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Theorem mulgass2 20281

Description: An associative property between group multiple and ring multiplication. (Contributed by Mario Carneiro, 14-Jun-2015.)

**Hypotheses**
Ref	Expression
mulgass2.b	⊢ 𝐵 = (Base‘𝑅)
mulgass2.m	⊢ · = (._g‘𝑅)
mulgass2.t	⊢ × = (._r‘𝑅)

**Assertion**
Ref	Expression
mulgass2	⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → ((𝑁 · 𝑋) × 𝑌) = (𝑁 · (𝑋 × 𝑌)))

Proof of Theorem mulgass2 Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		oveq1 7367	. . . . . . 7 ⊢ (𝑥 = 0 → (𝑥 · 𝑋) = (0 · 𝑋))
2	1	oveq1d 7375	. . . . . 6 ⊢ (𝑥 = 0 → ((𝑥 · 𝑋) × 𝑌) = ((0 · 𝑋) × 𝑌))
3		oveq1 7367	. . . . . 6 ⊢ (𝑥 = 0 → (𝑥 · (𝑋 × 𝑌)) = (0 · (𝑋 × 𝑌)))
4	2, 3	eqeq12d 2753	. . . . 5 ⊢ (𝑥 = 0 → (((𝑥 · 𝑋) × 𝑌) = (𝑥 · (𝑋 × 𝑌)) ↔ ((0 · 𝑋) × 𝑌) = (0 · (𝑋 × 𝑌))))
5		oveq1 7367	. . . . . . 7 ⊢ (𝑥 = 𝑦 → (𝑥 · 𝑋) = (𝑦 · 𝑋))
6	5	oveq1d 7375	. . . . . 6 ⊢ (𝑥 = 𝑦 → ((𝑥 · 𝑋) × 𝑌) = ((𝑦 · 𝑋) × 𝑌))
7		oveq1 7367	. . . . . 6 ⊢ (𝑥 = 𝑦 → (𝑥 · (𝑋 × 𝑌)) = (𝑦 · (𝑋 × 𝑌)))
8	6, 7	eqeq12d 2753	. . . . 5 ⊢ (𝑥 = 𝑦 → (((𝑥 · 𝑋) × 𝑌) = (𝑥 · (𝑋 × 𝑌)) ↔ ((𝑦 · 𝑋) × 𝑌) = (𝑦 · (𝑋 × 𝑌))))
9		oveq1 7367	. . . . . . 7 ⊢ (𝑥 = (𝑦 + 1) → (𝑥 · 𝑋) = ((𝑦 + 1) · 𝑋))
10	9	oveq1d 7375	. . . . . 6 ⊢ (𝑥 = (𝑦 + 1) → ((𝑥 · 𝑋) × 𝑌) = (((𝑦 + 1) · 𝑋) × 𝑌))
11		oveq1 7367	. . . . . 6 ⊢ (𝑥 = (𝑦 + 1) → (𝑥 · (𝑋 × 𝑌)) = ((𝑦 + 1) · (𝑋 × 𝑌)))
12	10, 11	eqeq12d 2753	. . . . 5 ⊢ (𝑥 = (𝑦 + 1) → (((𝑥 · 𝑋) × 𝑌) = (𝑥 · (𝑋 × 𝑌)) ↔ (((𝑦 + 1) · 𝑋) × 𝑌) = ((𝑦 + 1) · (𝑋 × 𝑌))))
13		oveq1 7367	. . . . . . 7 ⊢ (𝑥 = -𝑦 → (𝑥 · 𝑋) = (-𝑦 · 𝑋))
14	13	oveq1d 7375	. . . . . 6 ⊢ (𝑥 = -𝑦 → ((𝑥 · 𝑋) × 𝑌) = ((-𝑦 · 𝑋) × 𝑌))
15		oveq1 7367	. . . . . 6 ⊢ (𝑥 = -𝑦 → (𝑥 · (𝑋 × 𝑌)) = (-𝑦 · (𝑋 × 𝑌)))
16	14, 15	eqeq12d 2753	. . . . 5 ⊢ (𝑥 = -𝑦 → (((𝑥 · 𝑋) × 𝑌) = (𝑥 · (𝑋 × 𝑌)) ↔ ((-𝑦 · 𝑋) × 𝑌) = (-𝑦 · (𝑋 × 𝑌))))
17		oveq1 7367	. . . . . . 7 ⊢ (𝑥 = 𝑁 → (𝑥 · 𝑋) = (𝑁 · 𝑋))
18	17	oveq1d 7375	. . . . . 6 ⊢ (𝑥 = 𝑁 → ((𝑥 · 𝑋) × 𝑌) = ((𝑁 · 𝑋) × 𝑌))
19		oveq1 7367	. . . . . 6 ⊢ (𝑥 = 𝑁 → (𝑥 · (𝑋 × 𝑌)) = (𝑁 · (𝑋 × 𝑌)))
20	18, 19	eqeq12d 2753	. . . . 5 ⊢ (𝑥 = 𝑁 → (((𝑥 · 𝑋) × 𝑌) = (𝑥 · (𝑋 × 𝑌)) ↔ ((𝑁 · 𝑋) × 𝑌) = (𝑁 · (𝑋 × 𝑌))))
21		mulgass2.b	. . . . . . . 8 ⊢ 𝐵 = (Base‘𝑅)
22		mulgass2.t	. . . . . . . 8 ⊢ × = (._r‘𝑅)
23		eqid 2737	. . . . . . . 8 ⊢ (0_g‘𝑅) = (0_g‘𝑅)
24	21, 22, 23	ringlz 20265	. . . . . . 7 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵) → ((0_g‘𝑅) × 𝑌) = (0_g‘𝑅))
25	24	3adant3 1133	. . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ((0_g‘𝑅) × 𝑌) = (0_g‘𝑅))
26		simp3 1139	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → 𝑋 ∈ 𝐵)
27		mulgass2.m	. . . . . . . . 9 ⊢ · = (._g‘𝑅)
