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Theorem isomenndlem 40051
Description: 𝑂 is sub-additive w.r.t. countable indexed union, implies that 𝑂 is sub-additive w.r.t. countable union. Thus, the definition of Outer Measure can be given using an indexed union. Definition 113A of [Fremlin1] p. 19 . (Contributed by Glauco Siliprandi, 11-Oct-2020.)
Hypotheses
Ref Expression
isomenndlem.o (𝜑𝑂:𝒫 𝑋⟶(0[,]+∞))
isomenndlem.o0 (𝜑 → (𝑂‘∅) = 0)
isomenndlem.y (𝜑𝑌 ⊆ 𝒫 𝑋)
isomenndlem.subadd ((𝜑𝑎:ℕ⟶𝒫 𝑋) → (𝑂 𝑛 ∈ ℕ (𝑎𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝑎𝑛)))))
isomenndlem.b (𝜑𝐵 ⊆ ℕ)
isomenndlem.f (𝜑𝐹:𝐵1-1-onto𝑌)
isomenndlem.a 𝐴 = (𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))
Assertion
Ref Expression
isomenndlem (𝜑 → (𝑂 𝑌) ≤ (Σ^‘(𝑂𝑌)))
Distinct variable groups:   𝐴,𝑎,𝑛   𝐵,𝑛   𝑛,𝐹   𝑂,𝑎,𝑛   𝑋,𝑎   𝑛,𝑌   𝜑,𝑎,𝑛
Allowed substitution hints:   𝐵(𝑎)   𝐹(𝑎)   𝑋(𝑛)   𝑌(𝑎)

Proof of Theorem isomenndlem
Dummy variable 𝑦 is distinct from all other variables.
StepHypRef Expression
1 id 22 . . 3 (𝜑𝜑)
2 iftrue 4064 . . . . . . . . 9 (𝑛𝐵 → if(𝑛𝐵, (𝐹𝑛), ∅) = (𝐹𝑛))
32adantl 482 . . . . . . . 8 ((𝜑𝑛𝐵) → if(𝑛𝐵, (𝐹𝑛), ∅) = (𝐹𝑛))
4 isomenndlem.f . . . . . . . . . . 11 (𝜑𝐹:𝐵1-1-onto𝑌)
5 f1of 6094 . . . . . . . . . . 11 (𝐹:𝐵1-1-onto𝑌𝐹:𝐵𝑌)
64, 5syl 17 . . . . . . . . . 10 (𝜑𝐹:𝐵𝑌)
7 ssun1 3754 . . . . . . . . . . 11 𝑌 ⊆ (𝑌 ∪ {∅})
87a1i 11 . . . . . . . . . 10 (𝜑𝑌 ⊆ (𝑌 ∪ {∅}))
96, 8fssd 6014 . . . . . . . . 9 (𝜑𝐹:𝐵⟶(𝑌 ∪ {∅}))
109ffvelrnda 6315 . . . . . . . 8 ((𝜑𝑛𝐵) → (𝐹𝑛) ∈ (𝑌 ∪ {∅}))
113, 10eqeltrd 2698 . . . . . . 7 ((𝜑𝑛𝐵) → if(𝑛𝐵, (𝐹𝑛), ∅) ∈ (𝑌 ∪ {∅}))
1211adantlr 750 . . . . . 6 (((𝜑𝑛 ∈ ℕ) ∧ 𝑛𝐵) → if(𝑛𝐵, (𝐹𝑛), ∅) ∈ (𝑌 ∪ {∅}))
13 iffalse 4067 . . . . . . . . 9 𝑛𝐵 → if(𝑛𝐵, (𝐹𝑛), ∅) = ∅)
1413adantl 482 . . . . . . . 8 ((𝜑 ∧ ¬ 𝑛𝐵) → if(𝑛𝐵, (𝐹𝑛), ∅) = ∅)
15 0ex 4750 . . . . . . . . . . 11 ∅ ∈ V
1615snid 4179 . . . . . . . . . 10 ∅ ∈ {∅}
17 elun2 3759 . . . . . . . . . 10 (∅ ∈ {∅} → ∅ ∈ (𝑌 ∪ {∅}))
1816, 17ax-mp 5 . . . . . . . . 9 ∅ ∈ (𝑌 ∪ {∅})
1918a1i 11 . . . . . . . 8 ((𝜑 ∧ ¬ 𝑛𝐵) → ∅ ∈ (𝑌 ∪ {∅}))
2014, 19eqeltrd 2698 . . . . . . 7 ((𝜑 ∧ ¬ 𝑛𝐵) → if(𝑛𝐵, (𝐹𝑛), ∅) ∈ (𝑌 ∪ {∅}))
2120adantlr 750 . . . . . 6 (((𝜑𝑛 ∈ ℕ) ∧ ¬ 𝑛𝐵) → if(𝑛𝐵, (𝐹𝑛), ∅) ∈ (𝑌 ∪ {∅}))
2212, 21pm2.61dan 831 . . . . 5 ((𝜑𝑛 ∈ ℕ) → if(𝑛𝐵, (𝐹𝑛), ∅) ∈ (𝑌 ∪ {∅}))
23 isomenndlem.a . . . . 5 𝐴 = (𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))
2422, 23fmptd 6340 . . . 4 (𝜑𝐴:ℕ⟶(𝑌 ∪ {∅}))
25 isomenndlem.y . . . . 5 (𝜑𝑌 ⊆ 𝒫 𝑋)
26 0elpw 4794 . . . . . . 7 ∅ ∈ 𝒫 𝑋
