MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  zprod Structured version   Visualization version   GIF version

Theorem zprod 14964
Description: Series product with index set a subset of the upper integers. (Contributed by Scott Fenton, 5-Dec-2017.)
Hypotheses
Ref Expression
zprod.1 𝑍 = (ℤ𝑀)
zprod.2 (𝜑𝑀 ∈ ℤ)
zprod.3 (𝜑 → ∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , 𝐹) ⇝ 𝑦))
zprod.4 (𝜑𝐴𝑍)
zprod.5 ((𝜑𝑘𝑍) → (𝐹𝑘) = if(𝑘𝐴, 𝐵, 1))
zprod.6 ((𝜑𝑘𝐴) → 𝐵 ∈ ℂ)
Assertion
Ref Expression
zprod (𝜑 → ∏𝑘𝐴 𝐵 = ( ⇝ ‘seq𝑀( · , 𝐹)))
Distinct variable groups:   𝐴,𝑘,𝑛,𝑦   𝐵,𝑛,𝑦   𝑘,𝐹   𝑘,𝑛,𝜑,𝑦   𝑘,𝑀,𝑦   𝜑,𝑛,𝑦   𝑛,𝑍
Allowed substitution hints:   𝐵(𝑘)   𝐹(𝑦,𝑛)   𝑀(𝑛)   𝑍(𝑦,𝑘)

Proof of Theorem zprod
Dummy variables 𝑓 𝑔 𝑖 𝑗 𝑚 𝑥 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 3simpb 1180 . . . . . . . 8 ((𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → (𝐴 ⊆ (ℤ𝑚) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
2 nfcv 2907 . . . . . . . . . . . 12 𝑖if(𝑘𝐴, 𝐵, 1)
3 nfv 2009 . . . . . . . . . . . . 13 𝑘 𝑖𝐴
4 nfcsb1v 3709 . . . . . . . . . . . . 13 𝑘𝑖 / 𝑘𝐵
5 nfcv 2907 . . . . . . . . . . . . 13 𝑘1
63, 4, 5nfif 4274 . . . . . . . . . . . 12 𝑘if(𝑖𝐴, 𝑖 / 𝑘𝐵, 1)
7 eleq1w 2827 . . . . . . . . . . . . 13 (𝑘 = 𝑖 → (𝑘𝐴𝑖𝐴))
8 csbeq1a 3702 . . . . . . . . . . . . 13 (𝑘 = 𝑖𝐵 = 𝑖 / 𝑘𝐵)
97, 8ifbieq1d 4268 . . . . . . . . . . . 12 (𝑘 = 𝑖 → if(𝑘𝐴, 𝐵, 1) = if(𝑖𝐴, 𝑖 / 𝑘𝐵, 1))
102, 6, 9cbvmpt 4910 . . . . . . . . . . 11 (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1)) = (𝑖 ∈ ℤ ↦ if(𝑖𝐴, 𝑖 / 𝑘𝐵, 1))
11 simpll 783 . . . . . . . . . . . 12 (((𝜑𝑚 ∈ ℤ) ∧ 𝐴 ⊆ (ℤ𝑚)) → 𝜑)
12 zprod.6 . . . . . . . . . . . . . 14 ((𝜑𝑘𝐴) → 𝐵 ∈ ℂ)
1312ralrimiva 3113 . . . . . . . . . . . . 13 (𝜑 → ∀𝑘𝐴 𝐵 ∈ ℂ)
144nfel1 2922 . . . . . . . . . . . . . 14 𝑘𝑖 / 𝑘𝐵 ∈ ℂ
158eleq1d 2829 . . . . . . . . . . . . . 14 (𝑘 = 𝑖 → (𝐵 ∈ ℂ ↔ 𝑖 / 𝑘𝐵 ∈ ℂ))
1614, 15rspc 3456 . . . . . . . . . . . . 13 (𝑖𝐴 → (∀𝑘𝐴 𝐵 ∈ ℂ → 𝑖 / 𝑘𝐵 ∈ ℂ))
1713, 16syl5 34 . . . . . . . . . . . 12 (𝑖𝐴 → (𝜑𝑖 / 𝑘𝐵 ∈ ℂ))
1811, 17mpan9 502 . . . . . . . . . . 11 ((((𝜑𝑚 ∈ ℤ) ∧ 𝐴 ⊆ (ℤ𝑚)) ∧ 𝑖𝐴) → 𝑖 / 𝑘𝐵 ∈ ℂ)
19 simplr 785 . . . . . . . . . . 11 (((𝜑𝑚 ∈ ℤ) ∧ 𝐴 ⊆ (ℤ𝑚)) → 𝑚 ∈ ℤ)
20 zprod.2 . . . . . . . . . . . 12 (𝜑𝑀 ∈ ℤ)
2120ad2antrr 717 . . . . . . . . . . 11 (((𝜑𝑚 ∈ ℤ) ∧ 𝐴 ⊆ (ℤ𝑚)) → 𝑀 ∈ ℤ)
22 simpr 477 . . . . . . . . . . 11 (((𝜑𝑚 ∈ ℤ) ∧ 𝐴 ⊆ (ℤ𝑚)) → 𝐴 ⊆ (ℤ𝑚))
23 zprod.4 . . . . . . . . . . . . 13 (𝜑𝐴𝑍)
24 zprod.1 . . . . . . . . . . . . 13 𝑍 = (ℤ𝑀)
2523, 24syl6sseq 3813 . . . . . . . . . . . 12 (𝜑𝐴 ⊆ (ℤ𝑀))
2625ad2antrr 717 . . . . . . . . . . 11 (((𝜑𝑚 ∈ ℤ) ∧ 𝐴 ⊆ (ℤ𝑚)) → 𝐴 ⊆ (ℤ𝑀))
2710, 18, 19, 21, 22, 26prodrb 14959 . . . . . . . . . 10 (((𝜑𝑚 ∈ ℤ) ∧ 𝐴 ⊆ (ℤ𝑚)) → (seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥 ↔ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
