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Theorem fmul01 38545
Description: Multiplying a finite number of values in [ 0 , 1 ] , gives the final product itself a number in [ 0 , 1 ]. (Contributed by Glauco Siliprandi, 20-Apr-2017.)
Hypotheses
Ref Expression
fmul01.1 𝑖𝐵
fmul01.2 𝑖𝜑
fmul01.3 𝐴 = seq𝐿( · , 𝐵)
fmul01.4 (𝜑𝐿 ∈ ℤ)
fmul01.5 (𝜑𝑀 ∈ (ℤ𝐿))
fmul01.6 (𝜑𝐾 ∈ (𝐿...𝑀))
fmul01.7 ((𝜑𝑖 ∈ (𝐿...𝑀)) → (𝐵𝑖) ∈ ℝ)
fmul01.8 ((𝜑𝑖 ∈ (𝐿...𝑀)) → 0 ≤ (𝐵𝑖))
fmul01.9 ((𝜑𝑖 ∈ (𝐿...𝑀)) → (𝐵𝑖) ≤ 1)
Assertion
Ref Expression
fmul01 (𝜑 → (0 ≤ (𝐴𝐾) ∧ (𝐴𝐾) ≤ 1))
Distinct variable groups:   𝑖,𝐿   𝑖,𝑀
Allowed substitution hints:   𝜑(𝑖)   𝐴(𝑖)   𝐵(𝑖)   𝐾(𝑖)

Proof of Theorem fmul01
Dummy variables 𝑗 𝑘 𝑙 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fmul01.6 . 2 (𝜑𝐾 ∈ (𝐿...𝑀))
2 fveq2 5986 . . . . . 6 (𝑘 = 𝐿 → (𝐴𝑘) = (𝐴𝐿))
32breq2d 4493 . . . . 5 (𝑘 = 𝐿 → (0 ≤ (𝐴𝑘) ↔ 0 ≤ (𝐴𝐿)))
42breq1d 4491 . . . . 5 (𝑘 = 𝐿 → ((𝐴𝑘) ≤ 1 ↔ (𝐴𝐿) ≤ 1))
53, 4anbi12d 742 . . . 4 (𝑘 = 𝐿 → ((0 ≤ (𝐴𝑘) ∧ (𝐴𝑘) ≤ 1) ↔ (0 ≤ (𝐴𝐿) ∧ (𝐴𝐿) ≤ 1)))
65imbi2d 328 . . 3 (𝑘 = 𝐿 → ((𝜑 → (0 ≤ (𝐴𝑘) ∧ (𝐴𝑘) ≤ 1)) ↔ (𝜑 → (0 ≤ (𝐴𝐿) ∧ (𝐴𝐿) ≤ 1))))
7 fveq2 5986 . . . . . 6 (𝑘 = 𝑗 → (𝐴𝑘) = (𝐴𝑗))
87breq2d 4493 . . . . 5 (𝑘 = 𝑗 → (0 ≤ (𝐴𝑘) ↔ 0 ≤ (𝐴𝑗)))
97breq1d 4491 . . . . 5 (𝑘 = 𝑗 → ((𝐴𝑘) ≤ 1 ↔ (𝐴𝑗) ≤ 1))
108, 9anbi12d 742 . . . 4 (𝑘 = 𝑗 → ((0 ≤ (𝐴𝑘) ∧ (𝐴𝑘) ≤ 1) ↔ (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)))
1110imbi2d 328 . . 3 (𝑘 = 𝑗 → ((𝜑 → (0 ≤ (𝐴𝑘) ∧ (𝐴𝑘) ≤ 1)) ↔ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1))))
12 fveq2 5986 . . . . . 6 (𝑘 = (𝑗 + 1) → (𝐴𝑘) = (𝐴‘(𝑗 + 1)))
1312breq2d 4493 . . . . 5 (𝑘 = (𝑗 + 1) → (0 ≤ (𝐴𝑘) ↔ 0 ≤ (𝐴‘(𝑗 + 1))))
1412breq1d 4491 . . . . 5 (𝑘 = (𝑗 + 1) → ((𝐴𝑘) ≤ 1 ↔ (𝐴‘(𝑗 + 1)) ≤ 1))
1513, 14anbi12d 742 . . . 4 (𝑘 = (𝑗 + 1) → ((0 ≤ (𝐴𝑘) ∧ (𝐴𝑘) ≤ 1) ↔ (0 ≤ (𝐴‘(𝑗 + 1)) ∧ (𝐴‘(𝑗 + 1)) ≤ 1)))
1615imbi2d 328 . . 3 (𝑘 = (𝑗 + 1) → ((𝜑 → (0 ≤ (𝐴𝑘) ∧ (𝐴𝑘) ≤ 1)) ↔ (𝜑 → (0 ≤ (𝐴‘(𝑗 + 1)) ∧ (𝐴‘(𝑗 + 1)) ≤ 1))))
17 fveq2 5986 . . . . . 6 (𝑘 = 𝐾 → (𝐴𝑘) = (𝐴𝐾))
1817breq2d 4493 . . . . 5 (𝑘 = 𝐾 → (0 ≤ (𝐴𝑘) ↔ 0 ≤ (𝐴𝐾)))
