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Theorem fprodefsum 14753
Description: Move the exponential function from inside a finite product to outside a finite sum. (Contributed by Scott Fenton, 26-Dec-2017.)
Hypotheses
Ref Expression
fprodefsum.1 𝑍 = (ℤ𝑀)
fprodefsum.2 (𝜑𝑁𝑍)
fprodefsum.3 ((𝜑𝑘𝑍) → 𝐴 ∈ ℂ)
Assertion
Ref Expression
fprodefsum (𝜑 → ∏𝑘 ∈ (𝑀...𝑁)(exp‘𝐴) = (exp‘Σ𝑘 ∈ (𝑀...𝑁)𝐴))
Distinct variable groups:   𝜑,𝑘   𝑘,𝑀   𝑘,𝑁   𝑘,𝑍
Allowed substitution hint:   𝐴(𝑘)

Proof of Theorem fprodefsum
Dummy variables 𝑎 𝑚 𝑛 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fprodefsum.2 . . . 4 (𝜑𝑁𝑍)
2 fprodefsum.1 . . . 4 𝑍 = (ℤ𝑀)
31, 2syl6eleq 2708 . . 3 (𝜑𝑁 ∈ (ℤ𝑀))
4 oveq2 6615 . . . . . . 7 (𝑎 = 𝑀 → (𝑀...𝑎) = (𝑀...𝑀))
54prodeq1d 14579 . . . . . 6 (𝑎 = 𝑀 → ∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ∏𝑚 ∈ (𝑀...𝑀)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚))
64sumeq1d 14368 . . . . . . 7 (𝑎 = 𝑀 → Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚) = Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚))
76fveq2d 6154 . . . . . 6 (𝑎 = 𝑀 → (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚)) = (exp‘Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚)))
85, 7eqeq12d 2636 . . . . 5 (𝑎 = 𝑀 → (∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚)) ↔ ∏𝑚 ∈ (𝑀...𝑀)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚))))
98imbi2d 330 . . . 4 (𝑎 = 𝑀 → ((𝜑 → ∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚))) ↔ (𝜑 → ∏𝑚 ∈ (𝑀...𝑀)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚)))))
10 oveq2 6615 . . . . . . 7 (𝑎 = 𝑛 → (𝑀...𝑎) = (𝑀...𝑛))
1110prodeq1d 14579 . . . . . 6 (𝑎 = 𝑛 → ∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚))
1210sumeq1d 14368 . . . . . . 7 (𝑎 = 𝑛 → Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚) = Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))
1312fveq2d 6154 . . . . . 6 (𝑎 = 𝑛 → (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚)) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)))
1411, 13eqeq12d 2636 . . . . 5 (𝑎 = 𝑛 → (∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚)) ↔ ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))))
1514imbi2d 330 . . . 4 (𝑎 = 𝑛 → ((𝜑 → ∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚))) ↔ (𝜑 → ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)))))
16 oveq2 6615 . . . . . . 7 (𝑎 = (𝑛 + 1) → (𝑀...𝑎) = (𝑀...(𝑛 + 1)))
1716prodeq1d 14579 . . . . . 6 (𝑎 = (𝑛 + 1) → ∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚))
