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Theorem wilthlem3 26996

Description: Lemma for wilth 26997. Here we round out the argument of wilthlem2 26995 with the final step of the induction. The induction argument shows that every subset of 1...(𝑃 − 1) that is closed under inverse and contains 𝑃 − 1 multiplies to -1 mod 𝑃, and clearly 1...(𝑃 − 1) itself is such a set. Thus, the product of all the elements is -1, and all that is left is to translate the group sum notation (which we used for its unordered summing capabilities) into an ordered sequence to match the definition of the factorial. (Contributed by Mario Carneiro, 24-Jan-2015.) (Proof shortened by AV, 27-Jul-2019.)

**Hypotheses**
Ref	Expression
wilthlem.t	⊢ 𝑇 = (mulGrp‘ℂ_fld)
wilthlem.a	⊢ 𝐴 = {𝑥 ∈ 𝒫 (1...(𝑃 − 1)) ∣ ((𝑃 − 1) ∈ 𝑥 ∧ ∀𝑦 ∈ 𝑥 ((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ 𝑥)}

**Assertion**
Ref	Expression
wilthlem3	⊢ (𝑃 ∈ ℙ → 𝑃 ∥ ((!‘(𝑃 − 1)) + 1))

Distinct variable groups: 𝑥,𝑦,𝐴 𝑥,𝑃,𝑦 𝑥,𝑇,𝑦

Proof of Theorem wilthlem3 Dummy variables 𝑡 𝑠 𝑘 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		prmuz2 16625	. . . . . . . 8 ⊢ (𝑃 ∈ ℙ → 𝑃 ∈ (ℤ_≥‘2))
2		uz2m1nn 12842	. . . . . . . 8 ⊢ (𝑃 ∈ (ℤ_≥‘2) → (𝑃 − 1) ∈ ℕ)
3	1, 2	syl 17	. . . . . . 7 ⊢ (𝑃 ∈ ℙ → (𝑃 − 1) ∈ ℕ)
4		nnuz 12796	. . . . . . 7 ⊢ ℕ = (ℤ_≥‘1)
5	3, 4	eleqtrdi 2838	. . . . . 6 ⊢ (𝑃 ∈ ℙ → (𝑃 − 1) ∈ (ℤ_≥‘1))
6		eluzfz2 13453	. . . . . 6 ⊢ ((𝑃 − 1) ∈ (ℤ_≥‘1) → (𝑃 − 1) ∈ (1...(𝑃 − 1)))
7	5, 6	syl 17	. . . . 5 ⊢ (𝑃 ∈ ℙ → (𝑃 − 1) ∈ (1...(𝑃 − 1)))
8		simpl 482	. . . . . . . 8 ⊢ ((𝑃 ∈ ℙ ∧ 𝑦 ∈ (1...(𝑃 − 1))) → 𝑃 ∈ ℙ)
9		elfzelz 13445	. . . . . . . . 9 ⊢ (𝑦 ∈ (1...(𝑃 − 1)) → 𝑦 ∈ ℤ)
10	9	adantl 481	. . . . . . . 8 ⊢ ((𝑃 ∈ ℙ ∧ 𝑦 ∈ (1...(𝑃 − 1))) → 𝑦 ∈ ℤ)
11		prmnn 16603	. . . . . . . . 9 ⊢ (𝑃 ∈ ℙ → 𝑃 ∈ ℕ)
12		fzm1ndvds 16251	. . . . . . . . 9 ⊢ ((𝑃 ∈ ℕ ∧ 𝑦 ∈ (1...(𝑃 − 1))) → ¬ 𝑃 ∥ 𝑦)
13	11, 12	sylan 580	. . . . . . . 8 ⊢ ((𝑃 ∈ ℙ ∧ 𝑦 ∈ (1...(𝑃 − 1))) → ¬ 𝑃 ∥ 𝑦)
14		eqid 2729	. . . . . . . . 9 ⊢ ((𝑦↑(𝑃 − 2)) mod 𝑃) = ((𝑦↑(𝑃 − 2)) mod 𝑃)
15	14	prmdiv 16714	. . . . . . . 8 ⊢ ((𝑃 ∈ ℙ ∧ 𝑦 ∈ ℤ ∧ ¬ 𝑃 ∥ 𝑦) → (((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1)) ∧ 𝑃 ∥ ((𝑦 · ((𝑦↑(𝑃 − 2)) mod 𝑃)) − 1)))
16	8, 10, 13, 15	syl3anc 1373	. . . . . . 7 ⊢ ((𝑃 ∈ ℙ ∧ 𝑦 ∈ (1...(𝑃 − 1))) → (((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1)) ∧ 𝑃 ∥ ((𝑦 · ((𝑦↑(𝑃 − 2)) mod 𝑃)) − 1)))
17	16	simpld 494	. . . . . 6 ⊢ ((𝑃 ∈ ℙ ∧ 𝑦 ∈ (1...(𝑃 − 1))) → ((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1)))
18	17	ralrimiva 3121	. . . . 5 ⊢ (𝑃 ∈ ℙ → ∀𝑦 ∈ (1...(𝑃 − 1))((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1)))