27 snssi 4308 . . . . . . 7 (∅ ∈ 𝒫 𝑋 → {∅} ⊆ 𝒫 𝑋)
2826, 27ax-mp 5 . . . . . 6 {∅} ⊆ 𝒫 𝑋
2928a1i 11 . . . . 5 (𝜑 → {∅} ⊆ 𝒫 𝑋)
3025, 29unssd 3767 . . . 4 (𝜑 → (𝑌 ∪ {∅}) ⊆ 𝒫 𝑋)
3124, 30fssd 6014 . . 3 (𝜑𝐴:ℕ⟶𝒫 𝑋)
32 nnex 10970 . . . . . 6 ℕ ∈ V
3332mptex 6440 . . . . 5 (𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅)) ∈ V
3423, 33eqeltri 2694 . . . 4 𝐴 ∈ V
35 feq1 5983 . . . . . 6 (𝑎 = 𝐴 → (𝑎:ℕ⟶𝒫 𝑋𝐴:ℕ⟶𝒫 𝑋))
3635anbi2d 739 . . . . 5 (𝑎 = 𝐴 → ((𝜑𝑎:ℕ⟶𝒫 𝑋) ↔ (𝜑𝐴:ℕ⟶𝒫 𝑋)))
37 fveq1 6147 . . . . . . . 8 (𝑎 = 𝐴 → (𝑎𝑛) = (𝐴𝑛))
3837iuneq2d 4513 . . . . . . 7 (𝑎 = 𝐴 𝑛 ∈ ℕ (𝑎𝑛) = 𝑛 ∈ ℕ (𝐴𝑛))
3938fveq2d 6152 . . . . . 6 (𝑎 = 𝐴 → (𝑂 𝑛 ∈ ℕ (𝑎𝑛)) = (𝑂 𝑛 ∈ ℕ (𝐴𝑛)))
40 simpl 473 . . . . . . . . . 10 ((𝑎 = 𝐴𝑛 ∈ ℕ) → 𝑎 = 𝐴)
4140fveq1d 6150 . . . . . . . . 9 ((𝑎 = 𝐴𝑛 ∈ ℕ) → (𝑎𝑛) = (𝐴𝑛))
4241fveq2d 6152 . . . . . . . 8 ((𝑎 = 𝐴𝑛 ∈ ℕ) → (𝑂‘(𝑎𝑛)) = (𝑂‘(𝐴𝑛)))
4342mpteq2dva 4704 . . . . . . 7 (𝑎 = 𝐴 → (𝑛 ∈ ℕ ↦ (𝑂‘(𝑎𝑛))) = (𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛))))
4443fveq2d 6152 . . . . . 6 (𝑎 = 𝐴 → (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝑎𝑛)))) = (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛)))))
4539, 44breq12d 4626 . . . . 5 (𝑎 = 𝐴 → ((𝑂 𝑛 ∈ ℕ (𝑎𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝑎𝑛)))) ↔ (𝑂 𝑛 ∈ ℕ (𝐴𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛))))))
4636, 45imbi12d 334 . . . 4 (𝑎 = 𝐴 → (((𝜑𝑎:ℕ⟶𝒫 𝑋) → (𝑂 𝑛 ∈ ℕ (𝑎𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝑎𝑛))))) ↔ ((𝜑𝐴:ℕ⟶𝒫 𝑋) → (𝑂 𝑛 ∈ ℕ (𝐴𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛)))))))
47 isomenndlem.subadd . . . 4 ((𝜑𝑎:ℕ⟶𝒫 𝑋) → (𝑂 𝑛 ∈ ℕ (𝑎𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝑎𝑛)))))
4834, 46, 47vtocl 3245 . . 3 ((𝜑𝐴:ℕ⟶𝒫 𝑋) → (𝑂 𝑛 ∈ ℕ (𝐴𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛)))))
491, 31, 48syl2anc 692 . 2 (𝜑 → (𝑂 𝑛 ∈ ℕ (𝐴𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛)))))
506ad2antrr 761 . . . . . . . . . . 11 (((𝜑𝐵 = ℕ) ∧ 𝑛 ∈ ℕ) → 𝐹:𝐵𝑌)
51 simpr 477 . . . . . . . . . . . . 13 ((𝐵 = ℕ ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℕ)
52 id 22 . . . . . . . . . . . . . . 15 (𝐵 = ℕ → 𝐵 = ℕ)
5352eqcomd 2627 . . . . . . . . . . . . . 14 (𝐵 = ℕ → ℕ = 𝐵)
5453adantr 481 . . . . . . . . . . . . 13 ((𝐵 = ℕ ∧ 𝑛 ∈ ℕ) → ℕ = 𝐵)
5551, 54eleqtrd 2700 . . . . . . . . . . . 12 ((𝐵 = ℕ ∧ 𝑛 ∈ ℕ) → 𝑛𝐵)
5655adantll 749 . . . . . . . . . . 11 (((𝜑𝐵 = ℕ) ∧ 𝑛 ∈ ℕ) → 𝑛𝐵)
5750, 56ffvelrnd 6316 . . . . . . . . . 10 (((𝜑𝐵 = ℕ) ∧ 𝑛 ∈ ℕ) → (𝐹𝑛) ∈ 𝑌)
58 eqid 2621 . . . . . . . . . 10 (𝑛 ∈ ℕ ↦ (𝐹𝑛)) = (𝑛 ∈ ℕ ↦ (𝐹𝑛))
