znidomb - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > znidomb		Structured version Visualization version GIF version

Theorem znidomb 21108

Description: The ℤ/nℤ structure is a domain (and hence a field) precisely when 𝑛 is prime. (Contributed by Mario Carneiro, 15-Jun-2015.)

**Hypothesis**
Ref	Expression
zntos.y	⊢ 𝑌 = (ℤ/nℤ‘𝑁)

**Assertion**
Ref	Expression
znidomb	⊢ (𝑁 ∈ ℕ → (𝑌 ∈ IDomn ↔ 𝑁 ∈ ℙ))

Proof of Theorem znidomb Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		2z 12590	. . . . . 6 ⊢ 2 ∈ ℤ
2	1	a1i 11	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → 2 ∈ ℤ)
3		nnz 12575	. . . . . 6 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℤ)
4	3	adantr 481	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → 𝑁 ∈ ℤ)
5		hash2 14361	. . . . . . 7 ⊢ (♯‘2_o) = 2
6		isidom 20914	. . . . . . . . . . . 12 ⊢ (𝑌 ∈ IDomn ↔ (𝑌 ∈ CRing ∧ 𝑌 ∈ Domn))
7	6	simprbi 497	. . . . . . . . . . 11 ⊢ (𝑌 ∈ IDomn → 𝑌 ∈ Domn)
8		domnnzr 20903	. . . . . . . . . . 11 ⊢ (𝑌 ∈ Domn → 𝑌 ∈ NzRing)
9	7, 8	syl 17	. . . . . . . . . 10 ⊢ (𝑌 ∈ IDomn → 𝑌 ∈ NzRing)
10		eqid 2732	. . . . . . . . . . . 12 ⊢ (Base‘𝑌) = (Base‘𝑌)
11	10	isnzr2 20289	. . . . . . . . . . 11 ⊢ (𝑌 ∈ NzRing ↔ (𝑌 ∈ Ring ∧ 2_o ≼ (Base‘𝑌)))
12	11	simprbi 497	. . . . . . . . . 10 ⊢ (𝑌 ∈ NzRing → 2_o ≼ (Base‘𝑌))
13	9, 12	syl 17	. . . . . . . . 9 ⊢ (𝑌 ∈ IDomn → 2_o ≼ (Base‘𝑌))
14	13	adantl 482	. . . . . . . 8 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → 2_o ≼ (Base‘𝑌))
15		df2o2 8471	. . . . . . . . . 10 ⊢ 2_o = {∅, {∅}}
16		prfi 9318	. . . . . . . . . 10 ⊢ {∅, {∅}} ∈ Fin
17	15, 16	eqeltri 2829	. . . . . . . . 9 ⊢ 2_o ∈ Fin
18		fvex 6901	. . . . . . . . 9 ⊢ (Base‘𝑌) ∈ V
19		hashdom 14335	. . . . . . . . 9 ⊢ ((2_o ∈ Fin ∧ (Base‘𝑌) ∈ V) → ((♯‘2_o) ≤ (♯‘(Base‘𝑌)) ↔ 2_o ≼ (Base‘𝑌)))
20	17, 18, 19	mp2an 690	. . . . . . . 8 ⊢ ((♯‘2_o) ≤ (♯‘(Base‘𝑌)) ↔ 2_o ≼ (Base‘𝑌))
21	14, 20	sylibr 233	. . . . . . 7 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → (♯‘2_o) ≤ (♯‘(Base‘𝑌)))
22	5, 21	eqbrtrrid 5183	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → 2 ≤ (♯‘(Base‘𝑌)))
23		zntos.y	. . . . . . . 8 ⊢ 𝑌 = (ℤ/nℤ‘𝑁)
24	23, 10	znhash 21105	. . . . . . 7 ⊢ (𝑁 ∈ ℕ → (♯‘(Base‘𝑌)) = 𝑁)
25	24	adantr 481	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → (♯‘(Base‘𝑌)) = 𝑁)
26	22, 25	breqtrd 5173	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → 2 ≤ 𝑁)
27		eluz2 12824	. . . . 5 ⊢ (𝑁 ∈ (ℤ_≥‘2) ↔ (2 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 2 ≤ 𝑁))
28	2, 4, 26, 27	syl3anbrc 1343	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → 𝑁 ∈ (ℤ_≥‘2))
29		nncn 12216	. . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℂ)
30	29	ad2antrr 724	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑁 ∈ ℂ)
31		nncn 12216	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ ℕ → 𝑥 ∈ ℂ)
32	31	ad2antrl 726	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑥 ∈ ℂ)