1816sumeq1d 14368 . . . . . . 7 (𝑎 = (𝑛 + 1) → Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚) = Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚))
1918fveq2d 6154 . . . . . 6 (𝑎 = (𝑛 + 1) → (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚)) = (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)))
2017, 19eqeq12d 2636 . . . . 5 (𝑎 = (𝑛 + 1) → (∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚)) ↔ ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚))))
2120imbi2d 330 . . . 4 (𝑎 = (𝑛 + 1) → ((𝜑 → ∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚))) ↔ (𝜑 → ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)))))
22 oveq2 6615 . . . . . . 7 (𝑎 = 𝑁 → (𝑀...𝑎) = (𝑀...𝑁))
2322prodeq1d 14579 . . . . . 6 (𝑎 = 𝑁 → ∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ∏𝑚 ∈ (𝑀...𝑁)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚))
2422sumeq1d 14368 . . . . . . 7 (𝑎 = 𝑁 → Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚) = Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚))
2524fveq2d 6154 . . . . . 6 (𝑎 = 𝑁 → (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚)) = (exp‘Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚)))
2623, 25eqeq12d 2636 . . . . 5 (𝑎 = 𝑁 → (∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚)) ↔ ∏𝑚 ∈ (𝑀...𝑁)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚))))
2726imbi2d 330 . . . 4 (𝑎 = 𝑁 → ((𝜑 → ∏𝑚 ∈ (𝑀...𝑎)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑎)((𝑘𝑍𝐴)‘𝑚))) ↔ (𝜑 → ∏𝑚 ∈ (𝑀...𝑁)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚)))))
28 fzsn 12328 . . . . . . . . 9 (𝑀 ∈ ℤ → (𝑀...𝑀) = {𝑀})
2928adantl 482 . . . . . . . 8 ((𝜑𝑀 ∈ ℤ) → (𝑀...𝑀) = {𝑀})
3029prodeq1d 14579 . . . . . . 7 ((𝜑𝑀 ∈ ℤ) → ∏𝑚 ∈ (𝑀...𝑀)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ∏𝑚 ∈ {𝑀} ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚))
31 simpr 477 . . . . . . . 8 ((𝜑𝑀 ∈ ℤ) → 𝑀 ∈ ℤ)
32 uzid 11649 . . . . . . . . . 10 (𝑀 ∈ ℤ → 𝑀 ∈ (ℤ𝑀))
3332, 2syl6eleqr 2709 . . . . . . . . 9 (𝑀 ∈ ℤ → 𝑀𝑍)
34 fprodefsum.3 . . . . . . . . . . . 12 ((𝜑𝑘𝑍) → 𝐴 ∈ ℂ)
35 efcl 14741 . . . . . . . . . . . 12 (𝐴 ∈ ℂ → (exp‘𝐴) ∈ ℂ)
3634, 35syl 17 . . . . . . . . . . 11 ((𝜑𝑘𝑍) → (exp‘𝐴) ∈ ℂ)
37 eqid 2621 . . . . . . . . . . 11 (𝑘𝑍 ↦ (exp‘𝐴)) = (𝑘𝑍 ↦ (exp‘𝐴))
3836, 37fmptd 6343 . . . . . . . . . 10 (𝜑 → (𝑘𝑍 ↦ (exp‘𝐴)):𝑍⟶ℂ)
3938ffvelrnda 6317 . . . . . . . . 9 ((𝜑𝑀𝑍) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑀) ∈ ℂ)