1917breq1d 4491 . . . . 5 (𝑘 = 𝐾 → ((𝐴𝑘) ≤ 1 ↔ (𝐴𝐾) ≤ 1))
2018, 19anbi12d 742 . . . 4 (𝑘 = 𝐾 → ((0 ≤ (𝐴𝑘) ∧ (𝐴𝑘) ≤ 1) ↔ (0 ≤ (𝐴𝐾) ∧ (𝐴𝐾) ≤ 1)))
2120imbi2d 328 . . 3 (𝑘 = 𝐾 → ((𝜑 → (0 ≤ (𝐴𝑘) ∧ (𝐴𝑘) ≤ 1)) ↔ (𝜑 → (0 ≤ (𝐴𝐾) ∧ (𝐴𝐾) ≤ 1))))
22 fmul01.4 . . . . . . . . . 10 (𝜑𝐿 ∈ ℤ)
2322zred 11220 . . . . . . . . 9 (𝜑𝐿 ∈ ℝ)
2423leidd 10341 . . . . . . . 8 (𝜑𝐿𝐿)
25 fmul01.5 . . . . . . . . 9 (𝜑𝑀 ∈ (ℤ𝐿))
26 eluzelz 11433 . . . . . . . . . . 11 (𝑀 ∈ (ℤ𝐿) → 𝑀 ∈ ℤ)
2725, 26syl 17 . . . . . . . . . 10 (𝜑𝑀 ∈ ℤ)
28 eluz 11437 . . . . . . . . . 10 ((𝐿 ∈ ℤ ∧ 𝑀 ∈ ℤ) → (𝑀 ∈ (ℤ𝐿) ↔ 𝐿𝑀))
2922, 27, 28syl2anc 690 . . . . . . . . 9 (𝜑 → (𝑀 ∈ (ℤ𝐿) ↔ 𝐿𝑀))
3025, 29mpbid 220 . . . . . . . 8 (𝜑𝐿𝑀)
31 elfz 12068 . . . . . . . . 9 ((𝐿 ∈ ℤ ∧ 𝐿 ∈ ℤ ∧ 𝑀 ∈ ℤ) → (𝐿 ∈ (𝐿...𝑀) ↔ (𝐿𝐿𝐿𝑀)))
3222, 22, 27, 31syl3anc 1317 . . . . . . . 8 (𝜑 → (𝐿 ∈ (𝐿...𝑀) ↔ (𝐿𝐿𝐿𝑀)))
3324, 30, 32mpbir2and 958 . . . . . . 7 (𝜑𝐿 ∈ (𝐿...𝑀))
3433ancli 571 . . . . . . 7 (𝜑 → (𝜑𝐿 ∈ (𝐿...𝑀)))
35 fmul01.2 . . . . . . . . . 10 𝑖𝜑
36 nfv 1796 . . . . . . . . . 10 𝑖 𝐿 ∈ (𝐿...𝑀)
3735, 36nfan 2059 . . . . . . . . 9 𝑖(𝜑𝐿 ∈ (𝐿...𝑀))
38 nfcv 2655 . . . . . . . . . 10 𝑖0
39 nfcv 2655 . . . . . . . . . 10 𝑖
40 fmul01.1 . . . . . . . . . . 11 𝑖𝐵
41 nfcv 2655 . . . . . . . . . . 11 𝑖𝐿
4240, 41nffv 5993 . . . . . . . . . 10 𝑖(𝐵𝐿)
4338, 39, 42nfbr 4527 . . . . . . . . 9 𝑖0 ≤ (𝐵𝐿)
4437, 43nfim 2051 . . . . . . . 8 𝑖((𝜑𝐿 ∈ (𝐿...𝑀)) → 0 ≤ (𝐵𝐿))
45 eleq1 2580 . . . . . . . . . 10 (𝑖 = 𝐿 → (𝑖 ∈ (𝐿...𝑀) ↔ 𝐿 ∈ (𝐿...𝑀)))
4645anbi2d 735 . . . . . . . . 9 (𝑖 = 𝐿 → ((𝜑𝑖 ∈ (𝐿...𝑀)) ↔ (𝜑𝐿 ∈ (𝐿...𝑀))))
47 fveq2 5986 . . . . . . . . . 10 (𝑖 = 𝐿 → (𝐵𝑖) = (𝐵𝐿))
4847breq2d 4493 . . . . . . . . 9 (𝑖 = 𝐿 → (0 ≤ (𝐵𝑖) ↔ 0 ≤ (𝐵𝐿)))
4946, 48imbi12d 332 . . . . . . . 8 (𝑖 = 𝐿 → (((𝜑𝑖 ∈ (𝐿...𝑀)) → 0 ≤ (𝐵𝑖)) ↔ ((𝜑𝐿 ∈ (𝐿...𝑀)) → 0 ≤ (𝐵𝐿))))
50 fmul01.8 . . . . . . . 8 ((𝜑𝑖 ∈ (𝐿...𝑀)) → 0 ≤ (𝐵𝑖))
5144, 49, 50vtoclg1f 3142 . . . . . . 7 (𝐿 ∈ (𝐿...𝑀) → ((𝜑𝐿 ∈ (𝐿...𝑀)) → 0 ≤ (𝐵𝐿)))
5233, 34, 51sylc 62 . . . . . 6 (𝜑 → 0 ≤ (𝐵𝐿))
53 fmul01.3 . . . . . . . 8 𝐴 = seq𝐿( · , 𝐵)
5453fveq1i 5987 . . . . . . 7 (𝐴𝐿) = (seq𝐿( · , 𝐵)‘𝐿)