5957, 58fmptd 6340 . . . . . . . . 9 ((𝜑𝐵 = ℕ) → (𝑛 ∈ ℕ ↦ (𝐹𝑛)):ℕ⟶𝑌)
6023a1i 11 . . . . . . . . . . . 12 (𝐵 = ℕ → 𝐴 = (𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅)))
6155iftrued 4066 . . . . . . . . . . . . 13 ((𝐵 = ℕ ∧ 𝑛 ∈ ℕ) → if(𝑛𝐵, (𝐹𝑛), ∅) = (𝐹𝑛))
6261mpteq2dva 4704 . . . . . . . . . . . 12 (𝐵 = ℕ → (𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅)) = (𝑛 ∈ ℕ ↦ (𝐹𝑛)))
6360, 62eqtrd 2655 . . . . . . . . . . 11 (𝐵 = ℕ → 𝐴 = (𝑛 ∈ ℕ ↦ (𝐹𝑛)))
6463feq1d 5987 . . . . . . . . . 10 (𝐵 = ℕ → (𝐴:ℕ⟶𝑌 ↔ (𝑛 ∈ ℕ ↦ (𝐹𝑛)):ℕ⟶𝑌))
6564adantl 482 . . . . . . . . 9 ((𝜑𝐵 = ℕ) → (𝐴:ℕ⟶𝑌 ↔ (𝑛 ∈ ℕ ↦ (𝐹𝑛)):ℕ⟶𝑌))
6659, 65mpbird 247 . . . . . . . 8 ((𝜑𝐵 = ℕ) → 𝐴:ℕ⟶𝑌)
67 f1ofo 6101 . . . . . . . . . . . . . . . 16 (𝐹:𝐵1-1-onto𝑌𝐹:𝐵onto𝑌)
684, 67syl 17 . . . . . . . . . . . . . . 15 (𝜑𝐹:𝐵onto𝑌)
69 dffo3 6330 . . . . . . . . . . . . . . 15 (𝐹:𝐵onto𝑌 ↔ (𝐹:𝐵𝑌 ∧ ∀𝑦𝑌𝑛𝐵 𝑦 = (𝐹𝑛)))
7068, 69sylib 208 . . . . . . . . . . . . . 14 (𝜑 → (𝐹:𝐵𝑌 ∧ ∀𝑦𝑌𝑛𝐵 𝑦 = (𝐹𝑛)))
7170simprd 479 . . . . . . . . . . . . 13 (𝜑 → ∀𝑦𝑌𝑛𝐵 𝑦 = (𝐹𝑛))
7271adantr 481 . . . . . . . . . . . 12 ((𝜑𝑦𝑌) → ∀𝑦𝑌𝑛𝐵 𝑦 = (𝐹𝑛))
73 simpr 477 . . . . . . . . . . . 12 ((𝜑𝑦𝑌) → 𝑦𝑌)
74 rspa 2925 . . . . . . . . . . . 12 ((∀𝑦𝑌𝑛𝐵 𝑦 = (𝐹𝑛) ∧ 𝑦𝑌) → ∃𝑛𝐵 𝑦 = (𝐹𝑛))
7572, 73, 74syl2anc 692 . . . . . . . . . . 11 ((𝜑𝑦𝑌) → ∃𝑛𝐵 𝑦 = (𝐹𝑛))
7675adantlr 750 . . . . . . . . . 10 (((𝜑𝐵 = ℕ) ∧ 𝑦𝑌) → ∃𝑛𝐵 𝑦 = (𝐹𝑛))
77 nfv 1840 . . . . . . . . . . . 12 𝑛(𝜑𝐵 = ℕ)
78 nfre1 2999 . . . . . . . . . . . 12 𝑛𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)
79 simpr 477 . . . . . . . . . . . . . . . . 17 ((𝐵 = ℕ ∧ 𝑛𝐵) → 𝑛𝐵)
80 simpl 473 . . . . . . . . . . . . . . . . 17 ((𝐵 = ℕ ∧ 𝑛𝐵) → 𝐵 = ℕ)
8179, 80eleqtrd 2700 . . . . . . . . . . . . . . . 16 ((𝐵 = ℕ ∧ 𝑛𝐵) → 𝑛 ∈ ℕ)
8281adantll 749 . . . . . . . . . . . . . . 15 (((𝜑𝐵 = ℕ) ∧ 𝑛𝐵) → 𝑛 ∈ ℕ)
83823adant3 1079 . . . . . . . . . . . . . 14 (((𝜑𝐵 = ℕ) ∧ 𝑛𝐵𝑦 = (𝐹𝑛)) → 𝑛 ∈ ℕ)
8460fveq1d 6150 . . . . . . . . . . . . . . . . 17 (𝐵 = ℕ → (𝐴𝑛) = ((𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))‘𝑛))
85843ad2ant1 1080 . . . . . . . . . . . . . . . 16 ((𝐵 = ℕ ∧ 𝑛𝐵𝑦 = (𝐹𝑛)) → (𝐴𝑛) = ((𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))‘𝑛))
86 fvex 6158 . . . . . . . . . . . . . . . . . . . . 21 (𝐹𝑛) ∈ V
8786, 15ifex 4128 . . . . . . . . . . . . . . . . . . . 20 if(𝑛𝐵, (𝐹𝑛), ∅) ∈ V
8887a1i 11 . . . . . . . . . . . . . . . . . . 19 ((𝐵 = ℕ ∧ 𝑛𝐵) → if(𝑛𝐵, (𝐹𝑛), ∅) ∈ V)
89 eqid 2621 . . . . . . . . . . . . . . . . . . . 20 (𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅)) = (𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))