4033, 39sylan2 491 . . . . . . . 8 ((𝜑𝑀 ∈ ℤ) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑀) ∈ ℂ)
41 fveq2 6150 . . . . . . . . 9 (𝑚 = 𝑀 → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑀))
4241prodsn 14620 . . . . . . . 8 ((𝑀 ∈ ℤ ∧ ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑀) ∈ ℂ) → ∏𝑚 ∈ {𝑀} ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑀))
4331, 40, 42syl2anc 692 . . . . . . 7 ((𝜑𝑀 ∈ ℤ) → ∏𝑚 ∈ {𝑀} ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑀))
4433adantl 482 . . . . . . . 8 ((𝜑𝑀 ∈ ℤ) → 𝑀𝑍)
45 fvex 6160 . . . . . . . 8 (exp‘𝑀 / 𝑘𝐴) ∈ V
46 nfcv 2761 . . . . . . . . 9 𝑘𝑀
47 nfcv 2761 . . . . . . . . . 10 𝑘exp
48 nfcsb1v 3531 . . . . . . . . . 10 𝑘𝑀 / 𝑘𝐴
4947, 48nffv 6157 . . . . . . . . 9 𝑘(exp‘𝑀 / 𝑘𝐴)
50 csbeq1a 3524 . . . . . . . . . 10 (𝑘 = 𝑀𝐴 = 𝑀 / 𝑘𝐴)
5150fveq2d 6154 . . . . . . . . 9 (𝑘 = 𝑀 → (exp‘𝐴) = (exp‘𝑀 / 𝑘𝐴))
5246, 49, 51, 37fvmptf 6259 . . . . . . . 8 ((𝑀𝑍 ∧ (exp‘𝑀 / 𝑘𝐴) ∈ V) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑀) = (exp‘𝑀 / 𝑘𝐴))
5344, 45, 52sylancl 693 . . . . . . 7 ((𝜑𝑀 ∈ ℤ) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑀) = (exp‘𝑀 / 𝑘𝐴))
5430, 43, 533eqtrd 2659 . . . . . 6 ((𝜑𝑀 ∈ ℤ) → ∏𝑚 ∈ (𝑀...𝑀)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘𝑀 / 𝑘𝐴))
5529sumeq1d 14368 . . . . . . . 8 ((𝜑𝑀 ∈ ℤ) → Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚) = Σ𝑚 ∈ {𝑀} ((𝑘𝑍𝐴)‘𝑚))
56 eqid 2621 . . . . . . . . . . . 12 (𝑘𝑍𝐴) = (𝑘𝑍𝐴)
5734, 56fmptd 6343 . . . . . . . . . . 11 (𝜑 → (𝑘𝑍𝐴):𝑍⟶ℂ)
5857ffvelrnda 6317 . . . . . . . . . 10 ((𝜑𝑀𝑍) → ((𝑘𝑍𝐴)‘𝑀) ∈ ℂ)
5933, 58sylan2 491 . . . . . . . . 9 ((𝜑𝑀 ∈ ℤ) → ((𝑘𝑍𝐴)‘𝑀) ∈ ℂ)
60 fveq2 6150 . . . . . . . . . 10 (𝑚 = 𝑀 → ((𝑘𝑍𝐴)‘𝑚) = ((𝑘𝑍𝐴)‘𝑀))
6160sumsn 14408 . . . . . . . . 9 ((𝑀 ∈ ℤ ∧ ((𝑘𝑍𝐴)‘𝑀) ∈ ℂ) → Σ𝑚 ∈ {𝑀} ((𝑘𝑍𝐴)‘𝑚) = ((𝑘𝑍𝐴)‘𝑀))
6231, 59, 61syl2anc 692 . . . . . . . 8 ((𝜑𝑀 ∈ ℤ) → Σ𝑚 ∈ {𝑀} ((𝑘𝑍𝐴)‘𝑚) = ((𝑘𝑍𝐴)‘𝑀))
6334ralrimiva 2960 . . . . . . . . . 10 (𝜑 → ∀𝑘𝑍 𝐴 ∈ ℂ)
6448nfel1 2775 . . . . . . . . . . . 12 𝑘𝑀 / 𝑘𝐴 ∈ ℂ
6550eleq1d 2683 . . . . . . . . . . . 12 (𝑘 = 𝑀 → (𝐴 ∈ ℂ ↔ 𝑀 / 𝑘𝐴 ∈ ℂ))
6664, 65rspc 3289 . . . . . . . . . . 11 (𝑀𝑍 → (∀𝑘𝑍 𝐴 ∈ ℂ → 𝑀 / 𝑘𝐴 ∈ ℂ))
6766impcom 446 . . . . . . . . . 10 ((∀𝑘𝑍 𝐴 ∈ ℂ ∧ 𝑀𝑍) → 𝑀 / 𝑘𝐴 ∈ ℂ)
6863, 33, 67syl2an 494 . . . . . . . . 9 ((𝜑𝑀 ∈ ℤ) → 𝑀 / 𝑘𝐴 ∈ ℂ)
6956fvmpts 6244 . . . . . . . . 9 ((𝑀𝑍𝑀 / 𝑘𝐴 ∈ ℂ) → ((𝑘𝑍𝐴)‘𝑀) = 𝑀 / 𝑘𝐴)
7044, 68, 69syl2anc 692 . . . . . . . 8 ((𝜑𝑀 ∈ ℤ) → ((𝑘𝑍𝐴)‘𝑀) = 𝑀 / 𝑘𝐴)
7155, 62, 703eqtrd 2659 . . . . . . 7 ((𝜑𝑀 ∈ ℤ) → Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚) = 𝑀 / 𝑘𝐴)
