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Theorem smueqlem 16509
Description: Any element of a sequence multiplication only depends on the values of the argument sequences up to and including that point. (Contributed by Mario Carneiro, 20-Sep-2016.)
Hypotheses
Ref Expression
smueq.a (𝜑𝐴 ⊆ ℕ0)
smueq.b (𝜑𝐵 ⊆ ℕ0)
smueq.n (𝜑𝑁 ∈ ℕ0)
smueq.p 𝑃 = seq0((𝑝 ∈ 𝒫 ℕ0, 𝑚 ∈ ℕ0 ↦ (𝑝 sadd {𝑛 ∈ ℕ0 ∣ (𝑚𝐴 ∧ (𝑛𝑚) ∈ 𝐵)})), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))
smueq.q 𝑄 = seq0((𝑝 ∈ 𝒫 ℕ0, 𝑚 ∈ ℕ0 ↦ (𝑝 sadd {𝑛 ∈ ℕ0 ∣ (𝑚𝐴 ∧ (𝑛𝑚) ∈ (𝐵 ∩ (0..^𝑁)))})), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))
Assertion
Ref Expression
smueqlem (𝜑 → ((𝐴 smul 𝐵) ∩ (0..^𝑁)) = (((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∩ (0..^𝑁)))
Distinct variable groups:   𝑚,𝑛,𝑝,𝐴   𝐵,𝑚,𝑛,𝑝   𝑚,𝑁,𝑛,𝑝   𝜑,𝑛
Allowed substitution hints:   𝜑(𝑚,𝑝)   𝑃(𝑚,𝑛,𝑝)   𝑄(𝑚,𝑛,𝑝)

Proof of Theorem smueqlem
Dummy variables 𝑘 𝑖 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 smueq.a . . . . . . . 8 (𝜑𝐴 ⊆ ℕ0)
21adantr 480 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝐴 ⊆ ℕ0)
3 smueq.b . . . . . . . 8 (𝜑𝐵 ⊆ ℕ0)
43adantr 480 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝐵 ⊆ ℕ0)
5 smueq.p . . . . . . 7 𝑃 = seq0((𝑝 ∈ 𝒫 ℕ0, 𝑚 ∈ ℕ0 ↦ (𝑝 sadd {𝑛 ∈ ℕ0 ∣ (𝑚𝐴 ∧ (𝑛𝑚) ∈ 𝐵)})), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))
6 elfzouz 13680 . . . . . . . . 9 (𝑘 ∈ (0..^𝑁) → 𝑘 ∈ (ℤ‘0))
76adantl 481 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑘 ∈ (ℤ‘0))
8 nn0uz 12894 . . . . . . . 8 0 = (ℤ‘0)
97, 8eleqtrrdi 2845 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑘 ∈ ℕ0)
109nn0zd 12614 . . . . . . . . 9 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑘 ∈ ℤ)
1110peano2zd 12700 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 + 1) ∈ ℤ)
12 smueq.n . . . . . . . . . 10 (𝜑𝑁 ∈ ℕ0)
1312adantr 480 . . . . . . . . 9 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑁 ∈ ℕ0)
1413nn0zd 12614 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑁 ∈ ℤ)
15 elfzolt2 13685 . . . . . . . . . 10 (𝑘 ∈ (0..^𝑁) → 𝑘 < 𝑁)
1615adantl 481 . . . . . . . . 9 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑘 < 𝑁)
17 nn0ltp1le 12651 . . . . . . . . . 10 ((𝑘 ∈ ℕ0𝑁 ∈ ℕ0) → (𝑘 < 𝑁 ↔ (𝑘 + 1) ≤ 𝑁))
189, 13, 17syl2anc 584 . . . . . . . . 9 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 < 𝑁 ↔ (𝑘 + 1) ≤ 𝑁))
1916, 18mpbid 232 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 + 1) ≤ 𝑁)
20 eluz2 12858 . . . . . . . 8 (𝑁 ∈ (ℤ‘(𝑘 + 1)) ↔ ((𝑘 + 1) ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ (𝑘 + 1) ≤ 𝑁))
2111, 14, 19, 20syl3anbrc 1344 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑁 ∈ (ℤ‘(𝑘 + 1)))
222, 4, 5, 9, 21smuval2 16501 . . . . . 6 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ (𝐴 smul 𝐵) ↔ 𝑘 ∈ (𝑃𝑁)))
2312, 8eleqtrdi 2844 . . . . . . . . . . 11 (𝜑𝑁 ∈ (ℤ‘0))
24 eluzfz2b 13550 . . . . . . . . . . 11 (𝑁 ∈ (ℤ‘0) ↔ 𝑁 ∈ (0...𝑁))
2523, 24sylib 218 . . . . . . . . . 10 (𝜑𝑁 ∈ (0...𝑁))
26 fveq2 6876 . . . . . . . . . . . . . 14 (𝑥 = 0 → (𝑃𝑥) = (𝑃‘0))
2726ineq1d 4194 . . . . . . . . . . . . 13 (𝑥 = 0 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑃‘0) ∩ (0..^𝑁)))
28 fveq2 6876 . . . . . . . . . . . . . 14 (𝑥 = 0 → (𝑄𝑥) = (𝑄‘0))
2928ineq1d 4194 . . . . . . . . . . . . 13 (𝑥 = 0 → ((𝑄𝑥) ∩ (0..^𝑁)) = ((𝑄‘0) ∩ (0..^𝑁)))
3027, 29eqeq12d 2751 . . . . . . . . . . . 12 (𝑥 = 0 → (((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁)) ↔ ((𝑃‘0) ∩ (0..^𝑁)) = ((𝑄‘0) ∩ (0..^𝑁))))