9089fvmpt2 6248 . . . . . . . . . . . . . . . . . . 19 ((𝑛 ∈ ℕ ∧ if(𝑛𝐵, (𝐹𝑛), ∅) ∈ V) → ((𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))‘𝑛) = if(𝑛𝐵, (𝐹𝑛), ∅))
9181, 88, 90syl2anc 692 . . . . . . . . . . . . . . . . . 18 ((𝐵 = ℕ ∧ 𝑛𝐵) → ((𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))‘𝑛) = if(𝑛𝐵, (𝐹𝑛), ∅))
922adantl 482 . . . . . . . . . . . . . . . . . 18 ((𝐵 = ℕ ∧ 𝑛𝐵) → if(𝑛𝐵, (𝐹𝑛), ∅) = (𝐹𝑛))
9391, 92eqtrd 2655 . . . . . . . . . . . . . . . . 17 ((𝐵 = ℕ ∧ 𝑛𝐵) → ((𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))‘𝑛) = (𝐹𝑛))
94933adant3 1079 . . . . . . . . . . . . . . . 16 ((𝐵 = ℕ ∧ 𝑛𝐵𝑦 = (𝐹𝑛)) → ((𝑛 ∈ ℕ ↦ if(𝑛𝐵, (𝐹𝑛), ∅))‘𝑛) = (𝐹𝑛))
95 id 22 . . . . . . . . . . . . . . . . . 18 (𝑦 = (𝐹𝑛) → 𝑦 = (𝐹𝑛))
9695eqcomd 2627 . . . . . . . . . . . . . . . . 17 (𝑦 = (𝐹𝑛) → (𝐹𝑛) = 𝑦)
97963ad2ant3 1082 . . . . . . . . . . . . . . . 16 ((𝐵 = ℕ ∧ 𝑛𝐵𝑦 = (𝐹𝑛)) → (𝐹𝑛) = 𝑦)
9885, 94, 973eqtrrd 2660 . . . . . . . . . . . . . . 15 ((𝐵 = ℕ ∧ 𝑛𝐵𝑦 = (𝐹𝑛)) → 𝑦 = (𝐴𝑛))
99983adant1l 1315 . . . . . . . . . . . . . 14 (((𝜑𝐵 = ℕ) ∧ 𝑛𝐵𝑦 = (𝐹𝑛)) → 𝑦 = (𝐴𝑛))
100 rspe 2997 . . . . . . . . . . . . . 14 ((𝑛 ∈ ℕ ∧ 𝑦 = (𝐴𝑛)) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
10183, 99, 100syl2anc 692 . . . . . . . . . . . . 13 (((𝜑𝐵 = ℕ) ∧ 𝑛𝐵𝑦 = (𝐹𝑛)) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
1021013exp 1261 . . . . . . . . . . . 12 ((𝜑𝐵 = ℕ) → (𝑛𝐵 → (𝑦 = (𝐹𝑛) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))))
10377, 78, 102rexlimd 3019 . . . . . . . . . . 11 ((𝜑𝐵 = ℕ) → (∃𝑛𝐵 𝑦 = (𝐹𝑛) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
104103adantr 481 . . . . . . . . . 10 (((𝜑𝐵 = ℕ) ∧ 𝑦𝑌) → (∃𝑛𝐵 𝑦 = (𝐹𝑛) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
10576, 104mpd 15 . . . . . . . . 9 (((𝜑𝐵 = ℕ) ∧ 𝑦𝑌) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
106105ralrimiva 2960 . . . . . . . 8 ((𝜑𝐵 = ℕ) → ∀𝑦𝑌𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
10766, 106jca 554 . . . . . . 7 ((𝜑𝐵 = ℕ) → (𝐴:ℕ⟶𝑌 ∧ ∀𝑦𝑌𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
108 dffo3 6330 . . . . . . 7 (𝐴:ℕ–onto𝑌 ↔ (𝐴:ℕ⟶𝑌 ∧ ∀𝑦𝑌𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
109107, 108sylibr 224 . . . . . 6 ((𝜑𝐵 = ℕ) → 𝐴:ℕ–onto𝑌)
110 founiiun 38834 . . . . . 6 (𝐴:ℕ–onto𝑌 𝑌 = 𝑛 ∈ ℕ (𝐴𝑛))
111109, 110syl 17 . . . . 5 ((𝜑𝐵 = ℕ) → 𝑌 = 𝑛 ∈ ℕ (𝐴𝑛))
112 uniun 4422 . . . . . . . 8 (𝑌 ∪ {∅}) = ( 𝑌 {∅})
11315unisn 4417 . . . . . . . . 9 {∅} = ∅
