ∈ 𝐴 (𝐹‘𝑦) ∈ (𝑊‘(𝑆‘𝑦)))
ablfaclem2.l	⊢ 𝐿 = ∪ 𝑦 ∈ 𝐴 ({𝑦} × dom (𝐹‘𝑦))
ablfaclem2.g	⊢ (𝜑 → 𝐻:(0..^(♯‘𝐿))–1-1-onto→𝐿)

**Assertion**
Ref	Expression
ablfaclem2	⊢ (𝜑 → (𝑊‘𝐵) ≠ ∅)

Distinct variable groups: 𝑠,𝑝,𝑥,𝑦,𝐴 𝐹,𝑠 𝑔,𝑟,𝑠,𝑦,𝑆 𝑔,𝑝,𝑤,𝑥,𝐵,𝑟,𝑠 𝑂,𝑝,𝑥 𝐶,𝑔,𝑝,𝑠 𝑦,𝑤,𝐶,𝑥 𝑊,𝑝,𝑤,𝑥,𝑦 𝐻,𝑠 𝜑,𝑝,𝑠,𝑤,𝑥,𝑦 𝑔,𝐺,𝑝,𝑟,𝑠,𝑤,𝑥,𝑦 Allowed substitution hints: 𝜑(𝑔,𝑟) 𝐴(𝑤,𝑔,𝑟) 𝐵(𝑦) 𝐶(𝑟) 𝑆(𝑥,𝑤,𝑝) 𝐹(𝑥,𝑦,𝑤,𝑔,𝑟,𝑝) 𝐻(𝑥,𝑦,𝑤,𝑔,𝑟,𝑝) 𝐿(𝑥,𝑦,𝑤,𝑔,𝑠,𝑟,𝑝) 𝑂(𝑦,𝑤,𝑔,𝑠,𝑟) 𝑊(𝑔,𝑠,𝑟)

Proof of Theorem ablfaclem2 Dummy variable 𝑧 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		ablfac.1	. . 3 ⊢ (𝜑 → 𝐺 ∈ Abel)
2		ablgrp 19694	. . 3 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ Grp)
3		ablfac.b	. . . 4 ⊢ 𝐵 = (Base‘𝐺)
4	3	subgid 19044	. . 3 ⊢ (𝐺 ∈ Grp → 𝐵 ∈ (SubGrp‘𝐺))
5		ablfac.c	. . . 4 ⊢ 𝐶 = {𝑟 ∈ (SubGrp‘𝐺) ∣ (𝐺 ↾_s 𝑟) ∈ (CycGrp ∩ ran pGrp )}
6		ablfac.2	. . . 4 ⊢ (𝜑 → 𝐵 ∈ Fin)
7		ablfac.o	. . . 4 ⊢ 𝑂 = (od‘𝐺)
8		ablfac.a	. . . 4 ⊢ 𝐴 = {𝑤 ∈ ℙ ∣ 𝑤 ∥ (♯‘𝐵)}
9		ablfac.s	. . . 4 ⊢ 𝑆 = (𝑝 ∈ 𝐴 ↦ {𝑥 ∈ 𝐵 ∣ (𝑂‘𝑥) ∥ (𝑝↑(𝑝 pCnt (♯‘𝐵)))})
10		ablfac.w	. . . 4 ⊢ 𝑊 = (𝑔 ∈ (SubGrp‘𝐺) ↦ {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝑔)})
11	3, 5, 1, 6, 7, 8, 9, 10	ablfaclem1 19996	. . 3 ⊢ (𝐵 ∈ (SubGrp‘𝐺) → (𝑊‘𝐵) = {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝐵)})
12	1, 2, 4, 11	4syl 19	. 2 ⊢ (𝜑 → (𝑊‘𝐵) = {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝐵)})
13		ablfaclem2.f	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝐹:𝐴⟶Word 𝐶)
14	13	ffvelcdmda 7085	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ Word 𝐶)
15		wrdf 14473	. . . . . . . . . . . . 13 ⊢ ((𝐹‘𝑦) ∈ Word 𝐶 → (𝐹‘𝑦):(0..^(♯‘(𝐹‘𝑦)))⟶𝐶)
16	14, 15	syl 17	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦):(0..^(♯‘(𝐹‘𝑦)))⟶𝐶)
17	16	ffdmd 6747	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦):dom (𝐹‘𝑦)⟶𝐶)
18	17	ffvelcdmda 7085	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑦 ∈ 𝐴) ∧ 𝑧 ∈ dom (𝐹‘𝑦)) → ((𝐹‘𝑦)‘𝑧) ∈ 𝐶)
19	18	anasss 465	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑦 ∈ 𝐴 ∧ 𝑧 ∈ dom (𝐹‘𝑦))) → ((𝐹‘𝑦)‘𝑧) ∈ 𝐶)
20	19	ralrimivva 3198	. . . . . . . 8 ⊢ (𝜑 → ∀𝑦 ∈ 𝐴 ∀𝑧 ∈ dom (𝐹‘𝑦)((𝐹‘𝑦)‘𝑧) ∈ 𝐶)
21		eqid 2730	. . . . . . . . 9 ⊢ (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) = (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))
22	21	fmpox 8055	. . . . . . . 8 ⊢ (∀𝑦 ∈ 𝐴 ∀𝑧 ∈ dom (𝐹‘𝑦)((𝐹‘𝑦)‘𝑧) ∈ 𝐶 ↔ (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)):∪ 𝑦 ∈ 𝐴 ({𝑦} × dom (𝐹‘𝑦))⟶𝐶)
23	20, 22	sylib 217	. . . . . . 7 ⊢ (𝜑 → (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)):∪ 𝑦 ∈ 𝐴 ({𝑦} × dom (𝐹‘𝑦))⟶𝐶)
24		ablfaclem2.l	. . . . . . . 8 ⊢ 𝐿 = ∪ 𝑦 ∈ 𝐴 ({𝑦} × dom (𝐹‘𝑦))
25	24	feq2i 6708	. . . . . . 7 ⊢ ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)):𝐿⟶𝐶 ↔ (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)):∪ 𝑦 ∈ 𝐴 ({𝑦} × dom (𝐹‘𝑦))⟶𝐶)