28	21, 23, 27	mulg0 19041	. . . . . . . 8 ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = (0_g‘𝑅))
29	26, 28	syl 17	. . . . . . 7 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = (0_g‘𝑅))
30	29	oveq1d 7375	. . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ((0 · 𝑋) × 𝑌) = ((0_g‘𝑅) × 𝑌))
31	21, 22	ringcl 20222	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 × 𝑌) ∈ 𝐵)
32	31	3com23 1127	. . . . . . 7 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (𝑋 × 𝑌) ∈ 𝐵)
33	21, 23, 27	mulg0 19041	. . . . . . 7 ⊢ ((𝑋 × 𝑌) ∈ 𝐵 → (0 · (𝑋 × 𝑌)) = (0_g‘𝑅))
34	32, 33	syl 17	. . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (0 · (𝑋 × 𝑌)) = (0_g‘𝑅))
35	25, 30, 34	3eqtr4d 2782	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ((0 · 𝑋) × 𝑌) = (0 · (𝑋 × 𝑌)))
36		oveq1 7367	. . . . . . 7 ⊢ (((𝑦 · 𝑋) × 𝑌) = (𝑦 · (𝑋 × 𝑌)) → (((𝑦 · 𝑋) × 𝑌)(+_g‘𝑅)(𝑋 × 𝑌)) = ((𝑦 · (𝑋 × 𝑌))(+_g‘𝑅)(𝑋 × 𝑌)))
37		simpl1 1193	. . . . . . . . . . . 12 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → 𝑅 ∈ Ring)
38		ringgrp 20210	. . . . . . . . . . . 12 ⊢ (𝑅 ∈ Ring → 𝑅 ∈ Grp)
39	37, 38	syl 17	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → 𝑅 ∈ Grp)
40		nn0z 12539	. . . . . . . . . . . 12 ⊢ (𝑦 ∈ ℕ₀ → 𝑦 ∈ ℤ)
41	40	adantl 481	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → 𝑦 ∈ ℤ)
42	26	adantr 480	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → 𝑋 ∈ 𝐵)
43		eqid 2737	. . . . . . . . . . . 12 ⊢ (+_g‘𝑅) = (+_g‘𝑅)
44	21, 27, 43	mulgp1 19074	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Grp ∧ 𝑦 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → ((𝑦 + 1) · 𝑋) = ((𝑦 · 𝑋)(+_g‘𝑅)𝑋))
45	39, 41, 42, 44	syl3anc 1374	. . . . . . . . . 10 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → ((𝑦 + 1) · 𝑋) = ((𝑦 · 𝑋)(+_g‘𝑅)𝑋))
46	45	oveq1d 7375	. . . . . . . . 9 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → (((𝑦 + 1) · 𝑋) × 𝑌) = (((𝑦 · 𝑋)(+_g‘𝑅)𝑋) × 𝑌))
47	38	3ad2ant1 1134	. . . . . . . . . . . 12 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → 𝑅 ∈ Grp)
48	47	adantr 480	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → 𝑅 ∈ Grp)
49	21, 27	mulgcl 19058	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Grp ∧ 𝑦 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (𝑦 · 𝑋) ∈ 𝐵)
50	48, 41, 42, 49	syl3anc 1374	. . . . . . . . . 10 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → (𝑦 · 𝑋) ∈ 𝐵)
51		simpl2 1194	. . . . . . . . . 10 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → 𝑌 ∈ 𝐵)
52	21, 43, 22	ringdir 20234	. . . . . . . . . 10 ⊢ ((𝑅 ∈ Ring ∧ ((𝑦 · 𝑋) ∈ 𝐵 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (((𝑦 · 𝑋)(+_g‘𝑅)𝑋) × 𝑌) = (((𝑦 · 𝑋) × 𝑌)(+_g‘𝑅)(𝑋 × 𝑌)))