2827biimpd 220 . . . . . . . . 9 (((𝜑𝑚 ∈ ℤ) ∧ 𝐴 ⊆ (ℤ𝑚)) → (seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥 → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
2928expimpd 445 . . . . . . . 8 ((𝜑𝑚 ∈ ℤ) → ((𝐴 ⊆ (ℤ𝑚) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
301, 29syl5 34 . . . . . . 7 ((𝜑𝑚 ∈ ℤ) → ((𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
3130rexlimdva 3178 . . . . . 6 (𝜑 → (∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
32 uzssz 11911 . . . . . . . . . . . . . . . . 17 (ℤ𝑀) ⊆ ℤ
33 zssre 11635 . . . . . . . . . . . . . . . . 17 ℤ ⊆ ℝ
3432, 33sstri 3772 . . . . . . . . . . . . . . . 16 (ℤ𝑀) ⊆ ℝ
3524, 34eqsstri 3797 . . . . . . . . . . . . . . 15 𝑍 ⊆ ℝ
3623, 35syl6ss 3775 . . . . . . . . . . . . . 14 (𝜑𝐴 ⊆ ℝ)
3736ad2antrr 717 . . . . . . . . . . . . 13 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → 𝐴 ⊆ ℝ)
38 ltso 10376 . . . . . . . . . . . . 13 < Or ℝ
39 soss 5218 . . . . . . . . . . . . 13 (𝐴 ⊆ ℝ → ( < Or ℝ → < Or 𝐴))
4037, 38, 39mpisyl 21 . . . . . . . . . . . 12 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → < Or 𝐴)
41 fzfi 12984 . . . . . . . . . . . . 13 (1...𝑚) ∈ Fin
42 ovex 6878 . . . . . . . . . . . . . . . 16 (1...𝑚) ∈ V
4342f1oen 8185 . . . . . . . . . . . . . . 15 (𝑓:(1...𝑚)–1-1-onto𝐴 → (1...𝑚) ≈ 𝐴)
4443adantl 473 . . . . . . . . . . . . . 14 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → (1...𝑚) ≈ 𝐴)
4544ensymd 8215 . . . . . . . . . . . . 13 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → 𝐴 ≈ (1...𝑚))
46 enfii 8388 . . . . . . . . . . . . 13 (((1...𝑚) ∈ Fin ∧ 𝐴 ≈ (1...𝑚)) → 𝐴 ∈ Fin)
4741, 45, 46sylancr 581 . . . . . . . . . . . 12 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → 𝐴 ∈ Fin)
48 fz1iso 13452 . . . . . . . . . . . 12 (( < Or 𝐴𝐴 ∈ Fin) → ∃𝑔 𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))
4940, 47, 48syl2anc 579 . . . . . . . . . . 11 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → ∃𝑔 𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))
50 simpll 783 . . . . . . . . . . . . . . 15 (((𝜑𝑚 ∈ ℕ) ∧ (𝑓:(1...𝑚)–1-1-onto𝐴𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))) → 𝜑)
5150, 17mpan9 502 . . . . . . . . . . . . . 14 ((((𝜑𝑚 ∈ ℕ) ∧ (𝑓:(1...𝑚)–1-1-onto𝐴𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))) ∧ 𝑖𝐴) → 𝑖 / 𝑘𝐵 ∈ ℂ)
52 fveq2 6379 . . . . . . . . . . . . . . . . 17 (𝑛 = 𝑗 → (𝑓𝑛) = (𝑓𝑗))
5352csbeq1d 3700 . . . . . . . . . . . . . . . 16 (𝑛 = 𝑗(𝑓𝑛) / 𝑘𝐵 = (𝑓𝑗) / 𝑘𝐵)
54 csbco 3703 . . . . . . . . . . . . . . . 16 (𝑓𝑗) / 𝑖𝑖 / 𝑘𝐵 = (𝑓𝑗) / 𝑘𝐵
5553, 54syl6eqr 2817 . . . . . . . . . . . . . . 15 (𝑛 = 𝑗(𝑓𝑛) / 𝑘𝐵 = (𝑓𝑗) / 𝑖𝑖 / 𝑘𝐵)
5655cbvmptv 4911 . . . . . . . . . . . . . 14 (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵) = (𝑗 ∈ ℕ ↦ (𝑓𝑗) / 𝑖𝑖 / 𝑘𝐵)
57 eqid 2765 . . . . . . . . . . . . . 14 (𝑗 ∈ ℕ ↦ (𝑔𝑗) / 𝑖𝑖 / 𝑘𝐵) = (𝑗 ∈ ℕ ↦ (𝑔𝑗) / 𝑖𝑖 / 𝑘𝐵)