3130imbi2d 340 . . . . . . . . . . 11 (𝑥 = 0 → ((𝜑 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁))) ↔ (𝜑 → ((𝑃‘0) ∩ (0..^𝑁)) = ((𝑄‘0) ∩ (0..^𝑁)))))
32 fveq2 6876 . . . . . . . . . . . . . 14 (𝑥 = 𝑖 → (𝑃𝑥) = (𝑃𝑖))
3332ineq1d 4194 . . . . . . . . . . . . 13 (𝑥 = 𝑖 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑃𝑖) ∩ (0..^𝑁)))
34 fveq2 6876 . . . . . . . . . . . . . 14 (𝑥 = 𝑖 → (𝑄𝑥) = (𝑄𝑖))
3534ineq1d 4194 . . . . . . . . . . . . 13 (𝑥 = 𝑖 → ((𝑄𝑥) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)))
3633, 35eqeq12d 2751 . . . . . . . . . . . 12 (𝑥 = 𝑖 → (((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁)) ↔ ((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁))))
3736imbi2d 340 . . . . . . . . . . 11 (𝑥 = 𝑖 → ((𝜑 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁))) ↔ (𝜑 → ((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)))))
38 fveq2 6876 . . . . . . . . . . . . . 14 (𝑥 = (𝑖 + 1) → (𝑃𝑥) = (𝑃‘(𝑖 + 1)))
3938ineq1d 4194 . . . . . . . . . . . . 13 (𝑥 = (𝑖 + 1) → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)))
40 fveq2 6876 . . . . . . . . . . . . . 14 (𝑥 = (𝑖 + 1) → (𝑄𝑥) = (𝑄‘(𝑖 + 1)))
4140ineq1d 4194 . . . . . . . . . . . . 13 (𝑥 = (𝑖 + 1) → ((𝑄𝑥) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)))
4239, 41eqeq12d 2751 . . . . . . . . . . . 12 (𝑥 = (𝑖 + 1) → (((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁)) ↔ ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁))))
4342imbi2d 340 . . . . . . . . . . 11 (𝑥 = (𝑖 + 1) → ((𝜑 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁))) ↔ (𝜑 → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)))))
44 fveq2 6876 . . . . . . . . . . . . . 14 (𝑥 = 𝑁 → (𝑃𝑥) = (𝑃𝑁))
4544ineq1d 4194 . . . . . . . . . . . . 13 (𝑥 = 𝑁 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑃𝑁) ∩ (0..^𝑁)))
46 fveq2 6876 . . . . . . . . . . . . . 14 (𝑥 = 𝑁 → (𝑄𝑥) = (𝑄𝑁))
4746ineq1d 4194 . . . . . . . . . . . . 13 (𝑥 = 𝑁 → ((𝑄𝑥) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁)))
4845, 47eqeq12d 2751 . . . . . . . . . . . 12 (𝑥 = 𝑁 → (((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁)) ↔ ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁))))
4948imbi2d 340 . . . . . . . . . . 11 (𝑥 = 𝑁 → ((𝜑 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁))) ↔ (𝜑 → ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁)))))
501, 3, 5smup0 16498 . . . . . . . . . . . . . 14 (𝜑 → (𝑃‘0) = ∅)
51 inss1 4212 . . . . . . . . . . . . . . . 16 (𝐵 ∩ (0..^𝑁)) ⊆ 𝐵
5251, 3sstrid 3970 . . . . . . . . . . . . . . 15 (𝜑 → (𝐵 ∩ (0..^𝑁)) ⊆ ℕ0)
53 smueq.q . . . . . . . . . . . . . . 15 𝑄 = seq0((𝑝 ∈ 𝒫 ℕ0, 𝑚 ∈ ℕ0 ↦ (𝑝 sadd {𝑛 ∈ ℕ0 ∣ (𝑚𝐴 ∧ (𝑛𝑚) ∈ (𝐵 ∩ (0..^𝑁)))})), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))
541, 52, 53smup0 16498 . . . . . . . . . . . . . 14 (𝜑 → (𝑄‘0) = ∅)
5550, 54eqtr4d 2773 . . . . . . . . . . . . 13 (𝜑 → (𝑃‘0) = (𝑄‘0))
5655ineq1d 4194 . . . . . . . . . . . 12 (𝜑 → ((𝑃‘0) ∩ (0..^𝑁)) = ((𝑄‘0) ∩ (0..^𝑁)))
5756a1i 11 . . . . . . . . . . 11 (𝑁 ∈ (ℤ‘0) → (𝜑 → ((𝑃‘0) ∩ (0..^𝑁)) = ((𝑄‘0) ∩ (0..^𝑁))))
58 oveq1 7412 . . . . . . . . . . . . . . 15 (((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)) → (((𝑃𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) = (((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))))
5958ineq1d 4194 . . . . . . . . . . . . . 14 (((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)) → ((((𝑃𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)) = ((((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)))