114113uneq2i 3742 . . . . . . . 8 ( 𝑌 {∅}) = ( 𝑌 ∪ ∅)
115 un0 3939 . . . . . . . 8 ( 𝑌 ∪ ∅) = 𝑌
116112, 114, 1153eqtrri 2648 . . . . . . 7 𝑌 = (𝑌 ∪ {∅})
117116a1i 11 . . . . . 6 ((𝜑 ∧ ¬ 𝐵 = ℕ) → 𝑌 = (𝑌 ∪ {∅}))
11824adantr 481 . . . . . . . . 9 ((𝜑 ∧ ¬ 𝐵 = ℕ) → 𝐴:ℕ⟶(𝑌 ∪ {∅}))
119 isomenndlem.b . . . . . . . . . . . . . . . . . 18 (𝜑𝐵 ⊆ ℕ)
120119adantr 481 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ ¬ 𝐵 = ℕ) → 𝐵 ⊆ ℕ)
12152necon3bi 2816 . . . . . . . . . . . . . . . . . 18 𝐵 = ℕ → 𝐵 ≠ ℕ)
122121adantl 482 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ ¬ 𝐵 = ℕ) → 𝐵 ≠ ℕ)
123120, 122jca 554 . . . . . . . . . . . . . . . 16 ((𝜑 ∧ ¬ 𝐵 = ℕ) → (𝐵 ⊆ ℕ ∧ 𝐵 ≠ ℕ))
124 df-pss 3571 . . . . . . . . . . . . . . . 16 (𝐵 ⊊ ℕ ↔ (𝐵 ⊆ ℕ ∧ 𝐵 ≠ ℕ))
125123, 124sylibr 224 . . . . . . . . . . . . . . 15 ((𝜑 ∧ ¬ 𝐵 = ℕ) → 𝐵 ⊊ ℕ)
126 pssnel 4011 . . . . . . . . . . . . . . 15 (𝐵 ⊊ ℕ → ∃𝑛(𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵))
127125, 126syl 17 . . . . . . . . . . . . . 14 ((𝜑 ∧ ¬ 𝐵 = ℕ) → ∃𝑛(𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵))
128127adantr 481 . . . . . . . . . . . . 13 (((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 = ∅) → ∃𝑛(𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵))
129 nfv 1840 . . . . . . . . . . . . . 14 𝑛((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 = ∅)
130 simprl 793 . . . . . . . . . . . . . . . . 17 (((𝜑𝑦 = ∅) ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → 𝑛 ∈ ℕ)
131 simprl 793 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → 𝑛 ∈ ℕ)
13287a1i 11 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → if(𝑛𝐵, (𝐹𝑛), ∅) ∈ V)
13323fvmpt2 6248 . . . . . . . . . . . . . . . . . . . 20 ((𝑛 ∈ ℕ ∧ if(𝑛𝐵, (𝐹𝑛), ∅) ∈ V) → (𝐴𝑛) = if(𝑛𝐵, (𝐹𝑛), ∅))
134131, 132, 133syl2anc 692 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → (𝐴𝑛) = if(𝑛𝐵, (𝐹𝑛), ∅))
135134adantlr 750 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑦 = ∅) ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → (𝐴𝑛) = if(𝑛𝐵, (𝐹𝑛), ∅))
13613ad2antll 764 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑦 = ∅) ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → if(𝑛𝐵, (𝐹𝑛), ∅) = ∅)
137 id 22 . . . . . . . . . . . . . . . . . . . 20 (𝑦 = ∅ → 𝑦 = ∅)
138137eqcomd 2627 . . . . . . . . . . . . . . . . . . 19 (𝑦 = ∅ → ∅ = 𝑦)
139138ad2antlr 762 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑦 = ∅) ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → ∅ = 𝑦)