58 simplr 785 . . . . . . . . . . . . . 14 (((𝜑𝑚 ∈ ℕ) ∧ (𝑓:(1...𝑚)–1-1-onto𝐴𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))) → 𝑚 ∈ ℕ)
5920ad2antrr 717 . . . . . . . . . . . . . 14 (((𝜑𝑚 ∈ ℕ) ∧ (𝑓:(1...𝑚)–1-1-onto𝐴𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))) → 𝑀 ∈ ℤ)
6025ad2antrr 717 . . . . . . . . . . . . . 14 (((𝜑𝑚 ∈ ℕ) ∧ (𝑓:(1...𝑚)–1-1-onto𝐴𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))) → 𝐴 ⊆ (ℤ𝑀))
61 simprl 787 . . . . . . . . . . . . . 14 (((𝜑𝑚 ∈ ℕ) ∧ (𝑓:(1...𝑚)–1-1-onto𝐴𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))) → 𝑓:(1...𝑚)–1-1-onto𝐴)
62 simprr 789 . . . . . . . . . . . . . 14 (((𝜑𝑚 ∈ ℕ) ∧ (𝑓:(1...𝑚)–1-1-onto𝐴𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))) → 𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))
6310, 51, 56, 57, 58, 59, 60, 61, 62prodmolem2a 14961 . . . . . . . . . . . . 13 (((𝜑𝑚 ∈ ℕ) ∧ (𝑓:(1...𝑚)–1-1-onto𝐴𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴))) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚))
6463expr 448 . . . . . . . . . . . 12 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → (𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚)))
6564exlimdv 2028 . . . . . . . . . . 11 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → (∃𝑔 𝑔 Isom < , < ((1...(♯‘𝐴)), 𝐴) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚)))
6649, 65mpd 15 . . . . . . . . . 10 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚))
67 breq2 4815 . . . . . . . . . 10 (𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚) → (seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥 ↔ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚)))
6866, 67syl5ibrcom 238 . . . . . . . . 9 (((𝜑𝑚 ∈ ℕ) ∧ 𝑓:(1...𝑚)–1-1-onto𝐴) → (𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
6968expimpd 445 . . . . . . . 8 ((𝜑𝑚 ∈ ℕ) → ((𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚)) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
7069exlimdv 2028 . . . . . . 7 ((𝜑𝑚 ∈ ℕ) → (∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚)) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
7170rexlimdva 3178 . . . . . 6 (𝜑 → (∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚)) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
7231, 71jaod 885 . . . . 5 (𝜑 → ((∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚))) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
7320adantr 472 . . . . . . . 8 ((𝜑 ∧ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → 𝑀 ∈ ℤ)
7423adantr 472 . . . . . . . 8 ((𝜑 ∧ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → 𝐴𝑍)
75 zprod.3 . . . . . . . . . 10 (𝜑 → ∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , 𝐹) ⇝ 𝑦))
7624eleq2i 2836 . . . . . . . . . . . 12 (𝑛𝑍𝑛 ∈ (ℤ𝑀))