53	37, 50, 42, 51, 52	syl13anc 1375	. . . . . . . . 9 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → (((𝑦 · 𝑋)(+_g‘𝑅)𝑋) × 𝑌) = (((𝑦 · 𝑋) × 𝑌)(+_g‘𝑅)(𝑋 × 𝑌)))
54	46, 53	eqtrd 2772	. . . . . . . 8 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → (((𝑦 + 1) · 𝑋) × 𝑌) = (((𝑦 · 𝑋) × 𝑌)(+_g‘𝑅)(𝑋 × 𝑌)))
55	32	adantr 480	. . . . . . . . 9 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → (𝑋 × 𝑌) ∈ 𝐵)
56	21, 27, 43	mulgp1 19074	. . . . . . . . 9 ⊢ ((𝑅 ∈ Grp ∧ 𝑦 ∈ ℤ ∧ (𝑋 × 𝑌) ∈ 𝐵) → ((𝑦 + 1) · (𝑋 × 𝑌)) = ((𝑦 · (𝑋 × 𝑌))(+_g‘𝑅)(𝑋 × 𝑌)))
57	39, 41, 55, 56	syl3anc 1374	. . . . . . . 8 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → ((𝑦 + 1) · (𝑋 × 𝑌)) = ((𝑦 · (𝑋 × 𝑌))(+_g‘𝑅)(𝑋 × 𝑌)))
58	54, 57	eqeq12d 2753	. . . . . . 7 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → ((((𝑦 + 1) · 𝑋) × 𝑌) = ((𝑦 + 1) · (𝑋 × 𝑌)) ↔ (((𝑦 · 𝑋) × 𝑌)(+_g‘𝑅)(𝑋 × 𝑌)) = ((𝑦 · (𝑋 × 𝑌))(+_g‘𝑅)(𝑋 × 𝑌))))
59	36, 58	imbitrrid 246	. . . . . 6 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ₀) → (((𝑦 · 𝑋) × 𝑌) = (𝑦 · (𝑋 × 𝑌)) → (((𝑦 + 1) · 𝑋) × 𝑌) = ((𝑦 + 1) · (𝑋 × 𝑌))))
60	59	ex 412	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (𝑦 ∈ ℕ₀ → (((𝑦 · 𝑋) × 𝑌) = (𝑦 · (𝑋 × 𝑌)) → (((𝑦 + 1) · 𝑋) × 𝑌) = ((𝑦 + 1) · (𝑋 × 𝑌)))))
61		fveq2 6834	. . . . . . 7 ⊢ (((𝑦 · 𝑋) × 𝑌) = (𝑦 · (𝑋 × 𝑌)) → ((inv_g‘𝑅)‘((𝑦 · 𝑋) × 𝑌)) = ((inv_g‘𝑅)‘(𝑦 · (𝑋 × 𝑌))))
62	47	adantr 480	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → 𝑅 ∈ Grp)
63		nnz 12536	. . . . . . . . . . . 12 ⊢ (𝑦 ∈ ℕ → 𝑦 ∈ ℤ)
64	63	adantl 481	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → 𝑦 ∈ ℤ)
65	26	adantr 480	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → 𝑋 ∈ 𝐵)
66		eqid 2737	. . . . . . . . . . . 12 ⊢ (inv_g‘𝑅) = (inv_g‘𝑅)
67	21, 27, 66	mulgneg 19059	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Grp ∧ 𝑦 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (-𝑦 · 𝑋) = ((inv_g‘𝑅)‘(𝑦 · 𝑋)))
68	62, 64, 65, 67	syl3anc 1374	. . . . . . . . . 10 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → (-𝑦 · 𝑋) = ((inv_g‘𝑅)‘(𝑦 · 𝑋)))
69	68	oveq1d 7375	. . . . . . . . 9 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → ((-𝑦 · 𝑋) × 𝑌) = (((inv_g‘𝑅)‘(𝑦 · 𝑋)) × 𝑌))
70		simpl1 1193	. . . . . . . . . 10 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → 𝑅 ∈ Ring)
71	62, 64, 65, 49	syl3anc 1374	. . . . . . . . . 10 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → (𝑦 · 𝑋) ∈ 𝐵)
72		simpl2 1194	. . . . . . . . . 10 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → 𝑌 ∈ 𝐵)
