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Theorem fsumconst 11475

Description: The sum of constant terms (𝑘 is not free in 𝐵). (Contributed by NM, 24-Dec-2005.) (Revised by Mario Carneiro, 24-Apr-2014.)

**Assertion**
Ref	Expression
fsumconst	⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) → Σ𝑘 ∈ 𝐴 𝐵 = ((♯‘𝐴) · 𝐵))

Distinct variable groups: 𝐴,𝑘 𝐵,𝑘

Proof of Theorem fsumconst Dummy variables 𝑤 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		sumeq1 11376	. . 3 ⊢ (𝑤 = ∅ → Σ𝑘 ∈ 𝑤 𝐵 = Σ𝑘 ∈ ∅ 𝐵)
2		fveq2 5527	. . . 4 ⊢ (𝑤 = ∅ → (♯‘𝑤) = (♯‘∅))
3	2	oveq1d 5903	. . 3 ⊢ (𝑤 = ∅ → ((♯‘𝑤) · 𝐵) = ((♯‘∅) · 𝐵))
4	1, 3	eqeq12d 2202	. 2 ⊢ (𝑤 = ∅ → (Σ𝑘 ∈ 𝑤 𝐵 = ((♯‘𝑤) · 𝐵) ↔ Σ𝑘 ∈ ∅ 𝐵 = ((♯‘∅) · 𝐵)))
5		sumeq1 11376	. . 3 ⊢ (𝑤 = 𝑦 → Σ𝑘 ∈ 𝑤 𝐵 = Σ𝑘 ∈ 𝑦 𝐵)
6		fveq2 5527	. . . 4 ⊢ (𝑤 = 𝑦 → (♯‘𝑤) = (♯‘𝑦))
7	6	oveq1d 5903	. . 3 ⊢ (𝑤 = 𝑦 → ((♯‘𝑤) · 𝐵) = ((♯‘𝑦) · 𝐵))
8	5, 7	eqeq12d 2202	. 2 ⊢ (𝑤 = 𝑦 → (Σ𝑘 ∈ 𝑤 𝐵 = ((♯‘𝑤) · 𝐵) ↔ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)))
9		sumeq1 11376	. . 3 ⊢ (𝑤 = (𝑦 ∪ {𝑧}) → Σ𝑘 ∈ 𝑤 𝐵 = Σ𝑘 ∈ (𝑦 ∪ {𝑧})𝐵)
10		fveq2 5527	. . . 4 ⊢ (𝑤 = (𝑦 ∪ {𝑧}) → (♯‘𝑤) = (♯‘(𝑦 ∪ {𝑧})))
11	10	oveq1d 5903	. . 3 ⊢ (𝑤 = (𝑦 ∪ {𝑧}) → ((♯‘𝑤) · 𝐵) = ((♯‘(𝑦 ∪ {𝑧})) · 𝐵))
12	9, 11	eqeq12d 2202	. 2 ⊢ (𝑤 = (𝑦 ∪ {𝑧}) → (Σ𝑘 ∈ 𝑤 𝐵 = ((♯‘𝑤) · 𝐵) ↔ Σ𝑘 ∈ (𝑦 ∪ {𝑧})𝐵 = ((♯‘(𝑦 ∪ {𝑧})) · 𝐵)))
13		sumeq1 11376	. . 3 ⊢ (𝑤 = 𝐴 → Σ𝑘 ∈ 𝑤 𝐵 = Σ𝑘 ∈ 𝐴 𝐵)
14		fveq2 5527	. . . 4 ⊢ (𝑤 = 𝐴 → (♯‘𝑤) = (♯‘𝐴))
15	14	oveq1d 5903	. . 3 ⊢ (𝑤 = 𝐴 → ((♯‘𝑤) · 𝐵) = ((♯‘𝐴) · 𝐵))
16	13, 15	eqeq12d 2202	. 2 ⊢ (𝑤 = 𝐴 → (Σ𝑘 ∈ 𝑤 𝐵 = ((♯‘𝑤) · 𝐵) ↔ Σ𝑘 ∈ 𝐴 𝐵 = ((♯‘𝐴) · 𝐵)))
17		sum0 11409	. . 3 ⊢ Σ𝑘 ∈ ∅ 𝐵 = 0
18		hash0 10789	. . . . 5 ⊢ (♯‘∅) = 0
19	18	oveq1i 5898	. . . 4 ⊢ ((♯‘∅) · 𝐵) = (0 · 𝐵)
20		simpr 110	. . . . 5 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) → 𝐵 ∈ ℂ)
21	20	mul02d 8362	. . . 4 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) → (0 · 𝐵) = 0)
22	19, 21	eqtrid 2232	. . 3 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) → ((♯‘∅) · 𝐵) = 0)
