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Theorem smueqlem 16572
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 486 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝐴 ⊆ ℕ0)
3 smueq.b . . . . . . . 8 (𝜑𝐵 ⊆ ℕ0)
43adantr 486 . . . . . . 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 13711 . . . . . . . . 9 (𝑘 ∈ (0..^𝑁) → 𝑘 ∈ (ℤ‘0))
76adantl 487 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑘 ∈ (ℤ‘0))
8 nn0uz 12918 . . . . . . . 8 0 = (ℤ‘0)
97, 8eleqtrrdi 2876 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑘 ∈ ℕ0)
109nn0zd 12633 . . . . . . . . 9 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑘 ∈ ℤ)
1110peano2zd 12721 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 + 1) ∈ ℤ)
12 smueq.n . . . . . . . . . 10 (𝜑𝑁 ∈ ℕ0)
1312adantr 486 . . . . . . . . 9 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑁 ∈ ℕ0)
1413nn0zd 12633 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑁 ∈ ℤ)
15 elfzolt2 13716 . . . . . . . . . 10 (𝑘 ∈ (0..^𝑁) → 𝑘 < 𝑁)
1615adantl 487 . . . . . . . . 9 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑘 < 𝑁)
17 nn0ltp1le 12672 . . . . . . . . . 10 ((𝑘 ∈ ℕ0𝑁 ∈ ℕ0) → (𝑘 < 𝑁 ↔ (𝑘 + 1) ≤ 𝑁))
189, 13, 17syl2anc 596 . . . . . . . . 9 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 < 𝑁 ↔ (𝑘 + 1) ≤ 𝑁))
1916, 18mpbid 235 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 + 1) ≤ 𝑁)
20 eluz2 12886 . . . . . . . 8 (𝑁 ∈ (ℤ‘(𝑘 + 1)) ↔ ((𝑘 + 1) ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ (𝑘 + 1) ≤ 𝑁))
2111, 14, 19, 20syl3anbrc 1362 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → 𝑁 ∈ (ℤ‘(𝑘 + 1)))
222, 4, 5, 9, 21smuval2 16564 . . . . . 6 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ (𝐴 smul 𝐵) ↔ 𝑘 ∈ (𝑃𝑁)))
2312, 8eleqtrdi 2875 . . . . . . . . . . 11 (𝜑𝑁 ∈ (ℤ‘0))
24 eluzfz2b 13579 . . . . . . . . . . 11 (𝑁 ∈ (ℤ‘0) ↔ 𝑁 ∈ (0...𝑁))
2523, 24sylib 221 . . . . . . . . . 10 (𝜑𝑁 ∈ (0...𝑁))
26 fveq2 6885 . . . . . . . . . . . . . 14 (𝑥 = 0 → (𝑃𝑥) = (𝑃‘0))
2726ineq1d 4172 . . . . . . . . . . . . 13 (𝑥 = 0 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑃‘0) ∩ (0..^𝑁)))
28 fveq2 6885 . . . . . . . . . . . . . 14 (𝑥 = 0 → (𝑄𝑥) = (𝑄‘0))
2928ineq1d 4172 . . . . . . . . . . . . 13 (𝑥 = 0 → ((𝑄𝑥) ∩ (0..^𝑁)) = ((𝑄‘0) ∩ (0..^𝑁)))
3027, 29eqeq12d 2781 . . . . . . . . . . . 12 (𝑥 = 0 → (((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁)) ↔ ((𝑃‘0) ∩ (0..^𝑁)) = ((𝑄‘0) ∩ (0..^𝑁))))
3130imbi2d 343 . . . . . . . . . . 11 (𝑥 = 0 → ((𝜑 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁))) ↔ (𝜑 → ((𝑃‘0) ∩ (0..^𝑁)) = ((𝑄‘0) ∩ (0..^𝑁)))))
32 fveq2 6885 . . . . . . . . . . . . . 14 (𝑥 = 𝑖 → (𝑃𝑥) = (𝑃𝑖))
3332ineq1d 4172 . . . . . . . . . . . . 13 (𝑥 = 𝑖 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑃𝑖) ∩ (0..^𝑁)))
34 fveq2 6885 . . . . . . . . . . . . . 14 (𝑥 = 𝑖 → (𝑄𝑥) = (𝑄𝑖))
3534ineq1d 4172 . . . . . . . . . . . . 13 (𝑥 = 𝑖 → ((𝑄𝑥) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)))
3633, 35eqeq12d 2781 . . . . . . . . . . . 12 (𝑥 = 𝑖 → (((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁)) ↔ ((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁))))