77 eluzelz 11901 . . . . . . . . . . . . . . . . 17 (𝑛 ∈ (ℤ𝑀) → 𝑛 ∈ ℤ)
7877adantl 473 . . . . . . . . . . . . . . . 16 ((𝜑𝑛 ∈ (ℤ𝑀)) → 𝑛 ∈ ℤ)
79 uztrn 11908 . . . . . . . . . . . . . . . . . . 19 ((𝑧 ∈ (ℤ𝑛) ∧ 𝑛 ∈ (ℤ𝑀)) → 𝑧 ∈ (ℤ𝑀))
8079ancoms 450 . . . . . . . . . . . . . . . . . 18 ((𝑛 ∈ (ℤ𝑀) ∧ 𝑧 ∈ (ℤ𝑛)) → 𝑧 ∈ (ℤ𝑀))
8124eleq2i 2836 . . . . . . . . . . . . . . . . . . . . 21 (𝑘𝑍𝑘 ∈ (ℤ𝑀))
82 zprod.5 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑𝑘𝑍) → (𝐹𝑘) = if(𝑘𝐴, 𝐵, 1))
8324, 32eqsstri 3797 . . . . . . . . . . . . . . . . . . . . . . . 24 𝑍 ⊆ ℤ
8483sseli 3759 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑘𝑍𝑘 ∈ ℤ)
85 iftrue 4251 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑘𝐴 → if(𝑘𝐴, 𝐵, 1) = 𝐵)
8685adantl 473 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑𝑘𝐴) → if(𝑘𝐴, 𝐵, 1) = 𝐵)
8786, 12eqeltrd 2844 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝑘𝐴) → if(𝑘𝐴, 𝐵, 1) ∈ ℂ)
8887ex 401 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝜑 → (𝑘𝐴 → if(𝑘𝐴, 𝐵, 1) ∈ ℂ))
89 iffalse 4254 . . . . . . . . . . . . . . . . . . . . . . . . 25 𝑘𝐴 → if(𝑘𝐴, 𝐵, 1) = 1)
90 ax-1cn 10251 . . . . . . . . . . . . . . . . . . . . . . . . 25 1 ∈ ℂ
9189, 90syl6eqel 2852 . . . . . . . . . . . . . . . . . . . . . . . 24 𝑘𝐴 → if(𝑘𝐴, 𝐵, 1) ∈ ℂ)
9288, 91pm2.61d1 172 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑 → if(𝑘𝐴, 𝐵, 1) ∈ ℂ)
93 eqid 2765 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1)) = (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))
9493fvmpt2 6484 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑘 ∈ ℤ ∧ if(𝑘𝐴, 𝐵, 1) ∈ ℂ) → ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) = if(𝑘𝐴, 𝐵, 1))
9584, 92, 94syl2anr 590 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑𝑘𝑍) → ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) = if(𝑘𝐴, 𝐵, 1))
9682, 95eqtr4d 2802 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑𝑘𝑍) → (𝐹𝑘) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘))
9781, 96sylan2br 588 . . . . . . . . . . . . . . . . . . . 20 ((𝜑𝑘 ∈ (ℤ𝑀)) → (𝐹𝑘) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘))
9897ralrimiva 3113 . . . . . . . . . . . . . . . . . . 19 (𝜑 → ∀𝑘 ∈ (ℤ𝑀)(𝐹𝑘) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘))
99 nffvmpt1 6390 . . . . . . . . . . . . . . . . . . . . 21 𝑘((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧)
10099nfeq2 2923 . . . . . . . . . . . . . . . . . . . 20 𝑘(𝐹𝑧) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧)
101 fveq2 6379 . . . . . . . . . . . . . . . . . . . . 21 (𝑘 = 𝑧 → (𝐹𝑘) = (𝐹𝑧))
102 fveq2 6379 . . . . . . . . . . . . . . . . . . . . 21 (𝑘 = 𝑧 → ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧))
103101, 102eqeq12d 2780 . . . . . . . . . . . . . . . . . . . 20 (𝑘 = 𝑧 → ((𝐹𝑘) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) ↔ (𝐹𝑧) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧)))