23	17, 22	eqtr4id 2239	. 2 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) → Σ𝑘 ∈ ∅ 𝐵 = ((♯‘∅) · 𝐵))
24		simpr 110	. . . . . 6 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵))
25		vex 2752	. . . . . . . 8 ⊢ 𝑧 ∈ V
26		eqidd 2188	. . . . . . . . 9 ⊢ (𝑘 = 𝑧 → 𝐵 = 𝐵)
27	26	sumsn 11432	. . . . . . . 8 ⊢ ((𝑧 ∈ V ∧ 𝐵 ∈ ℂ) → Σ𝑘 ∈ {𝑧}𝐵 = 𝐵)
28	25, 27	mpan 424	. . . . . . 7 ⊢ (𝐵 ∈ ℂ → Σ𝑘 ∈ {𝑧}𝐵 = 𝐵)
29	28	ad4antlr 495	. . . . . 6 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → Σ𝑘 ∈ {𝑧}𝐵 = 𝐵)
30	24, 29	oveq12d 5906	. . . . 5 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → (Σ𝑘 ∈ 𝑦 𝐵 + Σ𝑘 ∈ {𝑧}𝐵) = (((♯‘𝑦) · 𝐵) + 𝐵))
31		simprr 531	. . . . . . . . 9 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → 𝑧 ∈ (𝐴 ∖ 𝑦))
32	31	eldifbd 3153	. . . . . . . 8 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → ¬ 𝑧 ∈ 𝑦)
33		disjsn 3666	. . . . . . . 8 ⊢ ((𝑦 ∩ {𝑧}) = ∅ ↔ ¬ 𝑧 ∈ 𝑦)
34	32, 33	sylibr 134	. . . . . . 7 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → (𝑦 ∩ {𝑧}) = ∅)
35		eqidd 2188	. . . . . . 7 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → (𝑦 ∪ {𝑧}) = (𝑦 ∪ {𝑧}))
36		simplr 528	. . . . . . . 8 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → 𝑦 ∈ Fin)
37		snfig 6827	. . . . . . . . . 10 ⊢ (𝑧 ∈ V → {𝑧} ∈ Fin)
38	37	elv 2753	. . . . . . . . 9 ⊢ {𝑧} ∈ Fin
39	38	a1i 9	. . . . . . . 8 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → {𝑧} ∈ Fin)
40		unfidisj 6934	. . . . . . . 8 ⊢ ((𝑦 ∈ Fin ∧ {𝑧} ∈ Fin ∧ (𝑦 ∩ {𝑧}) = ∅) → (𝑦 ∪ {𝑧}) ∈ Fin)
41	36, 39, 34, 40	syl3anc 1248	. . . . . . 7 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → (𝑦 ∪ {𝑧}) ∈ Fin)
42		simp-4r 542	. . . . . . 7 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ 𝑘 ∈ (𝑦 ∪ {𝑧})) → 𝐵 ∈ ℂ)
43	34, 35, 41, 42	fsumsplit 11428	. . . . . 6 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → Σ𝑘 ∈ (𝑦 ∪ {𝑧})𝐵 = (Σ𝑘 ∈ 𝑦 𝐵 + Σ𝑘 ∈ {𝑧}𝐵))
44	43	adantr 276	. . . . 5 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → Σ𝑘 ∈ (𝑦 ∪ {𝑧})𝐵 = (Σ𝑘 ∈ 𝑦 𝐵 + Σ𝑘 ∈ {𝑧}𝐵))
45		hashcl 10774	. . . . . . . 8 ⊢ (𝑦 ∈ Fin → (♯‘𝑦) ∈ ℕ₀)