3736imbi2d 343 . . . . . . . . . . 11 (𝑥 = 𝑖 → ((𝜑 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁))) ↔ (𝜑 → ((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)))))
38 fveq2 6885 . . . . . . . . . . . . . 14 (𝑥 = (𝑖 + 1) → (𝑃𝑥) = (𝑃‘(𝑖 + 1)))
3938ineq1d 4172 . . . . . . . . . . . . 13 (𝑥 = (𝑖 + 1) → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)))
40 fveq2 6885 . . . . . . . . . . . . . 14 (𝑥 = (𝑖 + 1) → (𝑄𝑥) = (𝑄‘(𝑖 + 1)))
4140ineq1d 4172 . . . . . . . . . . . . 13 (𝑥 = (𝑖 + 1) → ((𝑄𝑥) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)))
4239, 41eqeq12d 2781 . . . . . . . . . . . 12 (𝑥 = (𝑖 + 1) → (((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁)) ↔ ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁))))
4342imbi2d 343 . . . . . . . . . . 11 (𝑥 = (𝑖 + 1) → ((𝜑 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁))) ↔ (𝜑 → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)))))
44 fveq2 6885 . . . . . . . . . . . . . 14 (𝑥 = 𝑁 → (𝑃𝑥) = (𝑃𝑁))
4544ineq1d 4172 . . . . . . . . . . . . 13 (𝑥 = 𝑁 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑃𝑁) ∩ (0..^𝑁)))
46 fveq2 6885 . . . . . . . . . . . . . 14 (𝑥 = 𝑁 → (𝑄𝑥) = (𝑄𝑁))
4746ineq1d 4172 . . . . . . . . . . . . 13 (𝑥 = 𝑁 → ((𝑄𝑥) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁)))
4845, 47eqeq12d 2781 . . . . . . . . . . . 12 (𝑥 = 𝑁 → (((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁)) ↔ ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁))))
4948imbi2d 343 . . . . . . . . . . 11 (𝑥 = 𝑁 → ((𝜑 → ((𝑃𝑥) ∩ (0..^𝑁)) = ((𝑄𝑥) ∩ (0..^𝑁))) ↔ (𝜑 → ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁)))))
501, 3, 5smup0 16561 . . . . . . . . . . . . . 14 (𝜑 → (𝑃‘0) = ∅)
51 inss1 4189 . . . . . . . . . . . . . . . 16 (𝐵 ∩ (0..^𝑁)) ⊆ 𝐵
5251, 3sstrid 3949 . . . . . . . . . . . . . . 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 16561 . . . . . . . . . . . . . 14 (𝜑 → (𝑄‘0) = ∅)
5550, 54eqtr4d 2803 . . . . . . . . . . . . 13 (𝜑 → (𝑃‘0) = (𝑄‘0))
5655ineq1d 4172 . . . . . . . . . . . 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 7426 . . . . . . . . . . . . . . 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 4172 . . . . . . . . . . . . . 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 486 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → 𝐴 ⊆ ℕ0)
613adantr 486 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → 𝐵 ⊆ ℕ0)
62 elfzonn0 13755 . . . . . . . . . . . . . . . . . . 19 (𝑖 ∈ (0..^𝑁) → 𝑖 ∈ ℕ0)
6362adantl 487 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → 𝑖 ∈ ℕ0)
6460, 61, 5, 63smupp1 16562 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑃‘(𝑖 + 1)) = ((𝑃𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)}))
6564ineq1d 4172 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑁)) → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = (((𝑃𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)}) ∩ (0..^𝑁)))
661, 3, 5smupf 16560 . . . . . . . . . . . . . . . . . . 19 (𝜑𝑃:ℕ0⟶𝒫 ℕ0)
67 ffvelcdm 7080 . . . . . . . . . . . . . . . . . . 19 ((𝑃:ℕ0⟶𝒫 ℕ0𝑖 ∈ ℕ0) → (𝑃𝑖) ∈ 𝒫 ℕ0)