19		ovex 7386	. . . . . . 7 ⊢ (1...(𝑃 − 1)) ∈ V
20	19	pwid 4575	. . . . . 6 ⊢ (1...(𝑃 − 1)) ∈ 𝒫 (1...(𝑃 − 1))
21		eleq2 2817	. . . . . . . 8 ⊢ (𝑥 = (1...(𝑃 − 1)) → ((𝑃 − 1) ∈ 𝑥 ↔ (𝑃 − 1) ∈ (1...(𝑃 − 1))))
22		eleq2 2817	. . . . . . . . 9 ⊢ (𝑥 = (1...(𝑃 − 1)) → (((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ 𝑥 ↔ ((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1))))
23	22	raleqbi1dv 3302	. . . . . . . 8 ⊢ (𝑥 = (1...(𝑃 − 1)) → (∀𝑦 ∈ 𝑥 ((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ 𝑥 ↔ ∀𝑦 ∈ (1...(𝑃 − 1))((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1))))
24	21, 23	anbi12d 632	. . . . . . 7 ⊢ (𝑥 = (1...(𝑃 − 1)) → (((𝑃 − 1) ∈ 𝑥 ∧ ∀𝑦 ∈ 𝑥 ((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ 𝑥) ↔ ((𝑃 − 1) ∈ (1...(𝑃 − 1)) ∧ ∀𝑦 ∈ (1...(𝑃 − 1))((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1)))))
25		wilthlem.a	. . . . . . 7 ⊢ 𝐴 = {𝑥 ∈ 𝒫 (1...(𝑃 − 1)) ∣ ((𝑃 − 1) ∈ 𝑥 ∧ ∀𝑦 ∈ 𝑥 ((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ 𝑥)}
26	24, 25	elrab2 3653	. . . . . 6 ⊢ ((1...(𝑃 − 1)) ∈ 𝐴 ↔ ((1...(𝑃 − 1)) ∈ 𝒫 (1...(𝑃 − 1)) ∧ ((𝑃 − 1) ∈ (1...(𝑃 − 1)) ∧ ∀𝑦 ∈ (1...(𝑃 − 1))((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1)))))
27	20, 26	mpbiran 709	. . . . 5 ⊢ ((1...(𝑃 − 1)) ∈ 𝐴 ↔ ((𝑃 − 1) ∈ (1...(𝑃 − 1)) ∧ ∀𝑦 ∈ (1...(𝑃 − 1))((𝑦↑(𝑃 − 2)) mod 𝑃) ∈ (1...(𝑃 − 1))))
28	7, 18, 27	sylanbrc 583	. . . 4 ⊢ (𝑃 ∈ ℙ → (1...(𝑃 − 1)) ∈ 𝐴)
29		fzfi 13897	. . . . 5 ⊢ (1...(𝑃 − 1)) ∈ Fin
30		eleq1 2816	. . . . . . . 8 ⊢ (𝑠 = 𝑡 → (𝑠 ∈ 𝐴 ↔ 𝑡 ∈ 𝐴))
31		reseq2 5929	. . . . . . . . . . 11 ⊢ (𝑠 = 𝑡 → ( I ↾ 𝑠) = ( I ↾ 𝑡))
32	31	oveq2d 7369	. . . . . . . . . 10 ⊢ (𝑠 = 𝑡 → (𝑇 Σ_g ( I ↾ 𝑠)) = (𝑇 Σ_g ( I ↾ 𝑡)))
33	32	oveq1d 7368	. . . . . . . . 9 ⊢ (𝑠 = 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = ((𝑇 Σ_g ( I ↾ 𝑡)) mod 𝑃))
34	33	eqeq1d 2731	. . . . . . . 8 ⊢ (𝑠 = 𝑡 → (((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃) ↔ ((𝑇 Σ_g ( I ↾ 𝑡)) mod 𝑃) = (-1 mod 𝑃)))
35	30, 34	imbi12d 344	. . . . . . 7 ⊢ (𝑠 = 𝑡 → ((𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)) ↔ (𝑡 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑡)) mod 𝑃) = (-1 mod 𝑃))))
36	35	imbi2d 340	. . . . . 6 ⊢ (𝑠 = 𝑡 → ((𝑃 ∈ ℙ → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃))) ↔ (𝑃 ∈ ℙ → (𝑡 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑡)) mod 𝑃) = (-1 mod 𝑃)))))
37		eleq1 2816	. . . . . . . 8 ⊢ (𝑠 = (1...(𝑃 − 1)) → (𝑠 ∈ 𝐴 ↔ (1...(𝑃 − 1)) ∈ 𝐴))
38		reseq2 5929	. . . . . . . . . . 11 ⊢ (𝑠 = (1...(𝑃 − 1)) → ( I ↾ 𝑠) = ( I ↾ (1...(𝑃 − 1))))
39	38	oveq2d 7369	. . . . . . . . . 10 ⊢ (𝑠 = (1...(𝑃 − 1)) → (𝑇 Σ_g ( I ↾ 𝑠)) = (𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))))
