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Theorem srgbinomlem 20125

Description: Lemma for srgbinom 20126. Inductive step, analogous to binomlem 15772. (Contributed by AV, 24-Aug-2019.)

**Hypotheses**
Ref	Expression
srgbinom.s	⊢ 𝑆 = (Base‘𝑅)
srgbinom.m	⊢ × = (._r‘𝑅)
srgbinom.t	⊢ · = (._g‘𝑅)
srgbinom.a	⊢ + = (+_g‘𝑅)
srgbinom.g	⊢ 𝐺 = (mulGrp‘𝑅)
srgbinom.e	⊢ ↑ = (._g‘𝐺)
srgbinomlem.r	⊢ (𝜑 → 𝑅 ∈ SRing)
srgbinomlem.a	⊢ (𝜑 → 𝐴 ∈ 𝑆)
srgbinomlem.b	⊢ (𝜑 → 𝐵 ∈ 𝑆)
srgbinomlem.c	⊢ (𝜑 → (𝐴 × 𝐵) = (𝐵 × 𝐴))
srgbinomlem.n	⊢ (𝜑 → 𝑁 ∈ ℕ₀)
srgbinomlem.i	⊢ (𝜓 → (𝑁 ↑ (𝐴 + 𝐵)) = (𝑅 Σ_g (𝑘 ∈ (0...𝑁) ↦ ((𝑁C𝑘) · (((𝑁 − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))))

**Assertion**
Ref	Expression
srgbinomlem	⊢ ((𝜑 ∧ 𝜓) → ((𝑁 + 1) ↑ (𝐴 + 𝐵)) = (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁 + 1)C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))))

Distinct variable groups: 𝐴,𝑘 𝐵,𝑘 𝑘,𝑁 𝑅,𝑘 𝑆,𝑘 · ,𝑘 × ,𝑘 ↑ ,𝑘 𝜑,𝑘 + ,𝑘 Allowed substitution hints: 𝜓(𝑘) 𝐺(𝑘)