26	23, 25	sylibr 233	. . . . . 6 ⊢ (𝜑 → (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)):𝐿⟶𝐶)
27		ablfaclem2.g	. . . . . . 7 ⊢ (𝜑 → 𝐻:(0..^(♯‘𝐿))–1-1-onto→𝐿)
28		f1of 6832	. . . . . . 7 ⊢ (𝐻:(0..^(♯‘𝐿))–1-1-onto→𝐿 → 𝐻:(0..^(♯‘𝐿))⟶𝐿)
29	27, 28	syl 17	. . . . . 6 ⊢ (𝜑 → 𝐻:(0..^(♯‘𝐿))⟶𝐿)
30		fco 6740	. . . . . 6 ⊢ (((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)):𝐿⟶𝐶 ∧ 𝐻:(0..^(♯‘𝐿))⟶𝐿) → ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻):(0..^(♯‘𝐿))⟶𝐶)
31	26, 29, 30	syl2anc 582	. . . . 5 ⊢ (𝜑 → ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻):(0..^(♯‘𝐿))⟶𝐶)
32		iswrdi 14472	. . . . 5 ⊢ (((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻):(0..^(♯‘𝐿))⟶𝐶 → ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) ∈ Word 𝐶)
33	31, 32	syl 17	. . . 4 ⊢ (𝜑 → ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) ∈ Word 𝐶)
34		ablfaclem2.q	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → ∀𝑦 ∈ 𝐴 (𝐹‘𝑦) ∈ (𝑊‘(𝑆‘𝑦)))
35	34	r19.21bi 3246	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ (𝑊‘(𝑆‘𝑦)))
36	8	ssrab3 4079	. . . . . . . . . . . . . . . . . . 19 ⊢ 𝐴 ⊆ ℙ
37	36	a1i 11	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → 𝐴 ⊆ ℙ)
38	3, 7, 9, 1, 6, 37	ablfac1b 19981	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → 𝐺dom DProd 𝑆)
39	3	fvexi 6904	. . . . . . . . . . . . . . . . . . . 20 ⊢ 𝐵 ∈ V
40	39	rabex 5331	. . . . . . . . . . . . . . . . . . 19 ⊢ {𝑥 ∈ 𝐵 ∣ (𝑂‘𝑥) ∥ (𝑝↑(𝑝 pCnt (♯‘𝐵)))} ∈ V
41	40, 9	dmmpti 6693	. . . . . . . . . . . . . . . . . 18 ⊢ dom 𝑆 = 𝐴
42	41	a1i 11	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → dom 𝑆 = 𝐴)
43	38, 42	dprdf2 19918	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝑆:𝐴⟶(SubGrp‘𝐺))
44	43	ffvelcdmda 7085	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝑆‘𝑦) ∈ (SubGrp‘𝐺))
45	3, 5, 1, 6, 7, 8, 9, 10	ablfaclem1 19996	. . . . . . . . . . . . . . 15 ⊢ ((𝑆‘𝑦) ∈ (SubGrp‘𝐺) → (𝑊‘(𝑆‘𝑦)) = {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = (𝑆‘𝑦))})
46	44, 45	syl 17	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝑊‘(𝑆‘𝑦)) = {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = (𝑆‘𝑦))})
47	35, 46	eleqtrd 2833	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = (𝑆‘𝑦))})
48		breq2 5151	. . . . . . . . . . . . . . . 16 ⊢ (𝑠 = (𝐹‘𝑦) → (𝐺dom DProd 𝑠 ↔ 𝐺dom DProd (𝐹‘𝑦)))
49		oveq2 7419	. . . . . . . . . . . . . . . . 17 ⊢ (𝑠 = (𝐹‘𝑦) → (𝐺 DProd 𝑠) = (𝐺 DProd (𝐹‘𝑦)))
50	49	eqeq1d 2732	. . . . . . . . . . . . . . . 16 ⊢ (𝑠 = (𝐹‘𝑦) → ((𝐺 DProd 𝑠) = (𝑆‘𝑦) ↔ (𝐺 DProd (𝐹‘𝑦)) = (𝑆‘𝑦)))
51	48, 50	anbi12d 629	. . . . . . . . . . . . . . 15 ⊢ (𝑠 = (𝐹‘𝑦) → ((𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = (𝑆‘𝑦)) ↔ (𝐺dom DProd (𝐹‘𝑦) ∧ (𝐺 DProd (𝐹‘𝑦)) = (𝑆‘𝑦))))