7271fveq2d 6154 . . . . . 6 ((𝜑𝑀 ∈ ℤ) → (exp‘Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚)) = (exp‘𝑀 / 𝑘𝐴))
7354, 72eqtr4d 2658 . . . . 5 ((𝜑𝑀 ∈ ℤ) → ∏𝑚 ∈ (𝑀...𝑀)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚)))
7473expcom 451 . . . 4 (𝑀 ∈ ℤ → (𝜑 → ∏𝑚 ∈ (𝑀...𝑀)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑀)((𝑘𝑍𝐴)‘𝑚))))
75 simp3 1061 . . . . . . . . . 10 ((𝜑𝑛𝑍 ∧ ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))) → ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)))
762peano2uzs 11689 . . . . . . . . . . . 12 (𝑛𝑍 → (𝑛 + 1) ∈ 𝑍)
77 simpr 477 . . . . . . . . . . . . . 14 ((𝜑 ∧ (𝑛 + 1) ∈ 𝑍) → (𝑛 + 1) ∈ 𝑍)
78 nfcsb1v 3531 . . . . . . . . . . . . . . . . . 18 𝑘(𝑛 + 1) / 𝑘𝐴
7978nfel1 2775 . . . . . . . . . . . . . . . . 17 𝑘(𝑛 + 1) / 𝑘𝐴 ∈ ℂ
80 csbeq1a 3524 . . . . . . . . . . . . . . . . . 18 (𝑘 = (𝑛 + 1) → 𝐴 = (𝑛 + 1) / 𝑘𝐴)
8180eleq1d 2683 . . . . . . . . . . . . . . . . 17 (𝑘 = (𝑛 + 1) → (𝐴 ∈ ℂ ↔ (𝑛 + 1) / 𝑘𝐴 ∈ ℂ))
8279, 81rspc 3289 . . . . . . . . . . . . . . . 16 ((𝑛 + 1) ∈ 𝑍 → (∀𝑘𝑍 𝐴 ∈ ℂ → (𝑛 + 1) / 𝑘𝐴 ∈ ℂ))
8363, 82mpan9 486 . . . . . . . . . . . . . . 15 ((𝜑 ∧ (𝑛 + 1) ∈ 𝑍) → (𝑛 + 1) / 𝑘𝐴 ∈ ℂ)
84 efcl 14741 . . . . . . . . . . . . . . 15 ((𝑛 + 1) / 𝑘𝐴 ∈ ℂ → (exp‘(𝑛 + 1) / 𝑘𝐴) ∈ ℂ)
8583, 84syl 17 . . . . . . . . . . . . . 14 ((𝜑 ∧ (𝑛 + 1) ∈ 𝑍) → (exp‘(𝑛 + 1) / 𝑘𝐴) ∈ ℂ)
86 nfcv 2761 . . . . . . . . . . . . . . 15 𝑘(𝑛 + 1)
8747, 78nffv 6157 . . . . . . . . . . . . . . 15 𝑘(exp‘(𝑛 + 1) / 𝑘𝐴)
8880fveq2d 6154 . . . . . . . . . . . . . . 15 (𝑘 = (𝑛 + 1) → (exp‘𝐴) = (exp‘(𝑛 + 1) / 𝑘𝐴))
8986, 87, 88, 37fvmptf 6259 . . . . . . . . . . . . . 14 (((𝑛 + 1) ∈ 𝑍 ∧ (exp‘(𝑛 + 1) / 𝑘𝐴) ∈ ℂ) → ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1)) = (exp‘(𝑛 + 1) / 𝑘𝐴))
9077, 85, 89syl2anc 692 . . . . . . . . . . . . 13 ((𝜑 ∧ (𝑛 + 1) ∈ 𝑍) → ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1)) = (exp‘(𝑛 + 1) / 𝑘𝐴))
9156fvmpts 6244 . . . . . . . . . . . . . . 15 (((𝑛 + 1) ∈ 𝑍(𝑛 + 1) / 𝑘𝐴 ∈ ℂ) → ((𝑘𝑍𝐴)‘(𝑛 + 1)) = (𝑛 + 1) / 𝑘𝐴)
9277, 83, 91syl2anc 692 . . . . . . . . . . . . . 14 ((𝜑 ∧ (𝑛 + 1) ∈ 𝑍) → ((𝑘𝑍𝐴)‘(𝑛 + 1)) = (𝑛 + 1) / 𝑘𝐴)
9392fveq2d 6154 . . . . . . . . . . . . 13 ((𝜑 ∧ (𝑛 + 1) ∈ 𝑍) → (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1))) = (exp‘(𝑛 + 1) / 𝑘𝐴))
9490, 93eqtr4d 2658 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑛 + 1) ∈ 𝑍) → ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1)) = (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1))))