46	45	ad3antlr 493	. . . . . . 7 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → (♯‘𝑦) ∈ ℕ₀)
47	46	nn0cnd 9244	. . . . . 6 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → (♯‘𝑦) ∈ ℂ)
48		simp-4r 542	. . . . . 6 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → 𝐵 ∈ ℂ)
49	47, 48	adddirp1d 7997	. . . . 5 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → (((♯‘𝑦) + 1) · 𝐵) = (((♯‘𝑦) · 𝐵) + 𝐵))
50	30, 44, 49	3eqtr4d 2230	. . . 4 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → Σ𝑘 ∈ (𝑦 ∪ {𝑧})𝐵 = (((♯‘𝑦) + 1) · 𝐵))
51	36	adantr 276	. . . . . . 7 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → 𝑦 ∈ Fin)
52	38	a1i 9	. . . . . . 7 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → {𝑧} ∈ Fin)
53	34	adantr 276	. . . . . . 7 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → (𝑦 ∩ {𝑧}) = ∅)
54		hashun 10798	. . . . . . 7 ⊢ ((𝑦 ∈ Fin ∧ {𝑧} ∈ Fin ∧ (𝑦 ∩ {𝑧}) = ∅) → (♯‘(𝑦 ∪ {𝑧})) = ((♯‘𝑦) + (♯‘{𝑧})))
55	51, 52, 53, 54	syl3anc 1248	. . . . . 6 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → (♯‘(𝑦 ∪ {𝑧})) = ((♯‘𝑦) + (♯‘{𝑧})))
56		hashsng 10791	. . . . . . . 8 ⊢ (𝑧 ∈ V → (♯‘{𝑧}) = 1)
57	56	elv 2753	. . . . . . 7 ⊢ (♯‘{𝑧}) = 1
58	57	oveq2i 5899	. . . . . 6 ⊢ ((♯‘𝑦) + (♯‘{𝑧})) = ((♯‘𝑦) + 1)
59	55, 58	eqtrdi 2236	. . . . 5 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → (♯‘(𝑦 ∪ {𝑧})) = ((♯‘𝑦) + 1))
60	59	oveq1d 5903	. . . 4 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → ((♯‘(𝑦 ∪ {𝑧})) · 𝐵) = (((♯‘𝑦) + 1) · 𝐵))
61	50, 60	eqtr4d 2223	. . 3 ⊢ (((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) ∧ Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵)) → Σ𝑘 ∈ (𝑦 ∪ {𝑧})𝐵 = ((♯‘(𝑦 ∪ {𝑧})) · 𝐵))
62	61	ex 115	. 2 ⊢ ((((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) ∧ 𝑦 ∈ Fin) ∧ (𝑦 ⊆ 𝐴 ∧ 𝑧 ∈ (𝐴 ∖ 𝑦))) → (Σ𝑘 ∈ 𝑦 𝐵 = ((♯‘𝑦) · 𝐵) → Σ𝑘 ∈ (𝑦 ∪ {𝑧})𝐵 = ((♯‘(𝑦 ∪ {𝑧})) · 𝐵)))
63		simpl 109	. 2 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) → 𝐴 ∈ Fin)
64	4, 8, 12, 16, 23, 62, 63	findcard2sd 6905	1 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ ℂ) → Σ𝑘 ∈ 𝐴 𝐵 = ((♯‘𝐴) · 𝐵))