601adantr 480 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → 𝐴 ⊆ ℕ0)
613adantr 480 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → 𝐵 ⊆ ℕ0)
62 elfzonn0 13724 . . . . . . . . . . . . . . . . . . 19 (𝑖 ∈ (0..^𝑁) → 𝑖 ∈ ℕ0)
6362adantl 481 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → 𝑖 ∈ ℕ0)
6460, 61, 5, 63smupp1 16499 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑃‘(𝑖 + 1)) = ((𝑃𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)}))
6564ineq1d 4194 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑁)) → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = (((𝑃𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)}) ∩ (0..^𝑁)))
661, 3, 5smupf 16497 . . . . . . . . . . . . . . . . . . 19 (𝜑𝑃:ℕ0⟶𝒫 ℕ0)
67 ffvelcdm 7071 . . . . . . . . . . . . . . . . . . 19 ((𝑃:ℕ0⟶𝒫 ℕ0𝑖 ∈ ℕ0) → (𝑃𝑖) ∈ 𝒫 ℕ0)
6866, 62, 67syl2an 596 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑃𝑖) ∈ 𝒫 ℕ0)
6968elpwid 4584 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑃𝑖) ⊆ ℕ0)
70 ssrab2 4055 . . . . . . . . . . . . . . . . . 18 {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ⊆ ℕ0
7170a1i 11 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ⊆ ℕ0)
7212adantr 480 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → 𝑁 ∈ ℕ0)
7369, 71, 72sadeq 16491 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑁)) → (((𝑃𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)}) ∩ (0..^𝑁)) = ((((𝑃𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)))
7465, 73eqtrd 2770 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑁)) → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((((𝑃𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)))
7552adantr 480 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝐵 ∩ (0..^𝑁)) ⊆ ℕ0)
7660, 75, 53, 63smupp1 16499 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑄‘(𝑖 + 1)) = ((𝑄𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))}))
7776ineq1d 4194 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑁)) → ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)) = (((𝑄𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))}) ∩ (0..^𝑁)))
781, 52, 53smupf 16497 . . . . . . . . . . . . . . . . . . 19 (𝜑𝑄:ℕ0⟶𝒫 ℕ0)
79 ffvelcdm 7071 . . . . . . . . . . . . . . . . . . 19 ((𝑄:ℕ0⟶𝒫 ℕ0𝑖 ∈ ℕ0) → (𝑄𝑖) ∈ 𝒫 ℕ0)
8078, 62, 79syl2an 596 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑄𝑖) ∈ 𝒫 ℕ0)
8180elpwid 4584 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑄𝑖) ⊆ ℕ0)
82 ssrab2 4055 . . . . . . . . . . . . . . . . . 18 {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ⊆ ℕ0
8382a1i 11 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ⊆ ℕ0)
8481, 83, 72sadeq 16491 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑁)) → (((𝑄𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))}) ∩ (0..^𝑁)) = ((((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ∩ (0..^𝑁))) ∩ (0..^𝑁)))
85 elinel2 4177 . . . . . . . . . . . . . . . . . . . . 21 (𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) → 𝑛 ∈ (0..^𝑁))
8661adantr 480 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝐵 ⊆ ℕ0)
8786sseld 3957 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ 𝐵 → (𝑛𝑖) ∈ ℕ0))
88 elfzo0 13717 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑛 ∈ (0..^𝑁) ↔ (𝑛 ∈ ℕ0𝑁 ∈ ℕ ∧ 𝑛 < 𝑁))
8988simp2bi 1146 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝑛 ∈ (0..^𝑁) → 𝑁 ∈ ℕ)
9089adantl 481 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑁 ∈ ℕ)