52	51	elrab 3682	. . . . . . . . . . . . . 14 ⊢ ((𝐹‘𝑦) ∈ {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = (𝑆‘𝑦))} ↔ ((𝐹‘𝑦) ∈ Word 𝐶 ∧ (𝐺dom DProd (𝐹‘𝑦) ∧ (𝐺 DProd (𝐹‘𝑦)) = (𝑆‘𝑦))))
53	52	simprbi 495	. . . . . . . . . . . . 13 ⊢ ((𝐹‘𝑦) ∈ {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = (𝑆‘𝑦))} → (𝐺dom DProd (𝐹‘𝑦) ∧ (𝐺 DProd (𝐹‘𝑦)) = (𝑆‘𝑦)))
54	47, 53	syl 17	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐺dom DProd (𝐹‘𝑦) ∧ (𝐺 DProd (𝐹‘𝑦)) = (𝑆‘𝑦)))
55	54	simpld 493	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → 𝐺dom DProd (𝐹‘𝑦))
56		dprdf 19917	. . . . . . . . . . 11 ⊢ (𝐺dom DProd (𝐹‘𝑦) → (𝐹‘𝑦):dom (𝐹‘𝑦)⟶(SubGrp‘𝐺))
57	55, 56	syl 17	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦):dom (𝐹‘𝑦)⟶(SubGrp‘𝐺))
58	57	ffvelcdmda 7085	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑦 ∈ 𝐴) ∧ 𝑧 ∈ dom (𝐹‘𝑦)) → ((𝐹‘𝑦)‘𝑧) ∈ (SubGrp‘𝐺))
59	58	anasss 465	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑦 ∈ 𝐴 ∧ 𝑧 ∈ dom (𝐹‘𝑦))) → ((𝐹‘𝑦)‘𝑧) ∈ (SubGrp‘𝐺))
60	57	feqmptd 6959	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) = (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)))
61	55, 60	breqtrd 5173	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → 𝐺dom DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)))
62	43	feqmptd 6959	. . . . . . . . . 10 ⊢ (𝜑 → 𝑆 = (𝑦 ∈ 𝐴 ↦ (𝑆‘𝑦)))
63	60	oveq2d 7427	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐺 DProd (𝐹‘𝑦)) = (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))))
64	54	simprd 494	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐺 DProd (𝐹‘𝑦)) = (𝑆‘𝑦))
65	63, 64	eqtr3d 2772	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝐴) → (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))) = (𝑆‘𝑦))
66	65	mpteq2dva 5247	. . . . . . . . . 10 ⊢ (𝜑 → (𝑦 ∈ 𝐴 ↦ (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)))) = (𝑦 ∈ 𝐴 ↦ (𝑆‘𝑦)))
67	62, 66	eqtr4d 2773	. . . . . . . . 9 ⊢ (𝜑 → 𝑆 = (𝑦 ∈ 𝐴 ↦ (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)))))
68	38, 67	breqtrd 5173	. . . . . . . 8 ⊢ (𝜑 → 𝐺dom DProd (𝑦 ∈ 𝐴 ↦ (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)))))
69	59, 61, 68	dprd2d2 19955	. . . . . . 7 ⊢ (𝜑 → (𝐺dom DProd (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∧ (𝐺 DProd (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))) = (𝐺 DProd (𝑦 ∈ 𝐴 ↦ (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)))))))
70	69	simpld 493	. . . . . 6 ⊢ (𝜑 → 𝐺dom DProd (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)))
71	26	fdmd 6727	. . . . . 6 ⊢ (𝜑 → dom (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) = 𝐿)