**Proof of Theorem srgbinomlem**
Step	Hyp	Ref	Expression
1		srgbinom.s	. . . 4 ⊢ 𝑆 = (Base‘𝑅)
2		srgbinom.m	. . . 4 ⊢ × = (._r‘𝑅)
3		srgbinom.t	. . . 4 ⊢ · = (._g‘𝑅)
4		srgbinom.a	. . . 4 ⊢ + = (+_g‘𝑅)
5		srgbinom.g	. . . 4 ⊢ 𝐺 = (mulGrp‘𝑅)
6		srgbinom.e	. . . 4 ⊢ ↑ = (._g‘𝐺)
7		srgbinomlem.r	. . . 4 ⊢ (𝜑 → 𝑅 ∈ SRing)
8		srgbinomlem.a	. . . 4 ⊢ (𝜑 → 𝐴 ∈ 𝑆)
9		srgbinomlem.b	. . . 4 ⊢ (𝜑 → 𝐵 ∈ 𝑆)
10		srgbinomlem.c	. . . 4 ⊢ (𝜑 → (𝐴 × 𝐵) = (𝐵 × 𝐴))
11		srgbinomlem.n	. . . 4 ⊢ (𝜑 → 𝑁 ∈ ℕ₀)
12		srgbinomlem.i	. . . 4 ⊢ (𝜓 → (𝑁 ↑ (𝐴 + 𝐵)) = (𝑅 Σ_g (𝑘 ∈ (0...𝑁) ↦ ((𝑁C𝑘) · (((𝑁 − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))))
13	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12	srgbinomlem3 20123	. . 3 ⊢ ((𝜑 ∧ 𝜓) → ((𝑁 ↑ (𝐴 + 𝐵)) × 𝐴) = (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))))
14	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12	srgbinomlem4 20124	. . 3 ⊢ ((𝜑 ∧ 𝜓) → ((𝑁 ↑ (𝐴 + 𝐵)) × 𝐵) = (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))))
15	13, 14	oveq12d 7419	. 2 ⊢ ((𝜑 ∧ 𝜓) → (((𝑁 ↑ (𝐴 + 𝐵)) × 𝐴) + ((𝑁 ↑ (𝐴 + 𝐵)) × 𝐵)) = ((𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))) + (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))))
16	5	srgmgp 20086	. . . . . . 7 ⊢ (𝑅 ∈ SRing → 𝐺 ∈ Mnd)
17	7, 16	syl 17	. . . . . 6 ⊢ (𝜑 → 𝐺 ∈ Mnd)
18		srgmnd 20085	. . . . . . . 8 ⊢ (𝑅 ∈ SRing → 𝑅 ∈ Mnd)
19	7, 18	syl 17	. . . . . . 7 ⊢ (𝜑 → 𝑅 ∈ Mnd)
20	1, 4	mndcl 18665	. . . . . . 7 ⊢ ((𝑅 ∈ Mnd ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) → (𝐴 + 𝐵) ∈ 𝑆)
21	19, 8, 9, 20	syl3anc 1368	. . . . . 6 ⊢ (𝜑 → (𝐴 + 𝐵) ∈ 𝑆)
22	17, 11, 21	3jca 1125	. . . . 5 ⊢ (𝜑 → (𝐺 ∈ Mnd ∧ 𝑁 ∈ ℕ₀ ∧ (𝐴 + 𝐵) ∈ 𝑆))
23	22	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → (𝐺 ∈ Mnd ∧ 𝑁 ∈ ℕ₀ ∧ (𝐴 + 𝐵) ∈ 𝑆))
24	5, 1	mgpbas 20035	. . . . 5 ⊢ 𝑆 = (Base‘𝐺)
25	5, 2	mgpplusg 20033	. . . . 5 ⊢ × = (+_g‘𝐺)
26	24, 6, 25	mulgnn0p1 19002	. . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 𝑁 ∈ ℕ₀ ∧ (𝐴 + 𝐵) ∈ 𝑆) → ((𝑁 + 1) ↑ (𝐴 + 𝐵)) = ((𝑁 ↑ (𝐴 + 𝐵)) × (𝐴 + 𝐵)))
27	23, 26	syl 17	. . 3 ⊢ ((𝜑 ∧ 𝜓) → ((𝑁 + 1) ↑ (𝐴 + 𝐵)) = ((𝑁 ↑ (𝐴 + 𝐵)) × (𝐴 + 𝐵)))
28	24, 6, 17, 11, 21	mulgnn0cld 19012	. . . . . . 7 ⊢ (𝜑 → (𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆)
29	28, 8, 9	3jca 1125	. . . . . 6 ⊢ (𝜑 → ((𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆 ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆))
30	7, 29	jca 511	. . . . 5 ⊢ (𝜑 → (𝑅 ∈ SRing ∧ ((𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆 ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)))
31	30	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → (𝑅 ∈ SRing ∧ ((𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆 ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)))
32	1, 4, 2	srgdi 20092	. . . 4 ⊢ ((𝑅 ∈ SRing ∧ ((𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆 ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)) → ((𝑁 ↑ (𝐴 + 𝐵)) × (𝐴 + 𝐵)) = (((𝑁 ↑ (𝐴 + 𝐵)) × 𝐴) + ((𝑁 ↑ (𝐴 + 𝐵)) × 𝐵)))
33	31, 32	syl 17	. . 3 ⊢ ((𝜑 ∧ 𝜓) → ((𝑁 ↑ (𝐴 + 𝐵)) × (𝐴 + 𝐵)) = (((𝑁 ↑ (𝐴 + 𝐵)) × 𝐴) + ((𝑁 ↑ (𝐴 + 𝐵)) × 𝐵)))
34	27, 33	eqtrd 2764	. 2 ⊢ ((𝜑 ∧ 𝜓) → ((𝑁 + 1) ↑ (𝐴 + 𝐵)) = (((𝑁 ↑ (𝐴 + 𝐵)) × 𝐴) + ((𝑁 ↑ (𝐴 + 𝐵)) × 𝐵)))
35		elfzelz 13498	. . . . . . . . 9 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → 𝑘 ∈ ℤ)
36		bcpasc 14278	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ₀ ∧ 𝑘 ∈ ℤ) → ((𝑁C𝑘) + (𝑁C(𝑘 − 1))) = ((𝑁 + 1)C𝑘))
37	11, 35, 36	syl2an 595	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((𝑁C𝑘) + (𝑁C(𝑘 − 1))) = ((𝑁 + 1)C𝑘))
38	37	oveq1d 7416	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (((𝑁C𝑘) + (𝑁C(𝑘 − 1))) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) = (((𝑁 + 1)C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))
39	19	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑅 ∈ Mnd)
40		bccl 14279	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ₀ ∧ 𝑘 ∈ ℤ) → (𝑁C𝑘) ∈ ℕ₀)
41	11, 35, 40	syl2an 595	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑁C𝑘) ∈ ℕ₀)
42	35	adantl 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑘 ∈ ℤ)
43		peano2zm 12602	. . . . . . . . . 10 ⊢ (𝑘 ∈ ℤ → (𝑘 − 1) ∈ ℤ)
44	42, 43	syl 17	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑘 − 1) ∈ ℤ)
45		bccl 14279	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ₀ ∧ (𝑘 − 1) ∈ ℤ) → (𝑁C(𝑘 − 1)) ∈ ℕ₀)
46	11, 44, 45	syl2an2r 682	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑁C(𝑘 − 1)) ∈ ℕ₀)
47	7	adantr 480	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑅 ∈ SRing)
48	17	adantr 480	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝐺 ∈ Mnd)