73	21, 22, 66, 70, 71, 72	ringmneg1 20276	. . . . . . . . 9 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → (((inv_g‘𝑅)‘(𝑦 · 𝑋)) × 𝑌) = ((inv_g‘𝑅)‘((𝑦 · 𝑋) × 𝑌)))
74	69, 73	eqtrd 2772	. . . . . . . 8 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → ((-𝑦 · 𝑋) × 𝑌) = ((inv_g‘𝑅)‘((𝑦 · 𝑋) × 𝑌)))
75	32	adantr 480	. . . . . . . . 9 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → (𝑋 × 𝑌) ∈ 𝐵)
76	21, 27, 66	mulgneg 19059	. . . . . . . . 9 ⊢ ((𝑅 ∈ Grp ∧ 𝑦 ∈ ℤ ∧ (𝑋 × 𝑌) ∈ 𝐵) → (-𝑦 · (𝑋 × 𝑌)) = ((inv_g‘𝑅)‘(𝑦 · (𝑋 × 𝑌))))
77	62, 64, 75, 76	syl3anc 1374	. . . . . . . 8 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → (-𝑦 · (𝑋 × 𝑌)) = ((inv_g‘𝑅)‘(𝑦 · (𝑋 × 𝑌))))
78	74, 77	eqeq12d 2753	. . . . . . 7 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → (((-𝑦 · 𝑋) × 𝑌) = (-𝑦 · (𝑋 × 𝑌)) ↔ ((inv_g‘𝑅)‘((𝑦 · 𝑋) × 𝑌)) = ((inv_g‘𝑅)‘(𝑦 · (𝑋 × 𝑌)))))
79	61, 78	imbitrrid 246	. . . . . 6 ⊢ (((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑦 ∈ ℕ) → (((𝑦 · 𝑋) × 𝑌) = (𝑦 · (𝑋 × 𝑌)) → ((-𝑦 · 𝑋) × 𝑌) = (-𝑦 · (𝑋 × 𝑌))))
80	79	ex 412	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (𝑦 ∈ ℕ → (((𝑦 · 𝑋) × 𝑌) = (𝑦 · (𝑋 × 𝑌)) → ((-𝑦 · 𝑋) × 𝑌) = (-𝑦 · (𝑋 × 𝑌)))))
81	4, 8, 12, 16, 20, 35, 60, 80	zindd 12621	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (𝑁 ∈ ℤ → ((𝑁 · 𝑋) × 𝑌) = (𝑁 · (𝑋 × 𝑌))))
82	81	3exp 1120	. . 3 ⊢ (𝑅 ∈ Ring → (𝑌 ∈ 𝐵 → (𝑋 ∈ 𝐵 → (𝑁 ∈ ℤ → ((𝑁 · 𝑋) × 𝑌) = (𝑁 · (𝑋 × 𝑌))))))
83	82	com24 95	. 2 ⊢ (𝑅 ∈ Ring → (𝑁 ∈ ℤ → (𝑋 ∈ 𝐵 → (𝑌 ∈ 𝐵 → ((𝑁 · 𝑋) × 𝑌) = (𝑁 · (𝑋 × 𝑌))))))
84	83	3imp2 1351	1 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → ((𝑁 · 𝑋) × 𝑌) = (𝑁 · (𝑋 × 𝑌)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ‘cfv 6492 (class class class)co 7360 0cc0 11029 1c1 11030 + caddc 11032 -cneg 11369 ℕcn 12165 ℕ₀cn0 12428 ℤcz 12515 Basecbs 17170 +_gcplusg 17211 ._rcmulr 17212 0_gc0g 17393 Grpcgrp 18900 inv_gcminusg 18901 ._gcmg 19034 Ringcrg 20205

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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106

This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12166 df-2 12235 df-n0 12429 df-z 12516 df-uz 12780 df-fz 13453 df-seq 13955 df-sets 17125 df-slot 17143 df-ndx 17155 df-base 17171 df-plusg 17224 df-0g 17395 df-mgm 18599 df-sgrp 18678 df-mnd 18694 df-grp 18903 df-minusg 18904 df-mulg 19035 df-cmn 19748 df-abl 19749 df-mgp 20113 df-rng 20125 df-ur 20154 df-ring 20207

This theorem is referenced by: mulgass3 20324 mulgrhm 21467 dvdschrmulg 21518 zlmassa 21893 psdmul 22142 psdpw 22146 isarchiofld 33275 elrgspnlem2 33319 elrgspnsubrunlem2 33324 elrspunidl 33503

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