55 seq1 12541 . . . . . . . 8 (𝐿 ∈ ℤ → (seq𝐿( · , 𝐵)‘𝐿) = (𝐵𝐿))
5622, 55syl 17 . . . . . . 7 (𝜑 → (seq𝐿( · , 𝐵)‘𝐿) = (𝐵𝐿))
5754, 56syl5eq 2560 . . . . . 6 (𝜑 → (𝐴𝐿) = (𝐵𝐿))
5852, 57breqtrrd 4509 . . . . 5 (𝜑 → 0 ≤ (𝐴𝐿))
59 nfcv 2655 . . . . . . . . . 10 𝑖1
6042, 39, 59nfbr 4527 . . . . . . . . 9 𝑖(𝐵𝐿) ≤ 1
6137, 60nfim 2051 . . . . . . . 8 𝑖((𝜑𝐿 ∈ (𝐿...𝑀)) → (𝐵𝐿) ≤ 1)
6247breq1d 4491 . . . . . . . . 9 (𝑖 = 𝐿 → ((𝐵𝑖) ≤ 1 ↔ (𝐵𝐿) ≤ 1))
6346, 62imbi12d 332 . . . . . . . 8 (𝑖 = 𝐿 → (((𝜑𝑖 ∈ (𝐿...𝑀)) → (𝐵𝑖) ≤ 1) ↔ ((𝜑𝐿 ∈ (𝐿...𝑀)) → (𝐵𝐿) ≤ 1)))
64 fmul01.9 . . . . . . . 8 ((𝜑𝑖 ∈ (𝐿...𝑀)) → (𝐵𝑖) ≤ 1)
6561, 63, 64vtoclg1f 3142 . . . . . . 7 (𝐿 ∈ (𝐿...𝑀) → ((𝜑𝐿 ∈ (𝐿...𝑀)) → (𝐵𝐿) ≤ 1))
6633, 34, 65sylc 62 . . . . . 6 (𝜑 → (𝐵𝐿) ≤ 1)
6757, 66eqbrtrd 4503 . . . . 5 (𝜑 → (𝐴𝐿) ≤ 1)
6858, 67jca 552 . . . 4 (𝜑 → (0 ≤ (𝐴𝐿) ∧ (𝐴𝐿) ≤ 1))
6968a1i 11 . . 3 (𝑀 ∈ (ℤ𝐿) → (𝜑 → (0 ≤ (𝐴𝐿) ∧ (𝐴𝐿) ≤ 1)))
70 elfzouz 12208 . . . . . . . . . 10 (𝑗 ∈ (𝐿..^𝑀) → 𝑗 ∈ (ℤ𝐿))
71703ad2ant1 1074 . . . . . . . . 9 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 𝑗 ∈ (ℤ𝐿))
72 simpl3 1058 . . . . . . . . . 10 (((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) ∧ 𝑘 ∈ (𝐿...𝑗)) → 𝜑)
73 elfzouz2 12218 . . . . . . . . . . . . 13 (𝑗 ∈ (𝐿..^𝑀) → 𝑀 ∈ (ℤ𝑗))
74 fzss2 12117 . . . . . . . . . . . . 13 (𝑀 ∈ (ℤ𝑗) → (𝐿...𝑗) ⊆ (𝐿...𝑀))
7573, 74syl 17 . . . . . . . . . . . 12 (𝑗 ∈ (𝐿..^𝑀) → (𝐿...𝑗) ⊆ (𝐿...𝑀))
76753ad2ant1 1074 . . . . . . . . . . 11 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (𝐿...𝑗) ⊆ (𝐿...𝑀))
7776sselda 3472 . . . . . . . . . 10 (((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) ∧ 𝑘 ∈ (𝐿...𝑗)) → 𝑘 ∈ (𝐿...𝑀))
78 nfv 1796 . . . . . . . . . . . . 13 𝑖 𝑘 ∈ (𝐿...𝑀)
7935, 78nfan 2059 . . . . . . . . . . . 12 𝑖(𝜑𝑘 ∈ (𝐿...𝑀))
80 nfcv 2655 . . . . . . . . . . . . . 14 𝑖𝑘
8140, 80nffv 5993 . . . . . . . . . . . . 13 𝑖(𝐵𝑘)
8281nfel1 2669 . . . . . . . . . . . 12 𝑖(𝐵𝑘) ∈ ℝ
8379, 82nfim 2051 . . . . . . . . . . 11 𝑖((𝜑𝑘 ∈ (𝐿...𝑀)) → (𝐵𝑘) ∈ ℝ)
84 eleq1 2580 . . . . . . . . . . . . 13 (𝑖 = 𝑘 → (𝑖 ∈ (𝐿...𝑀) ↔ 𝑘 ∈ (𝐿...𝑀)))