49		fznn0sub 13530	. . . . . . . . . . 11 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → ((𝑁 + 1) − 𝑘) ∈ ℕ₀)
50	49	adantl 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((𝑁 + 1) − 𝑘) ∈ ℕ₀)
51	8	adantr 480	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝐴 ∈ 𝑆)
52	24, 6, 48, 50, 51	mulgnn0cld 19012	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (((𝑁 + 1) − 𝑘) ↑ 𝐴) ∈ 𝑆)
53		elfznn0 13591	. . . . . . . . . . 11 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → 𝑘 ∈ ℕ₀)
54	53	adantl 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑘 ∈ ℕ₀)
55	9	adantr 480	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝐵 ∈ 𝑆)
56	24, 6, 48, 54, 55	mulgnn0cld 19012	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑘 ↑ 𝐵) ∈ 𝑆)
57	1, 2	srgcl 20088	. . . . . . . . 9 ⊢ ((𝑅 ∈ SRing ∧ (((𝑁 + 1) − 𝑘) ↑ 𝐴) ∈ 𝑆 ∧ (𝑘 ↑ 𝐵) ∈ 𝑆) → ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)) ∈ 𝑆)
58	47, 52, 56, 57	syl3anc 1368	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)) ∈ 𝑆)
59	1, 3, 4	mulgnn0dir 19021	. . . . . . . 8 ⊢ ((𝑅 ∈ Mnd ∧ ((𝑁C𝑘) ∈ ℕ₀ ∧ (𝑁C(𝑘 − 1)) ∈ ℕ₀ ∧ ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)) ∈ 𝑆)) → (((𝑁C𝑘) + (𝑁C(𝑘 − 1))) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) = (((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) + ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))
60	39, 41, 46, 58, 59	syl13anc 1369	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (((𝑁C𝑘) + (𝑁C(𝑘 − 1))) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) = (((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) + ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))
61	38, 60	eqtr3d 2766	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (((𝑁 + 1)C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) = (((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) + ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))
62	61	mpteq2dva 5238	. . . . 5 ⊢ (𝜑 → (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁 + 1)C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))) = (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) + ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))))
63	62	oveq2d 7417	. . . 4 ⊢ (𝜑 → (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁 + 1)C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))) = (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) + ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))))
64		srgcmn 20084	. . . . . 6 ⊢ (𝑅 ∈ SRing → 𝑅 ∈ CMnd)
65	7, 64	syl 17	. . . . 5 ⊢ (𝜑 → 𝑅 ∈ CMnd)
66		fzfid 13935	. . . . 5 ⊢ (𝜑 → (0...(𝑁 + 1)) ∈ Fin)
67	1, 3, 39, 41, 58	mulgnn0cld 19012	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) ∈ 𝑆)
68	35, 43	syl 17	. . . . . . 7 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → (𝑘 − 1) ∈ ℤ)
69	11, 68, 45	syl2an 595	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑁C(𝑘 − 1)) ∈ ℕ₀)
70	1, 3, 39, 69, 58	mulgnn0cld 19012	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) ∈ 𝑆)
71		eqid 2724	. . . . 5 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))) = (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))
72		eqid 2724	. . . . 5 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))) = (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))
73	1, 4, 65, 66, 67, 70, 71, 72	gsummptfidmadd 19835	. . . 4 ⊢ (𝜑 → (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) + ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))) = ((𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))) + (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))))
74	63, 73	eqtrd 2764	. . 3 ⊢ (𝜑 → (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁 + 1)C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))) = ((𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))) + (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))))
75	74	adantr 480	. 2 ⊢ ((𝜑 ∧ 𝜓) → (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁 + 1)C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))) = ((𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))) + (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)))))))
76	15, 34, 75	3eqtr4d 2774	1 ⊢ ((𝜑 ∧ 𝜓) → ((𝑁 + 1) ↑ (𝐴 + 𝐵)) = (𝑅 Σ_g (𝑘 ∈ (0...(𝑁 + 1)) ↦ (((𝑁 + 1)C𝑘) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))))))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1084 = wceq 1533 ∈ wcel 2098 ↦ cmpt 5221 ‘cfv 6533 (class class class)co 7401 0cc0 11106 1c1 11107 + caddc 11109 − cmin 11441 ℕ₀cn0 12469 ℤcz 12555 ...cfz 13481 Ccbc 14259 Basecbs 17143 +_gcplusg 17196 ._rcmulr 17197 Σ_g cgsu 17385 Mndcmnd 18657 ._gcmg 18985 CMndccmn 19690 mulGrpcmgp 20029 SRingcsrg 20081