140135, 136, 1393eqtrrd 2660 . . . . . . . . . . . . . . . . 17 (((𝜑𝑦 = ∅) ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → 𝑦 = (𝐴𝑛))
141130, 140, 100syl2anc 692 . . . . . . . . . . . . . . . 16 (((𝜑𝑦 = ∅) ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵)) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
142141ex 450 . . . . . . . . . . . . . . 15 ((𝜑𝑦 = ∅) → ((𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
143142adantlr 750 . . . . . . . . . . . . . 14 (((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 = ∅) → ((𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
144129, 78, 143exlimd 2085 . . . . . . . . . . . . 13 (((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 = ∅) → (∃𝑛(𝑛 ∈ ℕ ∧ ¬ 𝑛𝐵) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
145128, 144mpd 15 . . . . . . . . . . . 12 (((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 = ∅) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
146145adantlr 750 . . . . . . . . . . 11 ((((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 ∈ (𝑌 ∪ {∅})) ∧ 𝑦 = ∅) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
147 simplll 797 . . . . . . . . . . . 12 ((((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 ∈ (𝑌 ∪ {∅})) ∧ ¬ 𝑦 = ∅) → 𝜑)
148 simpl 473 . . . . . . . . . . . . . 14 ((𝑦 ∈ (𝑌 ∪ {∅}) ∧ ¬ 𝑦 = ∅) → 𝑦 ∈ (𝑌 ∪ {∅}))
149 elsni 4165 . . . . . . . . . . . . . . . 16 (𝑦 ∈ {∅} → 𝑦 = ∅)
150149con3i 150 . . . . . . . . . . . . . . 15 𝑦 = ∅ → ¬ 𝑦 ∈ {∅})
151150adantl 482 . . . . . . . . . . . . . 14 ((𝑦 ∈ (𝑌 ∪ {∅}) ∧ ¬ 𝑦 = ∅) → ¬ 𝑦 ∈ {∅})
152 elunnel2 38681 . . . . . . . . . . . . . 14 ((𝑦 ∈ (𝑌 ∪ {∅}) ∧ ¬ 𝑦 ∈ {∅}) → 𝑦𝑌)
153148, 151, 152syl2anc 692 . . . . . . . . . . . . 13 ((𝑦 ∈ (𝑌 ∪ {∅}) ∧ ¬ 𝑦 = ∅) → 𝑦𝑌)
154153adantll 749 . . . . . . . . . . . 12 ((((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 ∈ (𝑌 ∪ {∅})) ∧ ¬ 𝑦 = ∅) → 𝑦𝑌)
15568adantr 481 . . . . . . . . . . . . . 14 ((𝜑𝑦𝑌) → 𝐹:𝐵onto𝑌)
156 foelrni 6201 . . . . . . . . . . . . . 14 ((𝐹:𝐵onto𝑌𝑦𝑌) → ∃𝑛𝐵 (𝐹𝑛) = 𝑦)
157155, 73, 156syl2anc 692 . . . . . . . . . . . . 13 ((𝜑𝑦𝑌) → ∃𝑛𝐵 (𝐹𝑛) = 𝑦)
158 nfv 1840 . . . . . . . . . . . . . 14 𝑛(𝜑𝑦𝑌)
159119sselda 3583 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑛𝐵) → 𝑛 ∈ ℕ)
1601593adant3 1079 . . . . . . . . . . . . . . . . 17 ((𝜑𝑛𝐵 ∧ (𝐹𝑛) = 𝑦) → 𝑛 ∈ ℕ)
161159, 87, 133sylancl 693 . . . . . . . . . . . . . . . . . . . 20 ((𝜑𝑛𝐵) → (𝐴𝑛) = if(𝑛𝐵, (𝐹𝑛), ∅))
162161, 3eqtrd 2655 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑛𝐵) → (𝐴𝑛) = (𝐹𝑛))