33		nnne0 12242	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ ℕ → 𝑥 ≠ 0)
34	33	ad2antrl 726	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑥 ≠ 0)
35	30, 32, 34	divcan1d 11987	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((𝑁 / 𝑥) · 𝑥) = 𝑁)
36	35	fveq2d 6892	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((ℤRHom‘𝑌)‘((𝑁 / 𝑥) · 𝑥)) = ((ℤRHom‘𝑌)‘𝑁))
37	7	ad2antlr 725	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑌 ∈ Domn)
38		domnring 20904	. . . . . . . . . . . 12 ⊢ (𝑌 ∈ Domn → 𝑌 ∈ Ring)
39	37, 38	syl 17	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑌 ∈ Ring)
40		eqid 2732	. . . . . . . . . . . 12 ⊢ (ℤRHom‘𝑌) = (ℤRHom‘𝑌)
41	40	zrhrhm 21052	. . . . . . . . . . 11 ⊢ (𝑌 ∈ Ring → (ℤRHom‘𝑌) ∈ (ℤ_ring RingHom 𝑌))
42	39, 41	syl 17	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (ℤRHom‘𝑌) ∈ (ℤ_ring RingHom 𝑌))
43		simprr 771	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑥 ∥ 𝑁)
44		nnz 12575	. . . . . . . . . . . . 13 ⊢ (𝑥 ∈ ℕ → 𝑥 ∈ ℤ)
45	44	ad2antrl 726	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑥 ∈ ℤ)
46	3	ad2antrr 724	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑁 ∈ ℤ)
47		dvdsval2 16196	. . . . . . . . . . . 12 ⊢ ((𝑥 ∈ ℤ ∧ 𝑥 ≠ 0 ∧ 𝑁 ∈ ℤ) → (𝑥 ∥ 𝑁 ↔ (𝑁 / 𝑥) ∈ ℤ))
48	45, 34, 46, 47	syl3anc 1371	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑥 ∥ 𝑁 ↔ (𝑁 / 𝑥) ∈ ℤ))
49	43, 48	mpbid 231	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑁 / 𝑥) ∈ ℤ)
50		zringbas 21015	. . . . . . . . . . 11 ⊢ ℤ = (Base‘ℤ_ring)
51		zringmulr 21018	. . . . . . . . . . 11 ⊢ · = (._r‘ℤ_ring)
52		eqid 2732	. . . . . . . . . . 11 ⊢ (._r‘𝑌) = (._r‘𝑌)
53	50, 51, 52	rhmmul 20256	. . . . . . . . . 10 ⊢ (((ℤRHom‘𝑌) ∈ (ℤ_ring RingHom 𝑌) ∧ (𝑁 / 𝑥) ∈ ℤ ∧ 𝑥 ∈ ℤ) → ((ℤRHom‘𝑌)‘((𝑁 / 𝑥) · 𝑥)) = (((ℤRHom‘𝑌)‘(𝑁 / 𝑥))(._r‘𝑌)((ℤRHom‘𝑌)‘𝑥)))
54	42, 49, 45, 53	syl3anc 1371	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((ℤRHom‘𝑌)‘((𝑁 / 𝑥) · 𝑥)) = (((ℤRHom‘𝑌)‘(𝑁 / 𝑥))(._r‘𝑌)((ℤRHom‘𝑌)‘𝑥)))
55		iddvds 16209	. . . . . . . . . . 11 ⊢ (𝑁 ∈ ℤ → 𝑁 ∥ 𝑁)
56	46, 55	syl 17	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑁 ∥ 𝑁)
57		nnnn0 12475	. . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ₀)
58	57	ad2antrr 724	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑁 ∈ ℕ₀)
59		eqid 2732	. . . . . . . . . . . 12 ⊢ (0_g‘𝑌) = (0_g‘𝑌)
60	23, 40, 59	zndvds0 21097	. . . . . . . . . . 11 ⊢ ((𝑁 ∈ ℕ₀ ∧ 𝑁 ∈ ℤ) → (((ℤRHom‘𝑌)‘𝑁) = (0_g‘𝑌) ↔ 𝑁 ∥ 𝑁))
61	58, 46, 60	syl2anc 584	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (((ℤRHom‘𝑌)‘𝑁) = (0_g‘𝑌) ↔ 𝑁 ∥ 𝑁))
62	56, 61	mpbird 256	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((ℤRHom‘𝑌)‘𝑁) = (0_g‘𝑌))
63	36, 54, 62	3eqtr3d 2780	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (((ℤRHom‘𝑌)‘(𝑁 / 𝑥))(._r‘𝑌)((ℤRHom‘𝑌)‘𝑥)) = (0_g‘𝑌))
64	50, 10	rhmf 20255	. . . . . . . . . . 11 ⊢ ((ℤRHom‘𝑌) ∈ (ℤ_ring RingHom 𝑌) → (ℤRHom‘𝑌):ℤ⟶(Base‘𝑌))
65	42, 64	syl 17	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (ℤRHom‘𝑌):ℤ⟶(Base‘𝑌))