40	39	oveq1d 7368	. . . . . . . . 9 ⊢ (𝑠 = (1...(𝑃 − 1)) → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃))
41	40	eqeq1d 2731	. . . . . . . 8 ⊢ (𝑠 = (1...(𝑃 − 1)) → (((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃) ↔ ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃) = (-1 mod 𝑃)))
42	37, 41	imbi12d 344	. . . . . . 7 ⊢ (𝑠 = (1...(𝑃 − 1)) → ((𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)) ↔ ((1...(𝑃 − 1)) ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃) = (-1 mod 𝑃))))
43	42	imbi2d 340	. . . . . 6 ⊢ (𝑠 = (1...(𝑃 − 1)) → ((𝑃 ∈ ℙ → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃))) ↔ (𝑃 ∈ ℙ → ((1...(𝑃 − 1)) ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃) = (-1 mod 𝑃)))))
44		bi2.04 387	. . . . . . . . . . 11 ⊢ ((𝑠 ⊊ 𝑡 → (𝑃 ∈ ℙ → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))) ↔ (𝑃 ∈ ℙ → (𝑠 ⊊ 𝑡 → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))))
45		pm2.27 42	. . . . . . . . . . . 12 ⊢ (𝑃 ∈ ℙ → ((𝑃 ∈ ℙ → (𝑠 ⊊ 𝑡 → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))) → (𝑠 ⊊ 𝑡 → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))))
46	45	com34 91	. . . . . . . . . . 11 ⊢ (𝑃 ∈ ℙ → ((𝑃 ∈ ℙ → (𝑠 ⊊ 𝑡 → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))) → (𝑠 ∈ 𝐴 → (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))))
47	44, 46	biimtrid 242	. . . . . . . . . 10 ⊢ (𝑃 ∈ ℙ → ((𝑠 ⊊ 𝑡 → (𝑃 ∈ ℙ → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))) → (𝑠 ∈ 𝐴 → (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))))
48	47	alimdv 1916	. . . . . . . . 9 ⊢ (𝑃 ∈ ℙ → (∀𝑠(𝑠 ⊊ 𝑡 → (𝑃 ∈ ℙ → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))) → ∀𝑠(𝑠 ∈ 𝐴 → (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))))
49		df-ral 3045	. . . . . . . . 9 ⊢ (∀𝑠 ∈ 𝐴 (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)) ↔ ∀𝑠(𝑠 ∈ 𝐴 → (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃))))
50	48, 49	imbitrrdi 252	. . . . . . . 8 ⊢ (𝑃 ∈ ℙ → (∀𝑠(𝑠 ⊊ 𝑡 → (𝑃 ∈ ℙ → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))) → ∀𝑠 ∈ 𝐴 (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃))))
51		wilthlem.t	. . . . . . . . . 10 ⊢ 𝑇 = (mulGrp‘ℂ_fld)
52		simp1 1136	. . . . . . . . . 10 ⊢ ((𝑃 ∈ ℙ ∧ ∀𝑠 ∈ 𝐴 (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)) ∧ 𝑡 ∈ 𝐴) → 𝑃 ∈ ℙ)
53		simp3 1138	. . . . . . . . . 10 ⊢ ((𝑃 ∈ ℙ ∧ ∀𝑠 ∈ 𝐴 (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)) ∧ 𝑡 ∈ 𝐴) → 𝑡 ∈ 𝐴)
54		simp2 1137	. . . . . . . . . 10 ⊢ ((𝑃 ∈ ℙ ∧ ∀𝑠 ∈ 𝐴 (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)) ∧ 𝑡 ∈ 𝐴) → ∀𝑠 ∈ 𝐴 (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))