1631623adant3 1079 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑛𝐵 ∧ (𝐹𝑛) = 𝑦) → (𝐴𝑛) = (𝐹𝑛))
164 simp3 1061 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑛𝐵 ∧ (𝐹𝑛) = 𝑦) → (𝐹𝑛) = 𝑦)
165163, 164eqtr2d 2656 . . . . . . . . . . . . . . . . 17 ((𝜑𝑛𝐵 ∧ (𝐹𝑛) = 𝑦) → 𝑦 = (𝐴𝑛))
166160, 165, 100syl2anc 692 . . . . . . . . . . . . . . . 16 ((𝜑𝑛𝐵 ∧ (𝐹𝑛) = 𝑦) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
1671663exp 1261 . . . . . . . . . . . . . . 15 (𝜑 → (𝑛𝐵 → ((𝐹𝑛) = 𝑦 → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))))
168167adantr 481 . . . . . . . . . . . . . 14 ((𝜑𝑦𝑌) → (𝑛𝐵 → ((𝐹𝑛) = 𝑦 → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))))
169158, 78, 168rexlimd 3019 . . . . . . . . . . . . 13 ((𝜑𝑦𝑌) → (∃𝑛𝐵 (𝐹𝑛) = 𝑦 → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
170157, 169mpd 15 . . . . . . . . . . . 12 ((𝜑𝑦𝑌) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
171147, 154, 170syl2anc 692 . . . . . . . . . . 11 ((((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 ∈ (𝑌 ∪ {∅})) ∧ ¬ 𝑦 = ∅) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
172146, 171pm2.61dan 831 . . . . . . . . . 10 (((𝜑 ∧ ¬ 𝐵 = ℕ) ∧ 𝑦 ∈ (𝑌 ∪ {∅})) → ∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
173172ralrimiva 2960 . . . . . . . . 9 ((𝜑 ∧ ¬ 𝐵 = ℕ) → ∀𝑦 ∈ (𝑌 ∪ {∅})∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛))
174118, 173jca 554 . . . . . . . 8 ((𝜑 ∧ ¬ 𝐵 = ℕ) → (𝐴:ℕ⟶(𝑌 ∪ {∅}) ∧ ∀𝑦 ∈ (𝑌 ∪ {∅})∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
175 dffo3 6330 . . . . . . . 8 (𝐴:ℕ–onto→(𝑌 ∪ {∅}) ↔ (𝐴:ℕ⟶(𝑌 ∪ {∅}) ∧ ∀𝑦 ∈ (𝑌 ∪ {∅})∃𝑛 ∈ ℕ 𝑦 = (𝐴𝑛)))
176174, 175sylibr 224 . . . . . . 7 ((𝜑 ∧ ¬ 𝐵 = ℕ) → 𝐴:ℕ–onto→(𝑌 ∪ {∅}))
177 founiiun 38834 . . . . . . 7 (𝐴:ℕ–onto→(𝑌 ∪ {∅}) → (𝑌 ∪ {∅}) = 𝑛 ∈ ℕ (𝐴𝑛))
178176, 177syl 17 . . . . . 6 ((𝜑 ∧ ¬ 𝐵 = ℕ) → (𝑌 ∪ {∅}) = 𝑛 ∈ ℕ (𝐴𝑛))
179117, 178eqtrd 2655 . . . . 5 ((𝜑 ∧ ¬ 𝐵 = ℕ) → 𝑌 = 𝑛 ∈ ℕ (𝐴𝑛))
180111, 179pm2.61dan 831 . . . 4 (𝜑 𝑌 = 𝑛 ∈ ℕ (𝐴𝑛))
181180fveq2d 6152 . . 3 (𝜑 → (𝑂 𝑌) = (𝑂 𝑛 ∈ ℕ (𝐴𝑛)))
182 uncom 3735 . . . . . . . . 9 ((ℕ ∖ 𝐵) ∪ 𝐵) = (𝐵 ∪ (ℕ ∖ 𝐵))
183182a1i 11 . . . . . . . 8 (𝜑 → ((ℕ ∖ 𝐵) ∪ 𝐵) = (𝐵 ∪ (ℕ ∖ 𝐵)))
184 undif 4021 . . . . . . . . 9 (𝐵 ⊆ ℕ ↔ (𝐵 ∪ (ℕ ∖ 𝐵)) = ℕ)
185119, 184sylib 208 . . . . . . . 8 (𝜑 → (𝐵 ∪ (ℕ ∖ 𝐵)) = ℕ)
186183, 185eqtrd 2655 . . . . . . 7 (𝜑 → ((ℕ ∖ 𝐵) ∪ 𝐵) = ℕ)
187186eqcomd 2627 . . . . . 6 (𝜑 → ℕ = ((ℕ ∖ 𝐵) ∪ 𝐵))
188187mpteq1d 4698 . . . . 5 (𝜑 → (𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛))) = (𝑛 ∈ ((ℕ ∖ 𝐵) ∪ 𝐵) ↦ (𝑂‘(𝐴𝑛))))