66	65, 49	ffvelcdmd 7084	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) ∈ (Base‘𝑌))
67	65, 45	ffvelcdmd 7084	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((ℤRHom‘𝑌)‘𝑥) ∈ (Base‘𝑌))
68	10, 52, 59	domneq0 20905	. . . . . . . . 9 ⊢ ((𝑌 ∈ Domn ∧ ((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) ∈ (Base‘𝑌) ∧ ((ℤRHom‘𝑌)‘𝑥) ∈ (Base‘𝑌)) → ((((ℤRHom‘𝑌)‘(𝑁 / 𝑥))(._r‘𝑌)((ℤRHom‘𝑌)‘𝑥)) = (0_g‘𝑌) ↔ (((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) = (0_g‘𝑌) ∨ ((ℤRHom‘𝑌)‘𝑥) = (0_g‘𝑌))))
69	37, 66, 67, 68	syl3anc 1371	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((((ℤRHom‘𝑌)‘(𝑁 / 𝑥))(._r‘𝑌)((ℤRHom‘𝑌)‘𝑥)) = (0_g‘𝑌) ↔ (((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) = (0_g‘𝑌) ∨ ((ℤRHom‘𝑌)‘𝑥) = (0_g‘𝑌))))
70	63, 69	mpbid 231	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) = (0_g‘𝑌) ∨ ((ℤRHom‘𝑌)‘𝑥) = (0_g‘𝑌)))
71	23, 40, 59	zndvds0 21097	. . . . . . . . . 10 ⊢ ((𝑁 ∈ ℕ₀ ∧ (𝑁 / 𝑥) ∈ ℤ) → (((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) = (0_g‘𝑌) ↔ 𝑁 ∥ (𝑁 / 𝑥)))
72	58, 49, 71	syl2anc 584	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) = (0_g‘𝑌) ↔ 𝑁 ∥ (𝑁 / 𝑥)))
73		nnre 12215	. . . . . . . . . . . . . 14 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ)
74	73	ad2antrr 724	. . . . . . . . . . . . 13 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑁 ∈ ℝ)
75		nnre 12215	. . . . . . . . . . . . . 14 ⊢ (𝑥 ∈ ℕ → 𝑥 ∈ ℝ)
76	75	ad2antrl 726	. . . . . . . . . . . . 13 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑥 ∈ ℝ)
77		nngt0 12239	. . . . . . . . . . . . . 14 ⊢ (𝑁 ∈ ℕ → 0 < 𝑁)
78	77	ad2antrr 724	. . . . . . . . . . . . 13 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 0 < 𝑁)
79		nngt0 12239	. . . . . . . . . . . . . 14 ⊢ (𝑥 ∈ ℕ → 0 < 𝑥)
80	79	ad2antrl 726	. . . . . . . . . . . . 13 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 0 < 𝑥)
81	74, 76, 78, 80	divgt0d 12145	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 0 < (𝑁 / 𝑥))
82		elnnz 12564	. . . . . . . . . . . 12 ⊢ ((𝑁 / 𝑥) ∈ ℕ ↔ ((𝑁 / 𝑥) ∈ ℤ ∧ 0 < (𝑁 / 𝑥)))
83	49, 81, 82	sylanbrc 583	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑁 / 𝑥) ∈ ℕ)
84		dvdsle 16249	. . . . . . . . . . 11 ⊢ ((𝑁 ∈ ℤ ∧ (𝑁 / 𝑥) ∈ ℕ) → (𝑁 ∥ (𝑁 / 𝑥) → 𝑁 ≤ (𝑁 / 𝑥)))
85	46, 83, 84	syl2anc 584	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑁 ∥ (𝑁 / 𝑥) → 𝑁 ≤ (𝑁 / 𝑥)))
86		1red 11211	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 1 ∈ ℝ)
87		0lt1 11732	. . . . . . . . . . . . 13 ⊢ 0 < 1
88	87	a1i 11	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 0 < 1)
89		lediv2 12100	. . . . . . . . . . . 12 ⊢ (((𝑥 ∈ ℝ ∧ 0 < 𝑥) ∧ (1 ∈ ℝ ∧ 0 < 1) ∧ (𝑁 ∈ ℝ ∧ 0 < 𝑁)) → (𝑥 ≤ 1 ↔ (𝑁 / 1) ≤ (𝑁 / 𝑥)))
90	76, 80, 86, 88, 74, 78, 89	syl222anc 1386	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑥 ≤ 1 ↔ (𝑁 / 1) ≤ (𝑁 / 𝑥)))
91		nnle1eq1 12238	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ ℕ → (𝑥 ≤ 1 ↔ 𝑥 = 1))