6866, 62, 67syl2an 608 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑃𝑖) ∈ 𝒫 ℕ0)
6968elpwid 4573 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑃𝑖) ⊆ ℕ0)
70 ssrab2 4035 . . . . . . . . . . . . . . . . . 18 {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ⊆ ℕ0
7170a1i 11 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ⊆ ℕ0)
7212adantr 486 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → 𝑁 ∈ ℕ0)
7369, 71, 72sadeq 16554 . . . . . . . . . . . . . . . 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 2800 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑁)) → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((((𝑃𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)))
7552adantr 486 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝐵 ∩ (0..^𝑁)) ⊆ ℕ0)
7660, 75, 53, 63smupp1 16562 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑄‘(𝑖 + 1)) = ((𝑄𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))}))
7776ineq1d 4172 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑁)) → ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)) = (((𝑄𝑖) sadd {𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))}) ∩ (0..^𝑁)))
781, 52, 53smupf 16560 . . . . . . . . . . . . . . . . . . 19 (𝜑𝑄:ℕ0⟶𝒫 ℕ0)
79 ffvelcdm 7080 . . . . . . . . . . . . . . . . . . 19 ((𝑄:ℕ0⟶𝒫 ℕ0𝑖 ∈ ℕ0) → (𝑄𝑖) ∈ 𝒫 ℕ0)
8078, 62, 79syl2an 608 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑄𝑖) ∈ 𝒫 ℕ0)
8180elpwid 4573 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑁)) → (𝑄𝑖) ⊆ ℕ0)
82 ssrab2 4035 . . . . . . . . . . . . . . . . . 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 16554 . . . . . . . . . . . . . . . 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 4155 . . . . . . . . . . . . . . . . . . . . 21 (𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) → 𝑛 ∈ (0..^𝑁))
8661adantr 486 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝐵 ⊆ ℕ0)
8786sseld 3937 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ 𝐵 → (𝑛𝑖) ∈ ℕ0))
88 elfzo0 13748 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑛 ∈ (0..^𝑁) ↔ (𝑛 ∈ ℕ0𝑁 ∈ ℕ ∧ 𝑛 < 𝑁))
8988simp2bi 1164 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝑛 ∈ (0..^𝑁) → 𝑁 ∈ ℕ)
9089adantl 487 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑁 ∈ ℕ)
91 elfzonn0 13755 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (𝑛 ∈ (0..^𝑁) → 𝑛 ∈ ℕ0)
9291adantl 487 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑛 ∈ ℕ0)
9392nn0red 12583 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑛 ∈ ℝ)
9463adantr 486 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑖 ∈ ℕ0)
9594nn0red 12583 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑖 ∈ ℝ)
9693, 95resubcld 11659 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (𝑛𝑖) ∈ ℝ)
9790nnred 12265 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑁 ∈ ℝ)
9894nn0ge0d 12585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 0 ≤ 𝑖)
9993, 95subge02d 11823 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (0 ≤ 𝑖 ↔ (𝑛𝑖) ≤ 𝑛))
10098, 99mpbid 235 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (𝑛𝑖) ≤ 𝑛)