9576, 94sylan2 491 . . . . . . . . . . 11 ((𝜑𝑛𝑍) → ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1)) = (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1))))
96953adant3 1079 . . . . . . . . . 10 ((𝜑𝑛𝑍 ∧ ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))) → ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1)) = (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1))))
9775, 96oveq12d 6625 . . . . . . . . 9 ((𝜑𝑛𝑍 ∧ ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))) → (∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) · ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1))) = ((exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)) · (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1)))))
98 simpr 477 . . . . . . . . . . . 12 ((𝜑𝑛𝑍) → 𝑛𝑍)
9998, 2syl6eleq 2708 . . . . . . . . . . 11 ((𝜑𝑛𝑍) → 𝑛 ∈ (ℤ𝑀))
100 elfzuz 12283 . . . . . . . . . . . . . 14 (𝑚 ∈ (𝑀...(𝑛 + 1)) → 𝑚 ∈ (ℤ𝑀))
101100, 2syl6eleqr 2709 . . . . . . . . . . . . 13 (𝑚 ∈ (𝑀...(𝑛 + 1)) → 𝑚𝑍)
10238ffvelrnda 6317 . . . . . . . . . . . . 13 ((𝜑𝑚𝑍) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) ∈ ℂ)
103101, 102sylan2 491 . . . . . . . . . . . 12 ((𝜑𝑚 ∈ (𝑀...(𝑛 + 1))) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) ∈ ℂ)
104103adantlr 750 . . . . . . . . . . 11 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (𝑀...(𝑛 + 1))) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) ∈ ℂ)
105 fveq2 6150 . . . . . . . . . . 11 (𝑚 = (𝑛 + 1) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1)))
10699, 104, 105fprodp1 14627 . . . . . . . . . 10 ((𝜑𝑛𝑍) → ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) · ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1))))
1071063adant3 1079 . . . . . . . . 9 ((𝜑𝑛𝑍 ∧ ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))) → ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) · ((𝑘𝑍 ↦ (exp‘𝐴))‘(𝑛 + 1))))
10857ffvelrnda 6317 . . . . . . . . . . . . . . 15 ((𝜑𝑚𝑍) → ((𝑘𝑍𝐴)‘𝑚) ∈ ℂ)
109101, 108sylan2 491 . . . . . . . . . . . . . 14 ((𝜑𝑚 ∈ (𝑀...(𝑛 + 1))) → ((𝑘𝑍𝐴)‘𝑚) ∈ ℂ)
110109adantlr 750 . . . . . . . . . . . . 13 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (𝑀...(𝑛 + 1))) → ((𝑘𝑍𝐴)‘𝑚) ∈ ℂ)
111 fveq2 6150 . . . . . . . . . . . . 13 (𝑚 = (𝑛 + 1) → ((𝑘𝑍𝐴)‘𝑚) = ((𝑘𝑍𝐴)‘(𝑛 + 1)))
11299, 110, 111fsump1 14418 . . . . . . . . . . . 12 ((𝜑𝑛𝑍) → Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚) = (Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚) + ((𝑘𝑍𝐴)‘(𝑛 + 1))))
