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Theorem srgbinomlem 20046

Description: Lemma for srgbinom 20047. Inductive step, analogous to binomlem 15771. (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 20044	. . 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 20045	. . 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 7423	. 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 20007	. . . . . . 7 ⊢ (𝑅 ∈ SRing → 𝐺 ∈ Mnd)
17	7, 16	syl 17	. . . . . 6 ⊢ (𝜑 → 𝐺 ∈ Mnd)
18		srgmnd 20006	. . . . . . . 8 ⊢ (𝑅 ∈ SRing → 𝑅 ∈ Mnd)
19	7, 18	syl 17	. . . . . . 7 ⊢ (𝜑 → 𝑅 ∈ Mnd)
20	1, 4	mndcl 18629	. . . . . . 7 ⊢ ((𝑅 ∈ Mnd ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) → (𝐴 + 𝐵) ∈ 𝑆)
21	19, 8, 9, 20	syl3anc 1371	. . . . . 6 ⊢ (𝜑 → (𝐴 + 𝐵) ∈ 𝑆)
22	17, 11, 21	3jca 1128	. . . . 5 ⊢ (𝜑 → (𝐺 ∈ Mnd ∧ 𝑁 ∈ ℕ₀ ∧ (𝐴 + 𝐵) ∈ 𝑆))
23	22	adantr 481	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → (𝐺 ∈ Mnd ∧ 𝑁 ∈ ℕ₀ ∧ (𝐴 + 𝐵) ∈ 𝑆))
24	5, 1	mgpbas 19987	. . . . 5 ⊢ 𝑆 = (Base‘𝐺)
25	5, 2	mgpplusg 19985	. . . . 5 ⊢ × = (+_g‘𝐺)
26	24, 6, 25	mulgnn0p1 18959	. . . 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 18969	. . . . . . 7 ⊢ (𝜑 → (𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆)
29	28, 8, 9	3jca 1128	. . . . . 6 ⊢ (𝜑 → ((𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆 ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆))
30	7, 29	jca 512	. . . . 5 ⊢ (𝜑 → (𝑅 ∈ SRing ∧ ((𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆 ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)))
31	30	adantr 481	. . . 4 ⊢ ((𝜑 ∧ 𝜓) → (𝑅 ∈ SRing ∧ ((𝑁 ↑ (𝐴 + 𝐵)) ∈ 𝑆 ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)))
32	1, 4, 2	srgdi 20013	. . . 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 2772	. 2 ⊢ ((𝜑 ∧ 𝜓) → ((𝑁 + 1) ↑ (𝐴 + 𝐵)) = (((𝑁 ↑ (𝐴 + 𝐵)) × 𝐴) + ((𝑁 ↑ (𝐴 + 𝐵)) × 𝐵)))
35		elfzelz 13497	. . . . . . . . 9 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → 𝑘 ∈ ℤ)
36		bcpasc 14277	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ₀ ∧ 𝑘 ∈ ℤ) → ((𝑁C𝑘) + (𝑁C(𝑘 − 1))) = ((𝑁 + 1)C𝑘))
37	11, 35, 36	syl2an 596	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((𝑁C𝑘) + (𝑁C(𝑘 − 1))) = ((𝑁 + 1)C𝑘))
38	37	oveq1d 7420	. . . . . . 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 481	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑅 ∈ Mnd)
40		bccl 14278	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ₀ ∧ 𝑘 ∈ ℤ) → (𝑁C𝑘) ∈ ℕ₀)
41	11, 35, 40	syl2an 596	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑁C𝑘) ∈ ℕ₀)
42	35	adantl 482	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑘 ∈ ℤ)
43		peano2zm 12601	. . . . . . . . . 10 ⊢ (𝑘 ∈ ℤ → (𝑘 − 1) ∈ ℤ)
44	42, 43	syl 17	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑘 − 1) ∈ ℤ)
45		bccl 14278	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ₀ ∧ (𝑘 − 1) ∈ ℤ) → (𝑁C(𝑘 − 1)) ∈ ℕ₀)
46	11, 44, 45	syl2an2r 683	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑁C(𝑘 − 1)) ∈ ℕ₀)
47	7	adantr 481	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑅 ∈ SRing)
48	17	adantr 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝐺 ∈ Mnd)
49		fznn0sub 13529	. . . . . . . . . . 11 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → ((𝑁 + 1) − 𝑘) ∈ ℕ₀)
50	49	adantl 482	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((𝑁 + 1) − 𝑘) ∈ ℕ₀)