91 elfzonn0 13724 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (𝑛 ∈ (0..^𝑁) → 𝑛 ∈ ℕ0)
9291adantl 481 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑛 ∈ ℕ0)
9392nn0red 12563 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑛 ∈ ℝ)
9463adantr 480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑖 ∈ ℕ0)
9594nn0red 12563 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑖 ∈ ℝ)
9693, 95resubcld 11665 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (𝑛𝑖) ∈ ℝ)
9790nnred 12255 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑁 ∈ ℝ)
9894nn0ge0d 12565 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 0 ≤ 𝑖)
9993, 95subge02d 11829 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (0 ≤ 𝑖 ↔ (𝑛𝑖) ≤ 𝑛))
10098, 99mpbid 232 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (𝑛𝑖) ≤ 𝑛)
101 elfzolt2 13685 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑛 ∈ (0..^𝑁) → 𝑛 < 𝑁)
102101adantl 481 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑛 < 𝑁)
10396, 93, 97, 100, 102lelttrd 11393 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (𝑛𝑖) < 𝑁)
10490, 103jca 511 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁))
105 elfzo0 13717 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝑛𝑖) ∈ (0..^𝑁) ↔ ((𝑛𝑖) ∈ ℕ0𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁))
106 3anass 1094 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝑛𝑖) ∈ ℕ0𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁) ↔ ((𝑛𝑖) ∈ ℕ0 ∧ (𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁)))
107105, 106bitri 275 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑛𝑖) ∈ (0..^𝑁) ↔ ((𝑛𝑖) ∈ ℕ0 ∧ (𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁)))
108107baib 535 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑛𝑖) ∈ ℕ0 → ((𝑛𝑖) ∈ (0..^𝑁) ↔ (𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁)))
109104, 108syl5ibrcom 247 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ ℕ0 → (𝑛𝑖) ∈ (0..^𝑁)))
11087, 109syld 47 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ 𝐵 → (𝑛𝑖) ∈ (0..^𝑁)))
111110pm4.71rd 562 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ 𝐵 ↔ ((𝑛𝑖) ∈ (0..^𝑁) ∧ (𝑛𝑖) ∈ 𝐵)))
112 ancom 460 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝑛𝑖) ∈ (0..^𝑁) ∧ (𝑛𝑖) ∈ 𝐵) ↔ ((𝑛𝑖) ∈ 𝐵 ∧ (𝑛𝑖) ∈ (0..^𝑁)))
113 elin 3942 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)) ↔ ((𝑛𝑖) ∈ 𝐵 ∧ (𝑛𝑖) ∈ (0..^𝑁)))
114112, 113bitr4i 278 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝑛𝑖) ∈ (0..^𝑁) ∧ (𝑛𝑖) ∈ 𝐵) ↔ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))
115111, 114bitr2di 288 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)) ↔ (𝑛𝑖) ∈ 𝐵))
116115anbi2d 630 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁))) ↔ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)))
11785, 116sylan2 593 . . . . . . . . . . . . . . . . . . . 20 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (ℕ0 ∩ (0..^𝑁))) → ((𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁))) ↔ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)))
118117rabbidva 3422 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑖 ∈ (0..^𝑁)) → {𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} = {𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)})
119 inrab2 4292 . . . . . . . . . . . . . . . . . . 19 ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ∩ (0..^𝑁)) = {𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))}
120 inrab2 4292 . . . . . . . . . . . . . . . . . . 19 ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁)) = {𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)}