8584anbi2d 735 . . . . . . . . . . . 12 (𝑖 = 𝑘 → ((𝜑𝑖 ∈ (𝐿...𝑀)) ↔ (𝜑𝑘 ∈ (𝐿...𝑀))))
86 fveq2 5986 . . . . . . . . . . . . 13 (𝑖 = 𝑘 → (𝐵𝑖) = (𝐵𝑘))
8786eleq1d 2576 . . . . . . . . . . . 12 (𝑖 = 𝑘 → ((𝐵𝑖) ∈ ℝ ↔ (𝐵𝑘) ∈ ℝ))
8885, 87imbi12d 332 . . . . . . . . . . 11 (𝑖 = 𝑘 → (((𝜑𝑖 ∈ (𝐿...𝑀)) → (𝐵𝑖) ∈ ℝ) ↔ ((𝜑𝑘 ∈ (𝐿...𝑀)) → (𝐵𝑘) ∈ ℝ)))
89 fmul01.7 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (𝐿...𝑀)) → (𝐵𝑖) ∈ ℝ)
9083, 88, 89chvar 2153 . . . . . . . . . 10 ((𝜑𝑘 ∈ (𝐿...𝑀)) → (𝐵𝑘) ∈ ℝ)
9172, 77, 90syl2anc 690 . . . . . . . . 9 (((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) ∧ 𝑘 ∈ (𝐿...𝑗)) → (𝐵𝑘) ∈ ℝ)
92 remulcl 9774 . . . . . . . . . 10 ((𝑘 ∈ ℝ ∧ 𝑙 ∈ ℝ) → (𝑘 · 𝑙) ∈ ℝ)
9392adantl 480 . . . . . . . . 9 (((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) ∧ (𝑘 ∈ ℝ ∧ 𝑙 ∈ ℝ)) → (𝑘 · 𝑙) ∈ ℝ)
9471, 91, 93seqcl 12548 . . . . . . . 8 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (seq𝐿( · , 𝐵)‘𝑗) ∈ ℝ)
95 simp3 1055 . . . . . . . . 9 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 𝜑)
96 fzofzp1 12296 . . . . . . . . . 10 (𝑗 ∈ (𝐿..^𝑀) → (𝑗 + 1) ∈ (𝐿...𝑀))
97963ad2ant1 1074 . . . . . . . . 9 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (𝑗 + 1) ∈ (𝐿...𝑀))
98 nfv 1796 . . . . . . . . . . . . 13 𝑖(𝑗 + 1) ∈ (𝐿...𝑀)
9935, 98nfan 2059 . . . . . . . . . . . 12 𝑖(𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀))
100 nfcv 2655 . . . . . . . . . . . . . 14 𝑖(𝑗 + 1)
10140, 100nffv 5993 . . . . . . . . . . . . 13 𝑖(𝐵‘(𝑗 + 1))
102101nfel1 2669 . . . . . . . . . . . 12 𝑖(𝐵‘(𝑗 + 1)) ∈ ℝ
10399, 102nfim 2051 . . . . . . . . . . 11 𝑖((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → (𝐵‘(𝑗 + 1)) ∈ ℝ)
104 eleq1 2580 . . . . . . . . . . . . 13 (𝑖 = (𝑗 + 1) → (𝑖 ∈ (𝐿...𝑀) ↔ (𝑗 + 1) ∈ (𝐿...𝑀)))
105104anbi2d 735 . . . . . . . . . . . 12 (𝑖 = (𝑗 + 1) → ((𝜑𝑖 ∈ (𝐿...𝑀)) ↔ (𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀))))
106 fveq2 5986 . . . . . . . . . . . . 13 (𝑖 = (𝑗 + 1) → (𝐵𝑖) = (𝐵‘(𝑗 + 1)))
107106eleq1d 2576 . . . . . . . . . . . 12 (𝑖 = (𝑗 + 1) → ((𝐵𝑖) ∈ ℝ ↔ (𝐵‘(𝑗 + 1)) ∈ ℝ))