51	8	adantr 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝐴 ∈ 𝑆)
52	24, 6, 48, 50, 51	mulgnn0cld 18969	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (((𝑁 + 1) − 𝑘) ↑ 𝐴) ∈ 𝑆)
53		elfznn0 13590	. . . . . . . . . . 11 ⊢ (𝑘 ∈ (0...(𝑁 + 1)) → 𝑘 ∈ ℕ₀)
54	53	adantl 482	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑘 ∈ ℕ₀)
55	9	adantr 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝐵 ∈ 𝑆)
56	24, 6, 48, 54, 55	mulgnn0cld 18969	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑘 ↑ 𝐵) ∈ 𝑆)
57	1, 2	srgcl 20009	. . . . . . . . 9 ⊢ ((𝑅 ∈ SRing ∧ (((𝑁 + 1) − 𝑘) ↑ 𝐴) ∈ 𝑆 ∧ (𝑘 ↑ 𝐵) ∈ 𝑆) → ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)) ∈ 𝑆)
58	47, 52, 56, 57	syl3anc 1371	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵)) ∈ 𝑆)
59	1, 3, 4	mulgnn0dir 18978	. . . . . . . 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 1372	. . . . . . 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 2774	. . . . . 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 5247	. . . . 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 7421	. . . 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 20005	. . . . . 6 ⊢ (𝑅 ∈ SRing → 𝑅 ∈ CMnd)
65	7, 64	syl 17	. . . . 5 ⊢ (𝜑 → 𝑅 ∈ CMnd)
66		fzfid 13934	. . . . 5 ⊢ (𝜑 → (0...(𝑁 + 1)) ∈ Fin)
67	1, 3, 39, 41, 58	mulgnn0cld 18969	. . . . 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 596	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → (𝑁C(𝑘 − 1)) ∈ ℕ₀)
70	1, 3, 39, 69, 58	mulgnn0cld 18969	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → ((𝑁C(𝑘 − 1)) · ((((𝑁 + 1) − 𝑘) ↑ 𝐴) × (𝑘 ↑ 𝐵))) ∈ 𝑆)
71		eqid 2732	. . . . 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 2732	. . . . 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 19787	. . . 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 2772	. . 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 481	. 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 2782	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 396 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 ↦ cmpt 5230 ‘cfv 6540 (class class class)co 7405 0cc0 11106 1c1 11107 + caddc 11109 − cmin 11440 ℕ₀cn0 12468 ℤcz 12554 ...cfz 13480 Ccbc 14258 Basecbs 17140 +_gcplusg 17193 ._rcmulr 17194 Σ_g cgsu 17382 Mndcmnd 18621 ._gcmg 18944 CMndccmn 19642 mulGrpcmgp 19981 SRingcsrg 20002

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

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-op 4634 df-uni 4908 df-int 4950 df-iun 4998 df-iin 4999 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 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-isom 6549 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-of 7666 df-om 7852 df-1st 7971 df-2nd 7972 df-supp 8143 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-1o 8462 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 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-n0 12469 df-z 12555 df-uz 12819 df-rp 12971 df-fz 13481 df-fzo 13624 df-seq 13963 df-fac 14230 df-bc 14259 df-hash 14287 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17141 df-ress 17170 df-plusg 17206 df-0g 17383 df-gsum 17384 df-mre 17526 df-mrc 17527 df-acs 17529 df-mgm 18557 df-sgrp 18606 df-mnd 18622 df-mhm 18667 df-submnd 18668 df-mulg 18945 df-cntz 19175 df-cmn 19644 df-mgp 19982 df-ur 19999 df-srg 20003

This theorem is referenced by: srgbinom 20047

W3C validator