Colors of variables: wff set class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 104 = wceq 1363 ∈ wcel 2158 Vcvv 2749 ∖ cdif 3138 ∪ cun 3139 ∩ cin 3140 ⊆ wss 3141 ∅c0 3434 {csn 3604 ‘cfv 5228 (class class class)co 5888 Fincfn 6753 ℂcc 7822 0cc0 7824 1c1 7825 + caddc 7827 · cmul 7829 ℕ₀cn0 9189 ♯chash 10768 Σcsu 11374

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1457 ax-7 1458 ax-gen 1459 ax-ie1 1503 ax-ie2 1504 ax-8 1514 ax-10 1515 ax-11 1516 ax-i12 1517 ax-bndl 1519 ax-4 1520 ax-17 1536 ax-i9 1540 ax-ial 1544 ax-i5r 1545 ax-13 2160 ax-14 2161 ax-ext 2169 ax-coll 4130 ax-sep 4133 ax-nul 4141 ax-pow 4186 ax-pr 4221 ax-un 4445 ax-setind 4548 ax-iinf 4599 ax-cnex 7915 ax-resscn 7916 ax-1cn 7917 ax-1re 7918 ax-icn 7919 ax-addcl 7920 ax-addrcl 7921 ax-mulcl 7922 ax-mulrcl 7923 ax-addcom 7924 ax-mulcom 7925 ax-addass 7926 ax-mulass 7927 ax-distr 7928 ax-i2m1 7929 ax-0lt1 7930 ax-1rid 7931 ax-0id 7932 ax-rnegex 7933 ax-precex 7934 ax-cnre 7935 ax-pre-ltirr 7936 ax-pre-ltwlin 7937 ax-pre-lttrn 7938 ax-pre-apti 7939 ax-pre-ltadd 7940 ax-pre-mulgt0 7941 ax-pre-mulext 7942 ax-arch 7943 ax-caucvg 7944

This theorem depends on definitions: df-bi 117 df-dc 836 df-3or 980 df-3an 981 df-tru 1366 df-fal 1369 df-nf 1471 df-sb 1773 df-eu 2039 df-mo 2040 df-clab 2174 df-cleq 2180 df-clel 2183 df-nfc 2318 df-ne 2358 df-nel 2453 df-ral 2470 df-rex 2471 df-reu 2472 df-rmo 2473 df-rab 2474 df-v 2751 df-sbc 2975 df-csb 3070 df-dif 3143 df-un 3145 df-in 3147 df-ss 3154 df-nul 3435 df-if 3547 df-pw 3589 df-sn 3610 df-pr 3611 df-op 3613 df-uni 3822 df-int 3857 df-iun 3900 df-br 4016 df-opab 4077 df-mpt 4078 df-tr 4114 df-id 4305 df-po 4308 df-iso 4309 df-iord 4378 df-on 4380 df-ilim 4381 df-suc 4383 df-iom 4602 df-xp 4644 df-rel 4645 df-cnv 4646 df-co 4647 df-dm 4648 df-rn 4649 df-res 4650 df-ima 4651 df-iota 5190 df-fun 5230 df-fn 5231 df-f 5232 df-f1 5233 df-fo 5234 df-f1o 5235 df-fv 5236 df-isom 5237 df-riota 5844 df-ov 5891 df-oprab 5892 df-mpo 5893 df-1st 6154 df-2nd 6155 df-recs 6319 df-irdg 6384 df-frec 6405 df-1o 6430 df-oadd 6434 df-er 6548 df-en 6754 df-dom 6755 df-fin 6756 df-pnf 8007 df-mnf 8008 df-xr 8009 df-ltxr 8010 df-le 8011 df-sub 8143 df-neg 8144 df-reap 8545 df-ap 8552 df-div 8643 df-inn 8933 df-2 8991 df-3 8992 df-4 8993 df-n0 9190 df-z 9267 df-uz 9542 df-q 9633 df-rp 9667 df-fz 10022 df-fzo 10156 df-seqfrec 10459 df-exp 10533 df-ihash 10769 df-cj 10864 df-re 10865 df-im 10866 df-rsqrt 11020 df-abs 11021 df-clim 11300 df-sumdc 11375

This theorem is referenced by: fsumdifsnconst 11476 hashiun 11499 hash2iun1dif1 11501 mertenslemi1 11556 sumhashdc 12358

W3C validator