108105, 107imbi12d 332 . . . . . . . . . . 11 (𝑖 = (𝑗 + 1) → (((𝜑𝑖 ∈ (𝐿...𝑀)) → (𝐵𝑖) ∈ ℝ) ↔ ((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → (𝐵‘(𝑗 + 1)) ∈ ℝ)))
109103, 108, 89vtoclg1f 3142 . . . . . . . . . 10 ((𝑗 + 1) ∈ (𝐿...𝑀) → ((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → (𝐵‘(𝑗 + 1)) ∈ ℝ))
110109anabsi7 855 . . . . . . . . 9 ((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → (𝐵‘(𝑗 + 1)) ∈ ℝ)
11195, 97, 110syl2anc 690 . . . . . . . 8 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (𝐵‘(𝑗 + 1)) ∈ ℝ)
112 pm3.35 608 . . . . . . . . . . . 12 ((𝜑 ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1))) → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1))
113112ancoms 467 . . . . . . . . . . 11 (((𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1))
114 simpl 471 . . . . . . . . . . 11 ((0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1) → 0 ≤ (𝐴𝑗))
115113, 114syl 17 . . . . . . . . . 10 (((𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 0 ≤ (𝐴𝑗))
1161153adant1 1071 . . . . . . . . 9 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 0 ≤ (𝐴𝑗))
11753fveq1i 5987 . . . . . . . . 9 (𝐴𝑗) = (seq𝐿( · , 𝐵)‘𝑗)
118116, 117syl6breq 4522 . . . . . . . 8 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 0 ≤ (seq𝐿( · , 𝐵)‘𝑗))
119 simp1 1053 . . . . . . . . 9 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 𝑗 ∈ (𝐿..^𝑀))
12096adantl 480 . . . . . . . . . 10 ((𝜑𝑗 ∈ (𝐿..^𝑀)) → (𝑗 + 1) ∈ (𝐿...𝑀))
121 simpl 471 . . . . . . . . . . 11 ((𝜑𝑗 ∈ (𝐿..^𝑀)) → 𝜑)
122121, 120jca 552 . . . . . . . . . 10 ((𝜑𝑗 ∈ (𝐿..^𝑀)) → (𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)))
12338, 39, 101nfbr 4527 . . . . . . . . . . . 12 𝑖0 ≤ (𝐵‘(𝑗 + 1))
12499, 123nfim 2051 . . . . . . . . . . 11 𝑖((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → 0 ≤ (𝐵‘(𝑗 + 1)))
125106breq2d 4493 . . . . . . . . . . . 12 (𝑖 = (𝑗 + 1) → (0 ≤ (𝐵𝑖) ↔ 0 ≤ (𝐵‘(𝑗 + 1))))
126105, 125imbi12d 332 . . . . . . . . . . 11 (𝑖 = (𝑗 + 1) → (((𝜑𝑖 ∈ (𝐿...𝑀)) → 0 ≤ (𝐵𝑖)) ↔ ((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → 0 ≤ (𝐵‘(𝑗 + 1)))))