55	51, 25, 52, 53, 54	wilthlem2 26995	. . . . . . . . 9 ⊢ ((𝑃 ∈ ℙ ∧ ∀𝑠 ∈ 𝐴 (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)) ∧ 𝑡 ∈ 𝐴) → ((𝑇 Σ_g ( I ↾ 𝑡)) mod 𝑃) = (-1 mod 𝑃))
56	55	3exp 1119	. . . . . . . 8 ⊢ (𝑃 ∈ ℙ → (∀𝑠 ∈ 𝐴 (𝑠 ⊊ 𝑡 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)) → (𝑡 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑡)) mod 𝑃) = (-1 mod 𝑃))))
57	50, 56	syldc 48	. . . . . . 7 ⊢ (∀𝑠(𝑠 ⊊ 𝑡 → (𝑃 ∈ ℙ → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))) → (𝑃 ∈ ℙ → (𝑡 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑡)) mod 𝑃) = (-1 mod 𝑃))))
58	57	a1i 11	. . . . . 6 ⊢ (𝑡 ∈ Fin → (∀𝑠(𝑠 ⊊ 𝑡 → (𝑃 ∈ ℙ → (𝑠 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑠)) mod 𝑃) = (-1 mod 𝑃)))) → (𝑃 ∈ ℙ → (𝑡 ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ 𝑡)) mod 𝑃) = (-1 mod 𝑃)))))
59	36, 43, 58	findcard3 9187	. . . . 5 ⊢ ((1...(𝑃 − 1)) ∈ Fin → (𝑃 ∈ ℙ → ((1...(𝑃 − 1)) ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃) = (-1 mod 𝑃))))
60	29, 59	ax-mp 5	. . . 4 ⊢ (𝑃 ∈ ℙ → ((1...(𝑃 − 1)) ∈ 𝐴 → ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃) = (-1 mod 𝑃)))
61	28, 60	mpd 15	. . 3 ⊢ (𝑃 ∈ ℙ → ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃) = (-1 mod 𝑃))
62		cnfld1 21318	. . . . . 6 ⊢ 1 = (1_r‘ℂ_fld)
63	51, 62	ringidval 20086	. . . . 5 ⊢ 1 = (0_g‘𝑇)
64		cncrng 21313	. . . . . 6 ⊢ ℂ_fld ∈ CRing
65	51	crngmgp 20144	. . . . . 6 ⊢ (ℂ_fld ∈ CRing → 𝑇 ∈ CMnd)
66	64, 65	mp1i 13	. . . . 5 ⊢ (𝑃 ∈ ℙ → 𝑇 ∈ CMnd)
67	29	a1i 11	. . . . 5 ⊢ (𝑃 ∈ ℙ → (1...(𝑃 − 1)) ∈ Fin)
68		zsubrg 21345	. . . . . 6 ⊢ ℤ ∈ (SubRing‘ℂ_fld)
69	51	subrgsubm 20488	. . . . . 6 ⊢ (ℤ ∈ (SubRing‘ℂ_fld) → ℤ ∈ (SubMnd‘𝑇))
70	68, 69	mp1i 13	. . . . 5 ⊢ (𝑃 ∈ ℙ → ℤ ∈ (SubMnd‘𝑇))
71		f1oi 6806	. . . . . . . 8 ⊢ ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))–1-1-onto→(1...(𝑃 − 1))
72		f1of 6768	. . . . . . . 8 ⊢ (( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))–1-1-onto→(1...(𝑃 − 1)) → ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶(1...(𝑃 − 1)))
73	71, 72	ax-mp 5	. . . . . . 7 ⊢ ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶(1...(𝑃 − 1))
74		fzssz 13447	. . . . . . 7 ⊢ (1...(𝑃 − 1)) ⊆ ℤ
75		fss 6672	. . . . . . 7 ⊢ ((( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶(1...(𝑃 − 1)) ∧ (1...(𝑃 − 1)) ⊆ ℤ) → ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶ℤ)
76	73, 74, 75	mp2an 692	. . . . . 6 ⊢ ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶ℤ
77	76	a1i 11	. . . . 5 ⊢ (𝑃 ∈ ℙ → ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶ℤ)
78		1ex 11130	. . . . . . 7 ⊢ 1 ∈ V