104100, 103rspc 3456 . . . . . . . . . . . . . . . . . . 19 (𝑧 ∈ (ℤ𝑀) → (∀𝑘 ∈ (ℤ𝑀)(𝐹𝑘) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) → (𝐹𝑧) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧)))
10598, 104mpan9 502 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑧 ∈ (ℤ𝑀)) → (𝐹𝑧) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧))
10680, 105sylan2 586 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ 𝑧 ∈ (ℤ𝑛))) → (𝐹𝑧) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧))
107106anassrs 459 . . . . . . . . . . . . . . . 16 (((𝜑𝑛 ∈ (ℤ𝑀)) ∧ 𝑧 ∈ (ℤ𝑛)) → (𝐹𝑧) = ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧))
10878, 107seqfeq 13038 . . . . . . . . . . . . . . 15 ((𝜑𝑛 ∈ (ℤ𝑀)) → seq𝑛( · , 𝐹) = seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))))
109108breq1d 4821 . . . . . . . . . . . . . 14 ((𝜑𝑛 ∈ (ℤ𝑀)) → (seq𝑛( · , 𝐹) ⇝ 𝑦 ↔ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦))
110109anbi2d 622 . . . . . . . . . . . . 13 ((𝜑𝑛 ∈ (ℤ𝑀)) → ((𝑦 ≠ 0 ∧ seq𝑛( · , 𝐹) ⇝ 𝑦) ↔ (𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦)))
111110exbidv 2016 . . . . . . . . . . . 12 ((𝜑𝑛 ∈ (ℤ𝑀)) → (∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , 𝐹) ⇝ 𝑦) ↔ ∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦)))
11276, 111sylan2b 587 . . . . . . . . . . 11 ((𝜑𝑛𝑍) → (∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , 𝐹) ⇝ 𝑦) ↔ ∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦)))
113112rexbidva 3196 . . . . . . . . . 10 (𝜑 → (∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , 𝐹) ⇝ 𝑦) ↔ ∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦)))
11475, 113mpbid 223 . . . . . . . . 9 (𝜑 → ∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦))
115114adantr 472 . . . . . . . 8 ((𝜑 ∧ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → ∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦))
116 simpr 477 . . . . . . . 8 ((𝜑 ∧ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥)
117 fveq2 6379 . . . . . . . . . . . 12 (𝑚 = 𝑀 → (ℤ𝑚) = (ℤ𝑀))
118117, 24syl6eqr 2817 . . . . . . . . . . 11 (𝑚 = 𝑀 → (ℤ𝑚) = 𝑍)
119118sseq2d 3795 . . . . . . . . . 10 (𝑚 = 𝑀 → (𝐴 ⊆ (ℤ𝑚) ↔ 𝐴𝑍))
120118rexeqdv 3293 . . . . . . . . . 10 (𝑚 = 𝑀 → (∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ↔ ∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦)))
121 seqeq1 13016 . . . . . . . . . . 11 (𝑚 = 𝑀 → seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) = seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))))
122121breq1d 4821 . . . . . . . . . 10 (𝑚 = 𝑀 → (seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥 ↔ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