113112fveq2d 6154 . . . . . . . . . . 11 ((𝜑𝑛𝑍) → (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)) = (exp‘(Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚) + ((𝑘𝑍𝐴)‘(𝑛 + 1)))))
114 fzfid 12715 . . . . . . . . . . . . 13 ((𝜑𝑛𝑍) → (𝑀...𝑛) ∈ Fin)
115 elfzuz 12283 . . . . . . . . . . . . . . . 16 (𝑚 ∈ (𝑀...𝑛) → 𝑚 ∈ (ℤ𝑀))
116115, 2syl6eleqr 2709 . . . . . . . . . . . . . . 15 (𝑚 ∈ (𝑀...𝑛) → 𝑚𝑍)
117116, 108sylan2 491 . . . . . . . . . . . . . 14 ((𝜑𝑚 ∈ (𝑀...𝑛)) → ((𝑘𝑍𝐴)‘𝑚) ∈ ℂ)
118117adantlr 750 . . . . . . . . . . . . 13 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (𝑀...𝑛)) → ((𝑘𝑍𝐴)‘𝑚) ∈ ℂ)
119114, 118fsumcl 14400 . . . . . . . . . . . 12 ((𝜑𝑛𝑍) → Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚) ∈ ℂ)
12057ffvelrnda 6317 . . . . . . . . . . . . 13 ((𝜑 ∧ (𝑛 + 1) ∈ 𝑍) → ((𝑘𝑍𝐴)‘(𝑛 + 1)) ∈ ℂ)
12176, 120sylan2 491 . . . . . . . . . . . 12 ((𝜑𝑛𝑍) → ((𝑘𝑍𝐴)‘(𝑛 + 1)) ∈ ℂ)
122 efadd 14752 . . . . . . . . . . . 12 ((Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚) ∈ ℂ ∧ ((𝑘𝑍𝐴)‘(𝑛 + 1)) ∈ ℂ) → (exp‘(Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚) + ((𝑘𝑍𝐴)‘(𝑛 + 1)))) = ((exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)) · (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1)))))
123119, 121, 122syl2anc 692 . . . . . . . . . . 11 ((𝜑𝑛𝑍) → (exp‘(Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚) + ((𝑘𝑍𝐴)‘(𝑛 + 1)))) = ((exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)) · (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1)))))
124113, 123eqtrd 2655 . . . . . . . . . 10 ((𝜑𝑛𝑍) → (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)) = ((exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)) · (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1)))))
1251243adant3 1079 . . . . . . . . 9 ((𝜑𝑛𝑍 ∧ ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))) → (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)) = ((exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)) · (exp‘((𝑘𝑍𝐴)‘(𝑛 + 1)))))
12697, 107, 1253eqtr4d 2665 . . . . . . . 8 ((𝜑𝑛𝑍 ∧ ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))) → ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)))
1271263exp 1261 . . . . . . 7 (𝜑 → (𝑛𝑍 → (∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)) → ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)))))
128127com12 32 . . . . . 6 (𝑛𝑍 → (𝜑 → (∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚)) → ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)))))