92	91	ad2antrl 726	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑥 ≤ 1 ↔ 𝑥 = 1))
93	30	div1d 11978	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑁 / 1) = 𝑁)
94	93	breq1d 5157	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((𝑁 / 1) ≤ (𝑁 / 𝑥) ↔ 𝑁 ≤ (𝑁 / 𝑥)))
95	90, 92, 94	3bitr3rd 309	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑁 ≤ (𝑁 / 𝑥) ↔ 𝑥 = 1))
96	85, 95	sylibd 238	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑁 ∥ (𝑁 / 𝑥) → 𝑥 = 1))
97	72, 96	sylbid 239	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) = (0_g‘𝑌) → 𝑥 = 1))
98	23, 40, 59	zndvds0 21097	. . . . . . . . . 10 ⊢ ((𝑁 ∈ ℕ₀ ∧ 𝑥 ∈ ℤ) → (((ℤRHom‘𝑌)‘𝑥) = (0_g‘𝑌) ↔ 𝑁 ∥ 𝑥))
99	58, 45, 98	syl2anc 584	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (((ℤRHom‘𝑌)‘𝑥) = (0_g‘𝑌) ↔ 𝑁 ∥ 𝑥))
100		nnnn0 12475	. . . . . . . . . . 11 ⊢ (𝑥 ∈ ℕ → 𝑥 ∈ ℕ₀)
101	100	ad2antrl 726	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → 𝑥 ∈ ℕ₀)
102		dvdseq 16253	. . . . . . . . . . 11 ⊢ (((𝑥 ∈ ℕ₀ ∧ 𝑁 ∈ ℕ₀) ∧ (𝑥 ∥ 𝑁 ∧ 𝑁 ∥ 𝑥)) → 𝑥 = 𝑁)
103	102	expr 457	. . . . . . . . . 10 ⊢ (((𝑥 ∈ ℕ₀ ∧ 𝑁 ∈ ℕ₀) ∧ 𝑥 ∥ 𝑁) → (𝑁 ∥ 𝑥 → 𝑥 = 𝑁))
104	101, 58, 43, 103	syl21anc 836	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑁 ∥ 𝑥 → 𝑥 = 𝑁))
105	99, 104	sylbid 239	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (((ℤRHom‘𝑌)‘𝑥) = (0_g‘𝑌) → 𝑥 = 𝑁))
106	97, 105	orim12d 963	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → ((((ℤRHom‘𝑌)‘(𝑁 / 𝑥)) = (0_g‘𝑌) ∨ ((ℤRHom‘𝑌)‘𝑥) = (0_g‘𝑌)) → (𝑥 = 1 ∨ 𝑥 = 𝑁)))
107	70, 106	mpd 15	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ (𝑥 ∈ ℕ ∧ 𝑥 ∥ 𝑁)) → (𝑥 = 1 ∨ 𝑥 = 𝑁))
108	107	expr 457	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) ∧ 𝑥 ∈ ℕ) → (𝑥 ∥ 𝑁 → (𝑥 = 1 ∨ 𝑥 = 𝑁)))
109	108	ralrimiva 3146	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → ∀𝑥 ∈ ℕ (𝑥 ∥ 𝑁 → (𝑥 = 1 ∨ 𝑥 = 𝑁)))
110		isprm2 16615	. . . 4 ⊢ (𝑁 ∈ ℙ ↔ (𝑁 ∈ (ℤ_≥‘2) ∧ ∀𝑥 ∈ ℕ (𝑥 ∥ 𝑁 → (𝑥 = 1 ∨ 𝑥 = 𝑁))))
111	28, 109, 110	sylanbrc 583	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝑌 ∈ IDomn) → 𝑁 ∈ ℙ)
112	111	ex 413	. 2 ⊢ (𝑁 ∈ ℕ → (𝑌 ∈ IDomn → 𝑁 ∈ ℙ))
113	23	znfld 21107	. . 3 ⊢ (𝑁 ∈ ℙ → 𝑌 ∈ Field)
114		fldidom 20915	. . 3 ⊢ (𝑌 ∈ Field → 𝑌 ∈ IDomn)
115	113, 114	syl 17	. 2 ⊢ (𝑁 ∈ ℙ → 𝑌 ∈ IDomn)
116	112, 115	impbid1 224	1 ⊢ (𝑁 ∈ ℕ → (𝑌 ∈ IDomn ↔ 𝑁 ∈ ℙ))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∨ wo 845 = wceq 1541 ∈ wcel 2106 ≠ wne 2940 ∀wral 3061 Vcvv 3474 ∅c0 4321 {csn 4627 {cpr 4629 class class class wbr 5147 ⟶wf 6536 ‘cfv 6540 (class class class)co 7405 2_oc2o 8456 ≼ cdom 8933 Fincfn 8935 ℂcc 11104 ℝcr 11105 0cc0 11106 1c1 11107 · cmul 11111 < clt 11244 ≤ cle 11245 / cdiv 11867 ℕcn 12208 2c2 12263 ℕ₀cn0 12468 ℤcz 12554 ℤ_≥cuz 12818 ♯chash 14286 ∥ cdvds 16193 ℙcprime 16604 Basecbs 17140 ._rcmulr 17194 0_gc0g 17381 Ringcrg 20049 CRingccrg 20050 RingHom crh 20240 NzRingcnzr 20283 Fieldcfield 20308 Domncdomn 20888 IDomncidom 20889 ℤ_ringczring 21009 ℤRHomczrh 21040 ℤ/nℤczn 21043