72	70, 71, 27	dprdf1o 19943	. . . . 5 ⊢ (𝜑 → (𝐺dom DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) ∧ (𝐺 DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻)) = (𝐺 DProd (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)))))
73	72	simpld 493	. . . 4 ⊢ (𝜑 → 𝐺dom DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻))
74	72	simprd 494	. . . . 5 ⊢ (𝜑 → (𝐺 DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻)) = (𝐺 DProd (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))))
75	69	simprd 494	. . . . 5 ⊢ (𝜑 → (𝐺 DProd (𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))) = (𝐺 DProd (𝑦 ∈ 𝐴 ↦ (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))))))
76	67	oveq2d 7427	. . . . . 6 ⊢ (𝜑 → (𝐺 DProd 𝑆) = (𝐺 DProd (𝑦 ∈ 𝐴 ↦ (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))))))
77		ssidd 4004	. . . . . . 7 ⊢ (𝜑 → 𝐴 ⊆ 𝐴)
78	3, 7, 9, 1, 6, 37, 8, 77	ablfac1c 19982	. . . . . 6 ⊢ (𝜑 → (𝐺 DProd 𝑆) = 𝐵)
79	76, 78	eqtr3d 2772	. . . . 5 ⊢ (𝜑 → (𝐺 DProd (𝑦 ∈ 𝐴 ↦ (𝐺 DProd (𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧))))) = 𝐵)
80	74, 75, 79	3eqtrd 2774	. . . 4 ⊢ (𝜑 → (𝐺 DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻)) = 𝐵)
81		breq2 5151	. . . . . 6 ⊢ (𝑠 = ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) → (𝐺dom DProd 𝑠 ↔ 𝐺dom DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻)))
82		oveq2 7419	. . . . . . 7 ⊢ (𝑠 = ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) → (𝐺 DProd 𝑠) = (𝐺 DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻)))
83	82	eqeq1d 2732	. . . . . 6 ⊢ (𝑠 = ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) → ((𝐺 DProd 𝑠) = 𝐵 ↔ (𝐺 DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻)) = 𝐵))
84	81, 83	anbi12d 629	. . . . 5 ⊢ (𝑠 = ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) → ((𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝐵) ↔ (𝐺dom DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) ∧ (𝐺 DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻)) = 𝐵)))
85	84	rspcev 3611	. . . 4 ⊢ ((((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) ∈ Word 𝐶 ∧ (𝐺dom DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻) ∧ (𝐺 DProd ((𝑦 ∈ 𝐴, 𝑧 ∈ dom (𝐹‘𝑦) ↦ ((𝐹‘𝑦)‘𝑧)) ∘ 𝐻)) = 𝐵)) → ∃𝑠 ∈ Word 𝐶(𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝐵))
86	33, 73, 80, 85	syl12anc 833	. . 3 ⊢ (𝜑 → ∃𝑠 ∈ Word 𝐶(𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝐵))
87		rabn0 4384	. . 3 ⊢ ({𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝐵)} ≠ ∅ ↔ ∃𝑠 ∈ Word 𝐶(𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝐵))
88	86, 87	sylibr 233	. 2 ⊢ (𝜑 → {𝑠 ∈ Word 𝐶 ∣ (𝐺dom DProd 𝑠 ∧ (𝐺 DProd 𝑠) = 𝐵)} ≠ ∅)