101 elfzolt2 13716 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑛 ∈ (0..^𝑁) → 𝑛 < 𝑁)
102101adantl 487 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → 𝑛 < 𝑁)
10396, 93, 97, 100, 102lelttrd 11385 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (𝑛𝑖) < 𝑁)
10490, 103jca 521 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → (𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁))
105 elfzo0 13748 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝑛𝑖) ∈ (0..^𝑁) ↔ ((𝑛𝑖) ∈ ℕ0𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁))
106 3anass 1111 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝑛𝑖) ∈ ℕ0𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁) ↔ ((𝑛𝑖) ∈ ℕ0 ∧ (𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁)))
107105, 106bitri 278 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑛𝑖) ∈ (0..^𝑁) ↔ ((𝑛𝑖) ∈ ℕ0 ∧ (𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁)))
108107baib 545 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑛𝑖) ∈ ℕ0 → ((𝑛𝑖) ∈ (0..^𝑁) ↔ (𝑁 ∈ ℕ ∧ (𝑛𝑖) < 𝑁)))
109104, 108syl5ibrcom 250 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ ℕ0 → (𝑛𝑖) ∈ (0..^𝑁)))
11087, 109syld 48 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ 𝐵 → (𝑛𝑖) ∈ (0..^𝑁)))
111110pm4.71rd 572 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ 𝐵 ↔ ((𝑛𝑖) ∈ (0..^𝑁) ∧ (𝑛𝑖) ∈ 𝐵)))
112 ancom 466 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝑛𝑖) ∈ (0..^𝑁) ∧ (𝑛𝑖) ∈ 𝐵) ↔ ((𝑛𝑖) ∈ 𝐵 ∧ (𝑛𝑖) ∈ (0..^𝑁)))
113 elin 3922 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)) ↔ ((𝑛𝑖) ∈ 𝐵 ∧ (𝑛𝑖) ∈ (0..^𝑁)))
114112, 113bitr4i 281 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝑛𝑖) ∈ (0..^𝑁) ∧ (𝑛𝑖) ∈ 𝐵) ↔ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))
115111, 114bitr2di 291 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)) ↔ (𝑛𝑖) ∈ 𝐵))
116115anbi2d 642 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (0..^𝑁)) → ((𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁))) ↔ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)))
11785, 116sylan2 605 . . . . . . . . . . . . . . . . . . . 20 (((𝜑𝑖 ∈ (0..^𝑁)) ∧ 𝑛 ∈ (ℕ0 ∩ (0..^𝑁))) → ((𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁))) ↔ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)))
118117rabbidva 3424 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑖 ∈ (0..^𝑁)) → {𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} = {𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)})
119 inrab2 4270 . . . . . . . . . . . . . . . . . . 19 ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ∩ (0..^𝑁)) = {𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))}
120 inrab2 4270 . . . . . . . . . . . . . . . . . . 19 ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁)) = {𝑛 ∈ (ℕ0 ∩ (0..^𝑁)) ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)}
121118, 119, 1203eqtr4g 2825 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0..^𝑁)) → ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ (𝐵 ∩ (0..^𝑁)))} ∩ (0..^𝑁)) = ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁)))