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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184 ax-addf 11185 ax-mulf 11186

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 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-tp 4632 df-op 4634 df-uni 4908 df-int 4950 df-iun 4998 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-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 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7852 df-1st 7971 df-2nd 7972 df-tpos 8207 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-1o 8462 df-2o 8463 df-oadd 8466 df-er 8699 df-ec 8701 df-qs 8705 df-map 8818 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-sup 9433 df-inf 9434 df-dju 9892 df-card 9930 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-div 11868 df-nn 12209 df-2 12271 df-3 12272 df-4 12273 df-5 12274 df-6 12275 df-7 12276 df-8 12277 df-9 12278 df-n0 12469 df-xnn0 12541 df-z 12555 df-dec 12674 df-uz 12819 df-rp 12971 df-fz 13481 df-fzo 13624 df-fl 13753 df-mod 13831 df-seq 13963 df-exp 14024 df-hash 14287 df-cj 15042 df-re 15043 df-im 15044 df-sqrt 15178 df-abs 15179 df-dvds 16194 df-gcd 16432 df-prm 16605 df-struct 17076 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17141 df-ress 17170 df-plusg 17206 df-mulr 17207 df-starv 17208 df-sca 17209 df-vsca 17210 df-ip 17211 df-tset 17212 df-ple 17213 df-ds 17215 df-unif 17216 df-0g 17383 df-imas 17450 df-qus 17451 df-mgm 18557 df-sgrp 18606 df-mnd 18622 df-mhm 18667 df-grp 18818 df-minusg 18819 df-sbg 18820 df-mulg 18945 df-subg 18997 df-nsg 18998 df-eqg 18999 df-ghm 19084 df-cmn 19644 df-abl 19645 df-mgp 19982 df-ur 19999 df-ring 20051 df-cring 20052 df-oppr 20142 df-dvdsr 20163 df-unit 20164 df-invr 20194 df-rnghom 20243 df-nzr 20284 df-drng 20309 df-field 20310 df-subrg 20353 df-lmod 20465 df-lss 20535 df-lsp 20575 df-sra 20777 df-rgmod 20778 df-lidl 20779 df-rsp 20780 df-2idl 20849 df-rlreg 20891 df-domn 20892 df-idom 20893 df-cnfld 20937 df-zring 21010 df-zrh 21044 df-zn 21047

This theorem is referenced by: (None)

W3C validator