127124, 126, 50vtoclg1f 3142 . . . . . . . . . 10 ((𝑗 + 1) ∈ (𝐿...𝑀) → ((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → 0 ≤ (𝐵‘(𝑗 + 1))))
128120, 122, 127sylc 62 . . . . . . . . 9 ((𝜑𝑗 ∈ (𝐿..^𝑀)) → 0 ≤ (𝐵‘(𝑗 + 1)))
12995, 119, 128syl2anc 690 . . . . . . . 8 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 0 ≤ (𝐵‘(𝑗 + 1)))
13094, 111, 118, 129mulge0d 10351 . . . . . . 7 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 0 ≤ ((seq𝐿( · , 𝐵)‘𝑗) · (𝐵‘(𝑗 + 1))))
131 seqp1 12543 . . . . . . . 8 (𝑗 ∈ (ℤ𝐿) → (seq𝐿( · , 𝐵)‘(𝑗 + 1)) = ((seq𝐿( · , 𝐵)‘𝑗) · (𝐵‘(𝑗 + 1))))
13271, 131syl 17 . . . . . . 7 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (seq𝐿( · , 𝐵)‘(𝑗 + 1)) = ((seq𝐿( · , 𝐵)‘𝑗) · (𝐵‘(𝑗 + 1))))
133130, 132breqtrrd 4509 . . . . . 6 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 0 ≤ (seq𝐿( · , 𝐵)‘(𝑗 + 1)))
13453fveq1i 5987 . . . . . 6 (𝐴‘(𝑗 + 1)) = (seq𝐿( · , 𝐵)‘(𝑗 + 1))
135133, 134syl6breqr 4523 . . . . 5 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 0 ≤ (𝐴‘(𝑗 + 1)))
13694, 111remulcld 9823 . . . . . . . 8 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → ((seq𝐿( · , 𝐵)‘𝑗) · (𝐵‘(𝑗 + 1))) ∈ ℝ)
137 1red 9808 . . . . . . . 8 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → 1 ∈ ℝ)
13895, 97jca 552 . . . . . . . . . . 11 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)))
139101, 39, 59nfbr 4527 . . . . . . . . . . . . 13 𝑖(𝐵‘(𝑗 + 1)) ≤ 1
14099, 139nfim 2051 . . . . . . . . . . . 12 𝑖((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → (𝐵‘(𝑗 + 1)) ≤ 1)
141106breq1d 4491 . . . . . . . . . . . . 13 (𝑖 = (𝑗 + 1) → ((𝐵𝑖) ≤ 1 ↔ (𝐵‘(𝑗 + 1)) ≤ 1))
142105, 141imbi12d 332 . . . . . . . . . . . 12 (𝑖 = (𝑗 + 1) → (((𝜑𝑖 ∈ (𝐿...𝑀)) → (𝐵𝑖) ≤ 1) ↔ ((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → (𝐵‘(𝑗 + 1)) ≤ 1)))
143140, 142, 64vtoclg1f 3142 . . . . . . . . . . 11 ((𝑗 + 1) ∈ (𝐿...𝑀) → ((𝜑 ∧ (𝑗 + 1) ∈ (𝐿...𝑀)) → (𝐵‘(𝑗 + 1)) ≤ 1))
14497, 138, 143sylc 62 . . . . . . . . . 10 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (𝐵‘(𝑗 + 1)) ≤ 1)