121118, 119, 1203eqtr4g 2795 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ∩ (0..^𝑁)) = ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁)))
122121oveq2d 7421 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ∩ (0..^𝑁))) = (((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))))
123122ineq1d 4194 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑁)) → ((((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ∩ (0..^𝑁))) ∩ (0..^𝑁)) = ((((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)))
12477, 84, 1233eqtrd 2774 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑁)) → ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)))
12574, 124eqeq12d 2751 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0..^𝑁)) → (((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)) ↔ ((((𝑃𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)) = ((((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁))))
12659, 125imbitrrid 246 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0..^𝑁)) → (((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)) → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁))))
127126expcom 413 . . . . . . . . . . . 12 (𝑖 ∈ (0..^𝑁) → (𝜑 → (((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)) → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)))))
128127a2d 29 . . . . . . . . . . 11 (𝑖 ∈ (0..^𝑁) → ((𝜑 → ((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁))) → (𝜑 → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)))))
12931, 37, 43, 49, 57, 128fzind2 13801 . . . . . . . . . 10 (𝑁 ∈ (0...𝑁) → (𝜑 → ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁))))
13025, 129mpcom 38 . . . . . . . . 9 (𝜑 → ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁)))
131130adantr 480 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁)))
132131eleq2d 2820 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ ((𝑃𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ ((𝑄𝑁) ∩ (0..^𝑁))))
133 elin 3942 . . . . . . . . 9 (𝑘 ∈ ((𝑃𝑁) ∩ (0..^𝑁)) ↔ (𝑘 ∈ (𝑃𝑁) ∧ 𝑘 ∈ (0..^𝑁)))
134133rbaib 538 . . . . . . . 8 (𝑘 ∈ (0..^𝑁) → (𝑘 ∈ ((𝑃𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (𝑃𝑁)))
135134adantl 481 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ ((𝑃𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (𝑃𝑁)))
136 elin 3942 . . . . . . . . 9 (𝑘 ∈ ((𝑄𝑁) ∩ (0..^𝑁)) ↔ (𝑘 ∈ (𝑄𝑁) ∧ 𝑘 ∈ (0..^𝑁)))
137136rbaib 538 . . . . . . . 8 (𝑘 ∈ (0..^𝑁) → (𝑘 ∈ ((𝑄𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (𝑄𝑁)))
138137adantl 481 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ ((𝑄𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (𝑄𝑁)))
139132, 135, 1383bitr3d 309 . . . . . 6 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ (𝑃𝑁) ↔ 𝑘 ∈ (𝑄𝑁)))
14052adantr 480 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝐵 ∩ (0..^𝑁)) ⊆ ℕ0)
1412, 140, 53, 13smupval 16507 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑄𝑁) = ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))))
142141eleq2d 2820 . . . . . 6 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ (𝑄𝑁) ↔ 𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁)))))
14322, 139, 1423bitrd 305 . . . . 5 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ (𝐴 smul 𝐵) ↔ 𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁)))))
144143ex 412 . . . 4 (𝜑 → (𝑘 ∈ (0..^𝑁) → (𝑘 ∈ (𝐴 smul 𝐵) ↔ 𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))))))