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2163 ax-ext 2695 ax-rep 5275 ax-sep 5289 ax-nul 5296 ax-pow 5353 ax-pr 5417 ax-un 7718 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

This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2526 df-eu 2555 df-clab 2702 df-cleq 2716 df-clel 2802 df-nfc 2877 df-ne 2933 df-nel 3039 df-ral 3054 df-rex 3063 df-rmo 3368 df-reu 3369 df-rab 3425 df-v 3468 df-sbc 3770 df-csb 3886 df-dif 3943 df-un 3945 df-in 3947 df-ss 3957 df-pss 3959 df-nul 4315 df-if 4521 df-pw 4596 df-sn 4621 df-pr 4623 df-op 4627 df-uni 4900 df-int 4941 df-iun 4989 df-iin 4990 df-br 5139 df-opab 5201 df-mpt 5222 df-tr 5256 df-id 5564 df-eprel 5570 df-po 5578 df-so 5579 df-fr 5621 df-se 5622 df-we 5623 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6290 df-ord 6357 df-on 6358 df-lim 6359 df-suc 6360 df-iota 6485 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-isom 6542 df-riota 7357 df-ov 7404 df-oprab 7405 df-mpo 7406 df-of 7663 df-om 7849 df-1st 7968 df-2nd 7969 df-supp 8141 df-frecs 8261 df-wrecs 8292 df-recs 8366 df-rdg 8405 df-1o 8461 df-er 8699 df-map 8818 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-fsupp 9358 df-oi 9501 df-card 9930 df-pnf 11247 df-mnf 11248 df-xr 11249 df-ltxr 11250 df-le 11251 df-sub 11443 df-neg 11444 df-div 11869 df-nn 12210 df-2 12272 df-n0 12470 df-z 12556 df-uz 12820 df-rp 12972 df-fz 13482 df-fzo 13625 df-seq 13964 df-fac 14231 df-bc 14260 df-hash 14288 df-sets 17096 df-slot 17114 df-ndx 17126 df-base 17144 df-ress 17173 df-plusg 17209 df-0g 17386 df-gsum 17387 df-mre 17529 df-mrc 17530 df-acs 17532 df-mgm 18563 df-sgrp 18642 df-mnd 18658 df-mhm 18703 df-submnd 18704 df-mulg 18986 df-cntz 19223 df-cmn 19692 df-mgp 20030 df-ur 20077 df-srg 20082

This theorem is referenced by: srgbinom 20126

W3C validator