145111, 137, 94, 118, 144lemul2ad 10712 . . . . . . . . 9 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → ((seq𝐿( · , 𝐵)‘𝑗) · (𝐵‘(𝑗 + 1))) ≤ ((seq𝐿( · , 𝐵)‘𝑗) · 1))
14694recnd 9821 . . . . . . . . . 10 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (seq𝐿( · , 𝐵)‘𝑗) ∈ ℂ)
147146mulid1d 9810 . . . . . . . . 9 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → ((seq𝐿( · , 𝐵)‘𝑗) · 1) = (seq𝐿( · , 𝐵)‘𝑗))
148145, 147breqtrd 4507 . . . . . . . 8 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → ((seq𝐿( · , 𝐵)‘𝑗) · (𝐵‘(𝑗 + 1))) ≤ (seq𝐿( · , 𝐵)‘𝑗))
149 simp2 1054 . . . . . . . . . 10 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)))
150112simprd 477 . . . . . . . . . 10 ((𝜑 ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1))) → (𝐴𝑗) ≤ 1)
15195, 149, 150syl2anc 690 . . . . . . . . 9 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (𝐴𝑗) ≤ 1)
152117, 151syl5eqbrr 4517 . . . . . . . 8 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (seq𝐿( · , 𝐵)‘𝑗) ≤ 1)
153136, 94, 137, 148, 152letrd 9943 . . . . . . 7 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → ((seq𝐿( · , 𝐵)‘𝑗) · (𝐵‘(𝑗 + 1))) ≤ 1)
154132, 153eqbrtrd 4503 . . . . . 6 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (seq𝐿( · , 𝐵)‘(𝑗 + 1)) ≤ 1)
155134, 154syl5eqbr 4516 . . . . 5 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (𝐴‘(𝑗 + 1)) ≤ 1)
156135, 155jca 552 . . . 4 ((𝑗 ∈ (𝐿..^𝑀) ∧ (𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) ∧ 𝜑) → (0 ≤ (𝐴‘(𝑗 + 1)) ∧ (𝐴‘(𝑗 + 1)) ≤ 1))
1571563exp 1255 . . 3 (𝑗 ∈ (𝐿..^𝑀) → ((𝜑 → (0 ≤ (𝐴𝑗) ∧ (𝐴𝑗) ≤ 1)) → (𝜑 → (0 ≤ (𝐴‘(𝑗 + 1)) ∧ (𝐴‘(𝑗 + 1)) ≤ 1))))
1586, 11, 16, 21, 69, 157fzind2 12313 . 2 (𝐾 ∈ (𝐿...𝑀) → (𝜑 → (0 ≤ (𝐴𝐾) ∧ (𝐴𝐾) ≤ 1)))
1591, 158mpcom 37 1 (𝜑 → (0 ≤ (𝐴𝐾) ∧ (𝐴𝐾) ≤ 1))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 194  wa 382  w3a 1030   = wceq 1474  wnf 1698  wcel 1938  wnfc 2642  wss 3444   class class class wbr 4481  cfv 5689  (class class class)co 6425  cr 9688  0cc0 9689  1c1 9690   + caddc 9692   · cmul 9694  cle 9828  cz 11116  cuz 11423  ...cfz 12062  ..^cfzo 12199  seqcseq 12528