122121oveq2d 7435 . . . . . . . . . . . . . . . . 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 4172 . . . . . . . . . . . . . . . 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 2804 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑁)) → ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((((𝑄𝑖) ∩ (0..^𝑁)) sadd ({𝑛 ∈ ℕ0 ∣ (𝑖𝐴 ∧ (𝑛𝑖) ∈ 𝐵)} ∩ (0..^𝑁))) ∩ (0..^𝑁)))
12574, 124eqeq12d 2781 . . . . . . . . . . . . . 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 249 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0..^𝑁)) → (((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)) → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁))))
127126expcom 419 . . . . . . . . . . . 12 (𝑖 ∈ (0..^𝑁) → (𝜑 → (((𝑃𝑖) ∩ (0..^𝑁)) = ((𝑄𝑖) ∩ (0..^𝑁)) → ((𝑃‘(𝑖 + 1)) ∩ (0..^𝑁)) = ((𝑄‘(𝑖 + 1)) ∩ (0..^𝑁)))))
128127a2d 30 . . . . . . . . . . 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 13836 . . . . . . . . . 10 (𝑁 ∈ (0...𝑁) → (𝜑 → ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁))))
13025, 129mpcom 39 . . . . . . . . 9 (𝜑 → ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁)))
131130adantr 486 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → ((𝑃𝑁) ∩ (0..^𝑁)) = ((𝑄𝑁) ∩ (0..^𝑁)))
132131eleq2d 2851 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ ((𝑃𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ ((𝑄𝑁) ∩ (0..^𝑁))))
133 elin 3922 . . . . . . . . 9 (𝑘 ∈ ((𝑃𝑁) ∩ (0..^𝑁)) ↔ (𝑘 ∈ (𝑃𝑁) ∧ 𝑘 ∈ (0..^𝑁)))
134133rbaib 548 . . . . . . . 8 (𝑘 ∈ (0..^𝑁) → (𝑘 ∈ ((𝑃𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (𝑃𝑁)))
135134adantl 487 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ ((𝑃𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (𝑃𝑁)))
136 elin 3922 . . . . . . . . 9 (𝑘 ∈ ((𝑄𝑁) ∩ (0..^𝑁)) ↔ (𝑘 ∈ (𝑄𝑁) ∧ 𝑘 ∈ (0..^𝑁)))
137136rbaib 548 . . . . . . . 8 (𝑘 ∈ (0..^𝑁) → (𝑘 ∈ ((𝑄𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (𝑄𝑁)))
138137adantl 487 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ ((𝑄𝑁) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (𝑄𝑁)))
139132, 135, 1383bitr3d 312 . . . . . 6 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ (𝑃𝑁) ↔ 𝑘 ∈ (𝑄𝑁)))
14052adantr 486 . . . . . . . 8 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝐵 ∩ (0..^𝑁)) ⊆ ℕ0)
1412, 140, 53, 13smupval 16570 . . . . . . 7 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑄𝑁) = ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))))
142141eleq2d 2851 . . . . . 6 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ (𝑄𝑁) ↔ 𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁)))))
14322, 139, 1423bitrd 308 . . . . 5 ((𝜑𝑘 ∈ (0..^𝑁)) → (𝑘 ∈ (𝐴 smul 𝐵) ↔ 𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁)))))
144143ex 418 . . . 4 (𝜑 → (𝑘 ∈ (0..^𝑁) → (𝑘 ∈ (𝐴 smul 𝐵) ↔ 𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))))))
145144pm5.32rd 589 . . 3 (𝜑 → ((𝑘 ∈ (𝐴 smul 𝐵) ∧ 𝑘 ∈ (0..^𝑁)) ↔ (𝑘 ∈ ((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∧ 𝑘 ∈ (0..^𝑁))))
146 elin 3922 . . 3 (𝑘 ∈ ((𝐴 smul 𝐵) ∩ (0..^𝑁)) ↔ (𝑘 ∈ (𝐴 smul 𝐵) ∧ 𝑘 ∈ (0..^𝑁)))