79	78	a1i 11	. . . . . 6 ⊢ (𝑃 ∈ ℙ → 1 ∈ V)
80	77, 67, 79	fdmfifsupp 9284	. . . . 5 ⊢ (𝑃 ∈ ℙ → ( I ↾ (1...(𝑃 − 1))) finSupp 1)
81	63, 66, 67, 70, 77, 80	gsumsubmcl 19816	. . . 4 ⊢ (𝑃 ∈ ℙ → (𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) ∈ ℤ)
82		1z 12523	. . . . 5 ⊢ 1 ∈ ℤ
83		znegcl 12528	. . . . 5 ⊢ (1 ∈ ℤ → -1 ∈ ℤ)
84	82, 83	mp1i 13	. . . 4 ⊢ (𝑃 ∈ ℙ → -1 ∈ ℤ)
85		moddvds 16192	. . . 4 ⊢ ((𝑃 ∈ ℕ ∧ (𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) ∈ ℤ ∧ -1 ∈ ℤ) → (((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃) = (-1 mod 𝑃) ↔ 𝑃 ∥ ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) − -1)))
86	11, 81, 84, 85	syl3anc 1373	. . 3 ⊢ (𝑃 ∈ ℙ → (((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) mod 𝑃) = (-1 mod 𝑃) ↔ 𝑃 ∥ ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) − -1)))
87	61, 86	mpbid 232	. 2 ⊢ (𝑃 ∈ ℙ → 𝑃 ∥ ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) − -1))
88		fcoi1 6702	. . . . . . . . . 10 ⊢ (( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶(1...(𝑃 − 1)) → (( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1)))) = ( I ↾ (1...(𝑃 − 1))))
89	73, 88	ax-mp 5	. . . . . . . . 9 ⊢ (( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1)))) = ( I ↾ (1...(𝑃 − 1)))
90	89	fveq1i 6827	. . . . . . . 8 ⊢ ((( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1))))‘𝑘) = (( I ↾ (1...(𝑃 − 1)))‘𝑘)
91		fvres 6845	. . . . . . . 8 ⊢ (𝑘 ∈ (1...(𝑃 − 1)) → (( I ↾ (1...(𝑃 − 1)))‘𝑘) = ( I ‘𝑘))
92	90, 91	eqtrid 2776	. . . . . . 7 ⊢ (𝑘 ∈ (1...(𝑃 − 1)) → ((( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1))))‘𝑘) = ( I ‘𝑘))
93	92	adantl 481	. . . . . 6 ⊢ ((𝑃 ∈ ℙ ∧ 𝑘 ∈ (1...(𝑃 − 1))) → ((( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1))))‘𝑘) = ( I ‘𝑘))
94	5, 93	seqfveq 13951	. . . . 5 ⊢ (𝑃 ∈ ℙ → (seq1( · , (( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1)))))‘(𝑃 − 1)) = (seq1( · , I )‘(𝑃 − 1)))
95		cnfldbas 21283	. . . . . . 7 ⊢ ℂ = (Base‘ℂ_fld)
96	51, 95	mgpbas 20048	. . . . . 6 ⊢ ℂ = (Base‘𝑇)
97		cnfldmul 21287	. . . . . . 7 ⊢ · = (._r‘ℂ_fld)
98	51, 97	mgpplusg 20047	. . . . . 6 ⊢ · = (+_g‘𝑇)
99		eqid 2729	. . . . . 6 ⊢ (Cntz‘𝑇) = (Cntz‘𝑇)
100		cnring 21315	. . . . . . 7 ⊢ ℂ_fld ∈ Ring
101	51	ringmgp 20142	. . . . . . 7 ⊢ (ℂ_fld ∈ Ring → 𝑇 ∈ Mnd)
102	100, 101	mp1i 13	. . . . . 6 ⊢ (𝑃 ∈ ℙ → 𝑇 ∈ Mnd)
103		zsscn 12497	. . . . . . . 8 ⊢ ℤ ⊆ ℂ
104		fss 6672	. . . . . . . 8 ⊢ ((( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶ℤ ∧ ℤ ⊆ ℂ) → ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶ℂ)
105	76, 103, 104	mp2an 692	. . . . . . 7 ⊢ ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶ℂ
106	105	a1i 11	. . . . . 6 ⊢ (𝑃 ∈ ℙ → ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))⟶ℂ)
107	96, 99, 66, 106	cntzcmnf 19742	. . . . . 6 ⊢ (𝑃 ∈ ℙ → ran ( I ↾ (1...(𝑃 − 1))) ⊆ ((Cntz‘𝑇)‘ran ( I ↾ (1...(𝑃 − 1)))))
108		f1of1 6767	. . . . . . 7 ⊢ (( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))–1-1-onto→(1...(𝑃 − 1)) → ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))–1-1→(1...(𝑃 − 1)))
109	71, 108	mp1i 13	. . . . . 6 ⊢ (𝑃 ∈ ℙ → ( I ↾ (1...(𝑃 − 1))):(1...(𝑃 − 1))–1-1→(1...(𝑃 − 1)))
110		suppssdm 8117	. . . . . . . . 9 ⊢ (( I ↾ (1...(𝑃 − 1))) supp 1) ⊆ dom ( I ↾ (1...(𝑃 − 1)))
111		dmresi 6007	. . . . . . . . 9 ⊢ dom ( I ↾ (1...(𝑃 − 1))) = (1...(𝑃 − 1))
112	110, 111	sseqtri 3986	. . . . . . . 8 ⊢ (( I ↾ (1...(𝑃 − 1))) supp 1) ⊆ (1...(𝑃 − 1))
113		rnresi 6030	. . . . . . . 8 ⊢ ran ( I ↾ (1...(𝑃 − 1))) = (1...(𝑃 − 1))
114	112, 113	sseqtrri 3987	. . . . . . 7 ⊢ (( I ↾ (1...(𝑃 − 1))) supp 1) ⊆ ran ( I ↾ (1...(𝑃 − 1)))
115	114	a1i 11	. . . . . 6 ⊢ (𝑃 ∈ ℙ → (( I ↾ (1...(𝑃 − 1))) supp 1) ⊆ ran ( I ↾ (1...(𝑃 − 1))))
116		eqid 2729	. . . . . 6 ⊢ ((( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1)))) supp 1) = ((( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1)))) supp 1)
117	96, 63, 98, 99, 102, 67, 106, 107, 3, 109, 115, 116	gsumval3 19804	. . . . 5 ⊢ (𝑃 ∈ ℙ → (𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) = (seq1( · , (( I ↾ (1...(𝑃 − 1))) ∘ ( I ↾ (1...(𝑃 − 1)))))‘(𝑃 − 1)))
118		facnn 14200	. . . . . 6 ⊢ ((𝑃 − 1) ∈ ℕ → (!‘(𝑃 − 1)) = (seq1( · , I )‘(𝑃 − 1)))
119	3, 118	syl 17	. . . . 5 ⊢ (𝑃 ∈ ℙ → (!‘(𝑃 − 1)) = (seq1( · , I )‘(𝑃 − 1)))
120	94, 117, 119	3eqtr4d 2774	. . . 4 ⊢ (𝑃 ∈ ℙ → (𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) = (!‘(𝑃 − 1)))
121	120	oveq1d 7368	. . 3 ⊢ (𝑃 ∈ ℙ → ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) − -1) = ((!‘(𝑃 − 1)) − -1))
122		nnm1nn0 12443	. . . . . . 7 ⊢ (𝑃 ∈ ℕ → (𝑃 − 1) ∈ ℕ₀)
123	11, 122	syl 17	. . . . . 6 ⊢ (𝑃 ∈ ℙ → (𝑃 − 1) ∈ ℕ₀)
124	123	faccld 14209	. . . . 5 ⊢ (𝑃 ∈ ℙ → (!‘(𝑃 − 1)) ∈ ℕ)
125	124	nncnd 12162	. . . 4 ⊢ (𝑃 ∈ ℙ → (!‘(𝑃 − 1)) ∈ ℂ)
126		ax-1cn 11086	. . . 4 ⊢ 1 ∈ ℂ
127		subneg 11431	. . . 4 ⊢ (((!‘(𝑃 − 1)) ∈ ℂ ∧ 1 ∈ ℂ) → ((!‘(𝑃 − 1)) − -1) = ((!‘(𝑃 − 1)) + 1))
128	125, 126, 127	sylancl 586	. . 3 ⊢ (𝑃 ∈ ℙ → ((!‘(𝑃 − 1)) − -1) = ((!‘(𝑃 − 1)) + 1))
129	121, 128	eqtrd 2764	. 2 ⊢ (𝑃 ∈ ℙ → ((𝑇 Σ_g ( I ↾ (1...(𝑃 − 1)))) − -1) = ((!‘(𝑃 − 1)) + 1))