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1700  ax-4 1713  ax-5 1793  ax-6 1838  ax-7 1885  ax-8 1940  ax-9 1947  ax-10 1966  ax-11 1971  ax-12 1983  ax-13 2137  ax-ext 2494  ax-sep 4607  ax-nul 4616  ax-pow 4668  ax-pr 4732  ax-un 6721  ax-cnex 9745  ax-resscn 9746  ax-1cn 9747  ax-icn 9748  ax-addcl 9749  ax-addrcl 9750  ax-mulcl 9751  ax-mulrcl 9752  ax-mulcom 9753  ax-addass 9754  ax-mulass 9755  ax-distr 9756  ax-i2m1 9757  ax-1ne0 9758  ax-1rid 9759  ax-rnegex 9760  ax-rrecex 9761  ax-cnre 9762  ax-pre-lttri 9763  ax-pre-lttrn 9764  ax-pre-ltadd 9765  ax-pre-mulgt0 9766
This theorem depends on definitions:  df-bi 195  df-or 383  df-an 384  df-3or 1031  df-3an 1032  df-tru 1477  df-ex 1695  df-nf 1699  df-sb 1831  df-eu 2366  df-mo 2367  df-clab 2501  df-cleq 2507  df-clel 2510  df-nfc 2644  df-ne 2686  df-nel 2687  df-ral 2805  df-rex 2806  df-reu 2807  df-rab 2809  df-v 3079  df-sbc 3307  df-csb 3404  df-dif 3447  df-un 3449  df-in 3451  df-ss 3458  df-pss 3460  df-nul 3778  df-if 3940  df-pw 4013  df-sn 4029  df-pr 4031  df-tp 4033  df-op 4035  df-uni 4271  df-iun 4355  df-br 4482  df-opab 4542  df-mpt 4543  df-tr 4579  df-eprel 4843  df-id 4847  df-po 4853  df-so 4854  df-fr 4891  df-we 4893  df-xp 4938  df-rel 4939  df-cnv 4940  df-co 4941  df-dm 4942  df-rn 4943  df-res 4944  df-ima 4945  df-pred 5487  df-ord 5533  df-on 5534  df-lim 5535  df-suc 5536  df-iota 5653  df-fun 5691  df-fn 5692  df-f 5693  df-f1 5694  df-fo 5695  df-f1o 5696  df-fv 5697  df-riota 6387  df-ov 6428  df-oprab 6429  df-mpt2 6430  df-om 6832  df-1st 6932  df-2nd 6933  df-wrecs 7167  df-recs 7229  df-rdg 7267  df-er 7503  df-en 7716  df-dom 7717  df-sdom 7718  df-pnf 9829  df-mnf 9830  df-xr 9831  df-ltxr 9832  df-le 9833  df-sub 10017  df-neg 10018  df-nn 10774  df-n0 11046  df-z 11117  df-uz 11424  df-fz 12063  df-fzo 12200  df-seq 12529
This theorem is referenced by:  fmul01lt1lem1  38549  fmul01lt1lem2  38550
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