147 elin 3922 . . 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 317 . 2 (𝜑 → (𝑘 ∈ ((𝐴 smul 𝐵) ∩ (0..^𝑁)) ↔ 𝑘 ∈ (((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∩ (0..^𝑁))))
149148eqrdv 2763 1 (𝜑 → ((𝐴 smul 𝐵) ∩ (0..^𝑁)) = (((𝐴 ∩ (0..^𝑁)) smul (𝐵 ∩ (0..^𝑁))) ∩ (0..^𝑁)))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wb 209  wa 401  w3a 1103   = wceq 1570  wcel 2146  {crab 3418  cin 3905  wss 3906  c0 4286  ifcif 4489  𝒫 cpw 4564   class class class wbr 5111  cmpt 5194  wf 6536  cfv 6540  (class class class)co 7419  cmpo 7421  0cc0 11117  1c1 11118   + caddc 11120   < clt 11260  cle 11261  cmin 11458  cn 12250  0cn0 12521  cz 12608  cuz 12880  ...cfz 13553  ..^cfzo 13701  seqcseq 14057   sadd csad 16502   smul csmu 16503
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2737  ax-rep 5240  ax-sep 5259  ax-nul 5271  ax-pow 5338  ax-pr 5406  ax-un 7742  ax-inf2 9617  ax-cnex 11173  ax-resscn 11174  ax-1cn 11175  ax-icn 11176  ax-addcl 11177  ax-addrcl 11178  ax-mulcl 11179  ax-mulrcl 11180  ax-mulcom 11181  ax-addass 11182  ax-mulass 11183  ax-distr 11184  ax-i2m1 11185  ax-1ne0 11186  ax-1rid 11187  ax-rnegex 11188  ax-rrecex 11189  ax-cnre 11190  ax-pre-lttri 11191  ax-pre-lttrn 11192  ax-pre-ltadd 11193  ax-pre-mulgt0 11194  ax-pre-sup 11195
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-xor 1542  df-tru 1573  df-fal 1583  df-had 1624  df-cad 1640  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2569  df-eu 2599  df-clab 2744  df-cleq 2757  df-clel 2840  df-nfc 2914  df-ne 2961  df-nel 3067  df-ral 3082  df-rex 3092  df-rmo 3371  df-reu 3372  df-rab 3419  df-v 3459  df-sbc 3747  df-csb 3855  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-pss 3926  df-nul 4287  df-if 4490  df-pw 4566  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4875  df-int 4915  df-iun 4960  df-disj 5079  df-br 5112  df-opab 5176  df-mpt 5195  df-tr 5221  df-id 5558  df-eprel 5563  df-po 5571  df-so 5572  df-fr 5616  df-se 5617  df-we 5618  df-xp 5669  df-rel 5670  df-cnv 5671  df-co 5672  df-dm 5673  df-rn 5674  df-res 5675  df-ima 5676  df-pred 6306  df-ord 6367  df-on 6368  df-lim 6369  df-suc 6370  df-iota 6496  df-fun 6542  df-fn 6543  df-f 6544  df-f1 6545  df-fo 6546  df-f1o 6547  df-fv 6548  df-isom 6549  df-riota 7376  df-ov 7422  df-oprab 7423  df-mpo 7424  df-om 7869  df-1st 7992  df-2nd 7993  df-frecs 8284  df-wrecs 8315  df-recs 8364  df-rdg 8403  df-1o 8459  df-2o 8460  df-oadd 8463  df-er 8700  df-map 8832  df-pm 8833  df-en 8950  df-dom 8951  df-sdom 8952  df-fin 8953  df-sup 9409  df-inf 9410  df-oi 9479  df-dju 9903  df-card 9941  df-pnf 11262  df-mnf 11263  df-xr 11264  df-ltxr 11265  df-le 11266  df-sub 11460  df-neg 11461  df-div 11889  df-nn 12251  df-2 12320  df-3 12321  df-n0 12522  df-xnn0 12595  df-z 12609  df-uz 12881  df-rp 13035  df-fz 13554  df-fzo 13702  df-fl 13845  df-mod 13923  df-seq 14058  df-exp 14118  df-hash 14387  df-cj 15176  df-re 15177  df-im 15178  df-sqrt 15312  df-abs 15313  df-clim 15565  df-sum 15764  df-dvds 16335  df-bits 16504  df-sad 16533  df-smu 16558
This theorem is used by:  smueq  16573
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