130	87, 129	breqtrd 5121	1 ⊢ (𝑃 ∈ ℙ → 𝑃 ∥ ((!‘(𝑃 − 1)) + 1))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1086 ∀wal 1538 = wceq 1540 ∈ wcel 2109 ∀wral 3044 {crab 3396 Vcvv 3438 ⊆ wss 3905 ⊊ wpss 3906 𝒫 cpw 4553 class class class wbr 5095 I cid 5517 dom cdm 5623 ran crn 5624 ↾ cres 5625 ∘ ccom 5627 ⟶wf 6482 –1-1→wf1 6483 –1-1-onto→wf1o 6485 ‘cfv 6486 (class class class)co 7353 supp csupp 8100 Fincfn 8879 ℂcc 11026 1c1 11029 + caddc 11031 · cmul 11033 − cmin 11365 -cneg 11366 ℕcn 12146 2c2 12201 ℕ₀cn0 12402 ℤcz 12489 ℤ_≥cuz 12753 ...cfz 13428 mod cmo 13791 seqcseq 13926 ↑cexp 13986 !cfa 14198 ∥ cdvds 16181 ℙcprime 16600 Σ_g cgsu 17362 Mndcmnd 18626 SubMndcsubmnd 18674 Cntzccntz 19212 CMndccmn 19677 mulGrpcmgp 20043 Ringcrg 20136 CRingccrg 20137 SubRingcsubrg 20472 ℂ_fldccnfld 21279

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 5221 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 ax-pre-sup 11106 ax-addf 11107 ax-mulf 11108

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 3345 df-reu 3346 df-rab 3397 df-v 3440 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-tp 4584 df-op 4586 df-uni 4862 df-int 4900 df-iun 4946 df-iin 4947 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5518 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-se 5577 df-we 5578 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-isom 6495 df-riota 7310 df-ov 7356 df-oprab 7357 df-mpo 7358 df-of 7617 df-om 7807 df-1st 7931 df-2nd 7932 df-supp 8101 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-1o 8395 df-2o 8396 df-oadd 8399 df-er 8632 df-en 8880 df-dom 8881 df-sdom 8882 df-fin 8883 df-fsupp 9271 df-sup 9351 df-inf 9352 df-oi 9421 df-dju 9816 df-card 9854 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11367 df-neg 11368 df-div 11796 df-nn 12147 df-2 12209 df-3 12210 df-4 12211 df-5 12212 df-6 12213 df-7 12214 df-8 12215 df-9 12216 df-n0 12403 df-xnn0 12476 df-z 12490 df-dec 12610 df-uz 12754 df-rp 12912 df-fz 13429 df-fzo 13576 df-fl 13714 df-mod 13792 df-seq 13927 df-exp 13987 df-fac 14199 df-hash 14256 df-cj 15024 df-re 15025 df-im 15026 df-sqrt 15160 df-abs 15161 df-dvds 16182 df-gcd 16424 df-prm 16601 df-phi 16695 df-struct 17076 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17139 df-ress 17160 df-plusg 17192 df-mulr 17193 df-starv 17194 df-tset 17198 df-ple 17199 df-ds 17201 df-unif 17202 df-0g 17363 df-gsum 17364 df-mre 17506 df-mrc 17507 df-acs 17509 df-mgm 18532 df-sgrp 18611 df-mnd 18627 df-submnd 18676 df-grp 18833 df-minusg 18834 df-mulg 18965 df-subg 19020 df-cntz 19214 df-cmn 19679 df-abl 19680 df-mgp 20044 df-rng 20056 df-ur 20085 df-ring 20138 df-cring 20139 df-subrng 20449 df-subrg 20473 df-cnfld 21280

This theorem is referenced by: wilth 26997

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