123119, 120, 1223anbi123d 1560 . . . . . . . . 9 (𝑚 = 𝑀 → ((𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) ↔ (𝐴𝑍 ∧ ∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥)))
124123rspcev 3462 . . . . . . . 8 ((𝑀 ∈ ℤ ∧ (𝐴𝑍 ∧ ∃𝑛𝑍𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥)) → ∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
12573, 74, 115, 116, 124syl13anc 1491 . . . . . . 7 ((𝜑 ∧ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → ∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
126125orcd 899 . . . . . 6 ((𝜑 ∧ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) → (∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚))))
127126ex 401 . . . . 5 (𝜑 → (seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥 → (∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚)))))
12872, 127impbid 203 . . . 4 (𝜑 → ((∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚))) ↔ seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥))
12995, 82eqtr4d 2802 . . . . . . . . 9 ((𝜑𝑘𝑍) → ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) = (𝐹𝑘))
13081, 129sylan2br 588 . . . . . . . 8 ((𝜑𝑘 ∈ (ℤ𝑀)) → ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) = (𝐹𝑘))
131130ralrimiva 3113 . . . . . . 7 (𝜑 → ∀𝑘 ∈ (ℤ𝑀)((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) = (𝐹𝑘))
13299nfeq1 2921 . . . . . . . 8 𝑘((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧) = (𝐹𝑧)
133102, 101eqeq12d 2780 . . . . . . . 8 (𝑘 = 𝑧 → (((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) = (𝐹𝑘) ↔ ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧) = (𝐹𝑧)))
134132, 133rspc 3456 . . . . . . 7 (𝑧 ∈ (ℤ𝑀) → (∀𝑘 ∈ (ℤ𝑀)((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑘) = (𝐹𝑘) → ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧) = (𝐹𝑧)))
135131, 134mpan9 502 . . . . . 6 ((𝜑𝑧 ∈ (ℤ𝑀)) → ((𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))‘𝑧) = (𝐹𝑧))
13620, 135seqfeq 13038 . . . . 5 (𝜑 → seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) = seq𝑀( · , 𝐹))
137136breq1d 4821 . . . 4 (𝜑 → (seq𝑀( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥 ↔ seq𝑀( · , 𝐹) ⇝ 𝑥))
138128, 137bitrd 270 . . 3 (𝜑 → ((∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚))) ↔ seq𝑀( · , 𝐹) ⇝ 𝑥))
139138iotabidv 6054 . 2 (𝜑 → (℩𝑥(∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚)))) = (℩𝑥seq𝑀( · , 𝐹) ⇝ 𝑥))
140 df-prod 14933 . 2 𝑘𝐴 𝐵 = (℩𝑥(∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ𝑚) ∧ ∃𝑛 ∈ (ℤ𝑚)∃𝑦(𝑦 ≠ 0 ∧ seq𝑛( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑦) ∧ seq𝑚( · , (𝑘 ∈ ℤ ↦ if(𝑘𝐴, 𝐵, 1))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto𝐴𝑥 = (seq1( · , (𝑛 ∈ ℕ ↦ (𝑓𝑛) / 𝑘𝐵))‘𝑚))))
141 df-fv 6078 . 2 ( ⇝ ‘seq𝑀( · , 𝐹)) = (℩𝑥seq𝑀( · , 𝐹) ⇝ 𝑥)