89	12, 88	eqnetrd 3006	1 ⊢ (𝜑 → (𝑊‘𝐵) ≠ ∅)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 394 = wceq 1539 ∈ wcel 2104 ≠ wne 2938 ∀wral 3059 ∃wrex 3068 {crab 3430 ∩ cin 3946 ⊆ wss 3947 ∅c0 4321 {csn 4627 ∪ ciun 4996 class class class wbr 5147 ↦ cmpt 5230 × cxp 5673 dom cdm 5675 ran crn 5676 ∘ ccom 5679 ⟶wf 6538 –1-1-onto→wf1o 6541 ‘cfv 6542 (class class class)co 7411 ∈ cmpo 7413 Fincfn 8941 0cc0 11112 ..^cfzo 13631 ↑cexp 14031 ♯chash 14294 Word cword 14468 ∥ cdvds 16201 ℙcprime 16612 pCnt cpc 16773 Basecbs 17148 ↾_s cress 17177 Grpcgrp 18855 SubGrpcsubg 19036 odcod 19433 pGrp cpgp 19435 Abelcabl 19690 CycGrpccyg 19786 DProd cdprd 19904

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 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2701 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7727 ax-inf2 9638 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189 ax-pre-sup 11190

This theorem depends on definitions: df-bi 206 df-an 395 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2532 df-eu 2561 df-clab 2708 df-cleq 2722 df-clel 2808 df-nfc 2883 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3474 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-int 4950 df-iun 4998 df-iin 4999 df-disj 5113 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-se 5631 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7367 df-ov 7414 df-oprab 7415 df-mpo 7416 df-of 7672 df-om 7858 df-1st 7977 df-2nd 7978 df-supp 8149 df-tpos 8213 df-frecs 8268 df-wrecs 8299 df-recs 8373 df-rdg 8412 df-1o 8468 df-2o 8469 df-oadd 8472 df-omul 8473 df-er 8705 df-ec 8707 df-qs 8711 df-map 8824 df-ixp 8894 df-en 8942 df-dom 8943 df-sdom 8944 df-fin 8945 df-fsupp 9364 df-sup 9439 df-inf 9440 df-oi 9507 df-dju 9898 df-card 9936 df-acn 9939 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-div 11876 df-nn 12217 df-2 12279 df-3 12280 df-n0 12477 df-xnn0 12549 df-z 12563 df-uz 12827 df-q 12937 df-rp 12979 df-fz 13489 df-fzo 13632 df-fl 13761 df-mod 13839 df-seq 13971 df-exp 14032 df-fac 14238 df-bc 14267 df-hash 14295 df-word 14469 df-cj 15050 df-re 15051 df-im 15052 df-sqrt 15186 df-abs 15187 df-clim 15436 df-sum 15637 df-dvds 16202 df-gcd 16440 df-prm 16613 df-pc 16774 df-sets 17101 df-slot 17119 df-ndx 17131 df-base 17149 df-ress 17178 df-plusg 17214 df-0g 17391 df-gsum 17392 df-mre 17534 df-mrc 17535 df-acs 17537 df-mgm 18565 df-sgrp 18644 df-mnd 18660 df-mhm 18705 df-submnd 18706 df-grp 18858 df-minusg 18859 df-sbg 18860 df-mulg 18987 df-subg 19039 df-eqg 19041 df-ghm 19128 df-gim 19173 df-ga 19195 df-cntz 19222 df-oppg 19251 df-od 19437 df-lsm 19545 df-pj1 19546 df-cmn 19691 df-abl 19692 df-dprd 19906

This theorem is referenced by: ablfaclem3 19998

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