145144pm5.32rd 578 . . 3 (𝜑 → ((𝑘 ∈ (𝐴 smul 𝐵) ∧ 𝑘 ∈ (0..^𝑁)) ↔ (𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∧ 𝑘 ∈ (0..^𝑁))))
146 elin 3942 . . 3 (𝑘 ∈ ((𝐴 smul 𝐵) ∩ (0..^𝑁)) ↔ (𝑘 ∈ (𝐴 smul 𝐵) ∧ 𝑘 ∈ (0..^𝑁)))
147 elin 3942 . . 3 (𝑘 ∈ (((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∩ (0..^𝑁)) ↔ (𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∧ 𝑘 ∈ (0..^𝑁)))
148145, 146, 1473bitr4g 314 . 2 (𝜑 → (𝑘 ∈ ((𝐴 smul 𝐵) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∩ (0..^𝑁))))
149148eqrdv 2733 1 (𝜑 → ((𝐴 smul 𝐵) ∩ (0..^𝑁)) = (((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∩ (0..^𝑁)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395  w3a 1086   = wceq 1540  wcel 2108  {crab 3415  cin 3925  wss 3926  c0 4308  ifcif 4500  𝒫 cpw 4575   class class class wbr 5119  cmpt 5201  wf 6527  cfv 6531  (class class class)co 7405  cmpo 7407  0cc0 11129  1c1 11130   + caddc 11132   < clt 11269  cle 11270  cmin 11466  cn 12240  0cn0 12501  cz 12588  cuz 12852  ...cfz 13524  ..^cfzo 13671  seqcseq 14019   sadd csad 16439   smul csmu 16440
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2707  ax-rep 5249  ax-sep 5266  ax-nul 5276  ax-pow 5335  ax-pr 5402  ax-un 7729  ax-inf2 9655  ax-cnex 11185  ax-resscn 11186  ax-1cn 11187  ax-icn 11188  ax-addcl 11189  ax-addrcl 11190  ax-mulcl 11191  ax-mulrcl 11192  ax-mulcom 11193  ax-addass 11194  ax-mulass 11195  ax-distr 11196  ax-i2m1 11197  ax-1ne0 11198  ax-1rid 11199  ax-rnegex 11200  ax-rrecex 11201  ax-cnre 11202  ax-pre-lttri 11203  ax-pre-lttrn 11204  ax-pre-ltadd 11205  ax-pre-mulgt0 11206  ax-pre-sup 11207
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-xor 1512  df-tru 1543  df-fal 1553  df-had 1594  df-cad 1607  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2539  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2809  df-nfc 2885  df-ne 2933  df-nel 3037  df-ral 3052  df-rex 3061  df-rmo 3359  df-reu 3360  df-rab 3416  df-v 3461  df-sbc 3766  df-csb 3875  df-dif 3929  df-un 3931  df-in 3933  df-ss 3943  df-pss 3946  df-nul 4309  df-if 4501  df-pw 4577  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-int 4923  df-iun 4969  df-disj 5087  df-br 5120  df-opab 5182  df-mpt 5202  df-tr 5230  df-id 5548  df-eprel 5553  df-po 5561  df-so 5562  df-fr 5606  df-se 5607  df-we 5608  df-xp 5660  df-rel 5661  df-cnv 5662  df-co 5663  df-dm 5664  df-rn 5665  df-res 5666  df-ima 5667  df-pred 6290  df-ord 6355  df-on 6356  df-lim 6357  df-suc 6358  df-iota 6484  df-fun 6533  df-fn 6534  df-f 6535  df-f1 6536  df-fo 6537  df-f1o 6538  df-fv 6539  df-isom 6540  df-riota 7362  df-ov 7408  df-oprab 7409  df-mpo 7410  df-om 7862  df-1st 7988  df-2nd 7989  df-frecs 8280  df-wrecs 8311  df-recs 8385  df-rdg 8424  df-1o 8480  df-2o 8481  df-oadd 8484  df-er 8719  df-map 8842  df-pm 8843  df-en 8960  df-dom 8961  df-sdom 8962  df-fin 8963  df-sup 9454  df-inf 9455  df-oi 9524  df-dju 9915  df-card 9953  df-pnf 11271  df-mnf 11272  df-xr 11273  df-ltxr 11274  df-le 11275  df-sub 11468  df-neg 11469  df-div 11895  df-nn 12241  df-2 12303  df-3 12304  df-n0 12502  df-xnn0 12575  df-z 12589  df-uz 12853  df-rp 13009  df-fz 13525  df-fzo 13672  df-fl 13809  df-mod 13887  df-seq 14020  df-exp 14080  df-hash 14349  df-cj 15118  df-re 15119  df-im 15120  df-sqrt 15254  df-abs 15255  df-clim 15504  df-sum 15703  df-dvds 16273  df-bits 16441  df-sad 16470  df-smu 16495
This theorem is referenced by:  smueq  16510
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