142139, 140, 1413eqtr4g 2824 1 (𝜑 → ∏𝑘𝐴 𝐵 = ( ⇝ ‘seq𝑀( · , 𝐹)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 197  wa 384  wo 873  w3a 1107   = wceq 1652  wex 1874  wcel 2155  wne 2937  wral 3055  wrex 3056  csb 3693  wss 3734  ifcif 4245   class class class wbr 4811  cmpt 4890   Or wor 5199  cio 6031  1-1-ontowf1o 6069  cfv 6070   Isom wiso 6071  (class class class)co 6846  cen 8161  Fincfn 8164  cc 10191  cr 10192  0cc0 10193  1c1 10194   · cmul 10198   < clt 10332  cn 11278  cz 11628  cuz 11891  ...cfz 12538  seqcseq 13013  chash 13326  cli 14514  cprod 14932
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1890  ax-4 1904  ax-5 2005  ax-6 2070  ax-7 2105  ax-8 2157  ax-9 2164  ax-10 2183  ax-11 2198  ax-12 2211  ax-13 2352  ax-ext 2743  ax-rep 4932  ax-sep 4943  ax-nul 4951  ax-pow 5003  ax-pr 5064  ax-un 7151  ax-inf2 8757  ax-cnex 10249  ax-resscn 10250  ax-1cn 10251  ax-icn 10252  ax-addcl 10253  ax-addrcl 10254  ax-mulcl 10255  ax-mulrcl 10256  ax-mulcom 10257  ax-addass 10258  ax-mulass 10259  ax-distr 10260  ax-i2m1 10261  ax-1ne0 10262  ax-1rid 10263  ax-rnegex 10264  ax-rrecex 10265  ax-cnre 10266  ax-pre-lttri 10267  ax-pre-lttrn 10268  ax-pre-ltadd 10269  ax-pre-mulgt0 10270
This theorem depends on definitions:  df-bi 198  df-an 385  df-or 874  df-3or 1108  df-3an 1109  df-tru 1656  df-ex 1875  df-nf 1879  df-sb 2063  df-mo 2565  df-eu 2582  df-clab 2752  df-cleq 2758  df-clel 2761  df-nfc 2896  df-ne 2938  df-nel 3041  df-ral 3060  df-rex 3061  df-reu 3062  df-rmo 3063  df-rab 3064  df-v 3352  df-sbc 3599  df-csb 3694  df-dif 3737  df-un 3739  df-in 3741  df-ss 3748  df-pss 3750  df-nul 4082  df-if 4246  df-pw 4319  df-sn 4337  df-pr 4339  df-tp 4341  df-op 4343  df-uni 4597  df-int 4636  df-iun 4680  df-br 4812  df-opab 4874  df-mpt 4891  df-tr 4914  df-id 5187  df-eprel 5192  df-po 5200  df-so 5201  df-fr 5238  df-se 5239  df-we 5240  df-xp 5285  df-rel 5286  df-cnv 5287  df-co 5288  df-dm 5289  df-rn 5290  df-res 5291  df-ima 5292  df-pred 5867  df-ord 5913  df-on 5914  df-lim 5915  df-suc 5916  df-iota 6033  df-fun 6072  df-fn 6073  df-f 6074  df-f1 6075  df-fo 6076  df-f1o 6077  df-fv 6078  df-isom 6079  df-riota 6807  df-ov 6849  df-oprab 6850  df-mpt2 6851  df-om 7268  df-1st 7370  df-2nd 7371  df-wrecs 7614  df-recs 7676  df-rdg 7714  df-1o 7768  df-oadd 7772  df-er 7951  df-en 8165  df-dom 8166  df-sdom 8167  df-fin 8168  df-oi 8626  df-card 9020  df-pnf 10334  df-mnf 10335  df-xr 10336  df-ltxr 10337  df-le 10338  df-sub 10526  df-neg 10527  df-div 10943  df-nn 11279  df-2 11339  df-n0 11543  df-z 11629  df-uz 11892  df-rp 12034  df-fz 12539  df-fzo 12679  df-seq 13014  df-exp 13073  df-hash 13327  df-cj 14138  df-re 14139  df-im 14140  df-sqrt 14274  df-abs 14275  df-clim 14518  df-prod 14933
This theorem is referenced by:  iprod  14965  zprodn0  14966  prodss  14974
  Copyright terms: Public domain W3C validator