129128a2d 29 . . . . 5 (𝑛𝑍 → ((𝜑 → ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))) → (𝜑 → ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)))))
1302eqcomi 2630 . . . . 5 (ℤ𝑀) = 𝑍
131129, 130eleq2s 2716 . . . 4 (𝑛 ∈ (ℤ𝑀) → ((𝜑 → ∏𝑚 ∈ (𝑀...𝑛)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑛)((𝑘𝑍𝐴)‘𝑚))) → (𝜑 → ∏𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...(𝑛 + 1))((𝑘𝑍𝐴)‘𝑚)))))
1329, 15, 21, 27, 74, 131uzind4 11693 . . 3 (𝑁 ∈ (ℤ𝑀) → (𝜑 → ∏𝑚 ∈ (𝑀...𝑁)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚))))
1333, 132mpcom 38 . 2 (𝜑 → ∏𝑚 ∈ (𝑀...𝑁)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = (exp‘Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚)))
134 fzssuz 12327 . . . . . . . 8 (𝑀...𝑁) ⊆ (ℤ𝑀)
135134, 2sseqtr4i 3619 . . . . . . 7 (𝑀...𝑁) ⊆ 𝑍
136 resmpt 5410 . . . . . . 7 ((𝑀...𝑁) ⊆ 𝑍 → ((𝑘𝑍 ↦ (exp‘𝐴)) ↾ (𝑀...𝑁)) = (𝑘 ∈ (𝑀...𝑁) ↦ (exp‘𝐴)))
137135, 136ax-mp 5 . . . . . 6 ((𝑘𝑍 ↦ (exp‘𝐴)) ↾ (𝑀...𝑁)) = (𝑘 ∈ (𝑀...𝑁) ↦ (exp‘𝐴))
138137fveq1i 6151 . . . . 5 (((𝑘𝑍 ↦ (exp‘𝐴)) ↾ (𝑀...𝑁))‘𝑚) = ((𝑘 ∈ (𝑀...𝑁) ↦ (exp‘𝐴))‘𝑚)
139 fvres 6166 . . . . 5 (𝑚 ∈ (𝑀...𝑁) → (((𝑘𝑍 ↦ (exp‘𝐴)) ↾ (𝑀...𝑁))‘𝑚) = ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚))
140138, 139syl5reqr 2670 . . . 4 (𝑚 ∈ (𝑀...𝑁) → ((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ((𝑘 ∈ (𝑀...𝑁) ↦ (exp‘𝐴))‘𝑚))
141140prodeq2i 14577 . . 3 𝑚 ∈ (𝑀...𝑁)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ∏𝑚 ∈ (𝑀...𝑁)((𝑘 ∈ (𝑀...𝑁) ↦ (exp‘𝐴))‘𝑚)
142 prodfc 14603 . . 3 𝑚 ∈ (𝑀...𝑁)((𝑘 ∈ (𝑀...𝑁) ↦ (exp‘𝐴))‘𝑚) = ∏𝑘 ∈ (𝑀...𝑁)(exp‘𝐴)
143141, 142eqtri 2643 . 2 𝑚 ∈ (𝑀...𝑁)((𝑘𝑍 ↦ (exp‘𝐴))‘𝑚) = ∏𝑘 ∈ (𝑀...𝑁)(exp‘𝐴)
144 resmpt 5410 . . . . . . . 8 ((𝑀...𝑁) ⊆ 𝑍 → ((𝑘𝑍𝐴) ↾ (𝑀...𝑁)) = (𝑘 ∈ (𝑀...𝑁) ↦ 𝐴))
145135, 144ax-mp 5 . . . . . . 7 ((𝑘𝑍𝐴) ↾ (𝑀...𝑁)) = (𝑘 ∈ (𝑀...𝑁) ↦ 𝐴)
146145fveq1i 6151 . . . . . 6 (((𝑘𝑍𝐴) ↾ (𝑀...𝑁))‘𝑚) = ((𝑘 ∈ (𝑀...𝑁) ↦ 𝐴)‘𝑚)
147 fvres 6166 . . . . . 6 (𝑚 ∈ (𝑀...𝑁) → (((𝑘𝑍𝐴) ↾ (𝑀...𝑁))‘𝑚) = ((𝑘𝑍𝐴)‘𝑚))
148146, 147syl5reqr 2670 . . . . 5 (𝑚 ∈ (𝑀...𝑁) → ((𝑘𝑍𝐴)‘𝑚) = ((𝑘 ∈ (𝑀...𝑁) ↦ 𝐴)‘𝑚))
149148sumeq2i 14366 . . . 4 Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚) = Σ𝑚 ∈ (𝑀...𝑁)((𝑘 ∈ (𝑀...𝑁) ↦ 𝐴)‘𝑚)
150 sumfc 14376 . . . 4 Σ𝑚 ∈ (𝑀...𝑁)((𝑘 ∈ (𝑀...𝑁) ↦ 𝐴)‘𝑚) = Σ𝑘 ∈ (𝑀...𝑁)𝐴
151149, 150eqtri 2643 . . 3 Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚) = Σ𝑘 ∈ (𝑀...𝑁)𝐴
152151fveq2i 6153 . 2 (exp‘Σ𝑚 ∈ (𝑀...𝑁)((𝑘𝑍𝐴)‘𝑚)) = (exp‘Σ𝑘 ∈ (𝑀...𝑁)𝐴)
153133, 143, 1523eqtr3g 2678 1 (𝜑 → ∏𝑘 ∈ (𝑀...𝑁)(exp‘𝐴) = (exp‘Σ𝑘 ∈ (𝑀...𝑁)𝐴))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 384  w3a 1036   = wceq 1480  wcel 1987  wral 2907  Vcvv 3186  csb 3515  wss 3556  {csn 4150  cmpt 4675  cres 5078  cfv 5849  (class class class)co 6607  cc 9881  1c1 9884   + caddc 9886   · cmul 9888  cz 11324  cuz 11634  ...cfz 12271  Σcsu 14353  cprod 14563  expce 14720
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4733  ax-sep 4743  ax-nul 4751  ax-pow 4805  ax-pr 4869  ax-un 6905  ax-inf2 8485  ax-cnex 9939  ax-resscn 9940  ax-1cn 9941  ax-icn 9942  ax-addcl 9943  ax-addrcl 9944  ax-mulcl 9945  ax-mulrcl 9946  ax-mulcom 9947  ax-addass 9948  ax-mulass 9949  ax-distr 9950  ax-i2m1 9951  ax-1ne0 9952  ax-1rid 9953  ax-rnegex 9954  ax-rrecex 9955  ax-cnre 9956  ax-pre-lttri 9957  ax-pre-lttrn 9958  ax-pre-ltadd 9959  ax-pre-mulgt0 9960  ax-pre-sup 9961  ax-addf 9962  ax-mulf 9963
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-fal 1486  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-nel 2894  df-ral 2912  df-rex 2913  df-reu 2914  df-rmo 2915  df-rab 2916  df-v 3188  df-sbc 3419  df-csb 3516  df-dif 3559  df-un 3561  df-in 3563  df-ss 3570  df-pss 3572  df-nul 3894  df-if 4061  df-pw 4134  df-sn 4151  df-pr 4153  df-tp 4155  df-op 4157  df-uni 4405  df-int 4443  df-iun 4489  df-br 4616  df-opab 4676  df-mpt 4677  df-tr 4715  df-eprel 4987  df-id 4991  df-po 4997  df-so 4998  df-fr 5035  df-se 5036  df-we 5037  df-xp 5082  df-rel 5083  df-cnv 5084  df-co 5085  df-dm 5086  df-rn 5087  df-res 5088  df-ima 5089  df-pred 5641  df-ord 5687  df-on 5688  df-lim 5689  df-suc 5690  df-iota 5812  df-fun 5851  df-fn 5852  df-f 5853  df-f1 5854  df-fo 5855  df-f1o 5856  df-fv 5857  df-isom 5858  df-riota 6568  df-ov 6610  df-oprab 6611  df-mpt2 6612  df-om 7016  df-1st 7116  df-2nd 7117  df-wrecs 7355  df-recs 7416  df-rdg 7454  df-1o 7508  df-oadd 7512  df-er 7690  df-pm 7808  df-en 7903  df-dom 7904  df-sdom 7905  df-fin 7906  df-sup 8295  df-inf 8296  df-oi 8362  df-card 8712  df-pnf 10023  df-mnf 10024  df-xr 10025  df-ltxr 10026  df-le 10027  df-sub 10215  df-neg 10216  df-div 10632  df-nn 10968  df-2 11026  df-3 11027  df-n0 11240  df-z 11325  df-uz 11635  df-rp 11780  df-ico 12126  df-fz 12272  df-fzo 12410  df-fl 12536  df-seq 12745  df-exp 12804  df-fac 13004  df-bc 13033  df-hash 13061  df-shft 13744  df-cj 13776  df-re 13777  df-im 13778  df-sqrt 13912  df-abs 13913  df-limsup 14139  df-clim 14156  df-rlim 14157  df-sum 14354  df-prod 14564  df-ef 14726
This theorem is referenced by: (None)
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