189188fveq2d 6152 . . . 4 (𝜑 → (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛)))) = (Σ^‘(𝑛 ∈ ((ℕ ∖ 𝐵) ∪ 𝐵) ↦ (𝑂‘(𝐴𝑛)))))
190 nfv 1840 . . . . 5 𝑛𝜑
191 difexg 4768 . . . . . . 7 (ℕ ∈ V → (ℕ ∖ 𝐵) ∈ V)
19232, 191ax-mp 5 . . . . . 6 (ℕ ∖ 𝐵) ∈ V
193192a1i 11 . . . . 5 (𝜑 → (ℕ ∖ 𝐵) ∈ V)
19432a1i 11 . . . . . 6 (𝜑 → ℕ ∈ V)
195194, 119ssexd 4765 . . . . 5 (𝜑𝐵 ∈ V)
196 incom 3783 . . . . . . 7 ((ℕ ∖ 𝐵) ∩ 𝐵) = (𝐵 ∩ (ℕ ∖ 𝐵))
197 disjdif 4012 . . . . . . 7 (𝐵 ∩ (ℕ ∖ 𝐵)) = ∅
198196, 197eqtri 2643 . . . . . 6 ((ℕ ∖ 𝐵) ∩ 𝐵) = ∅
199198a1i 11 . . . . 5 (𝜑 → ((ℕ ∖ 𝐵) ∩ 𝐵) = ∅)
200 simpl 473 . . . . . 6 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → 𝜑)
201 eldifi 3710 . . . . . . 7 (𝑛 ∈ (ℕ ∖ 𝐵) → 𝑛 ∈ ℕ)
202201adantl 482 . . . . . 6 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → 𝑛 ∈ ℕ)
203 isomenndlem.o . . . . . . . 8 (𝜑𝑂:𝒫 𝑋⟶(0[,]+∞))
204203adantr 481 . . . . . . 7 ((𝜑𝑛 ∈ ℕ) → 𝑂:𝒫 𝑋⟶(0[,]+∞))
20531ffvelrnda 6315 . . . . . . 7 ((𝜑𝑛 ∈ ℕ) → (𝐴𝑛) ∈ 𝒫 𝑋)
206204, 205ffvelrnd 6316 . . . . . 6 ((𝜑𝑛 ∈ ℕ) → (𝑂‘(𝐴𝑛)) ∈ (0[,]+∞))
207200, 202, 206syl2anc 692 . . . . 5 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → (𝑂‘(𝐴𝑛)) ∈ (0[,]+∞))
208159, 206syldan 487 . . . . 5 ((𝜑𝑛𝐵) → (𝑂‘(𝐴𝑛)) ∈ (0[,]+∞))
209190, 193, 195, 199, 207, 208sge0splitmpt 39935 . . . 4 (𝜑 → (Σ^‘(𝑛 ∈ ((ℕ ∖ 𝐵) ∪ 𝐵) ↦ (𝑂‘(𝐴𝑛)))) = ((Σ^‘(𝑛 ∈ (ℕ ∖ 𝐵) ↦ (𝑂‘(𝐴𝑛)))) +𝑒^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛))))))
210 eqid 2621 . . . . . . . 8 (𝑛𝐵 ↦ (𝑂‘(𝐴𝑛))) = (𝑛𝐵 ↦ (𝑂‘(𝐴𝑛)))
211208, 210fmptd 6340 . . . . . . 7 (𝜑 → (𝑛𝐵 ↦ (𝑂‘(𝐴𝑛))):𝐵⟶(0[,]+∞))
212195, 211sge0xrcl 39909 . . . . . 6 (𝜑 → (Σ^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛)))) ∈ ℝ*)
213212xaddid2d 38999 . . . . 5 (𝜑 → (0 +𝑒^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛))))) = (Σ^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛)))))
21487a1i 11 . . . . . . . . . . . . 13 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → if(𝑛𝐵, (𝐹𝑛), ∅) ∈ V)
215202, 214, 133syl2anc 692 . . . . . . . . . . . 12 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → (𝐴𝑛) = if(𝑛𝐵, (𝐹𝑛), ∅))
216 eldifn 3711 . . . . . . . . . . . . . 14 (𝑛 ∈ (ℕ ∖ 𝐵) → ¬ 𝑛𝐵)
217216adantl 482 . . . . . . . . . . . . 13 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → ¬ 𝑛𝐵)
218217iffalsed 4069 . . . . . . . . . . . 12 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → if(𝑛𝐵, (𝐹𝑛), ∅) = ∅)
219215, 218eqtrd 2655 . . . . . . . . . . 11 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → (𝐴𝑛) = ∅)
220219fveq2d 6152 . . . . . . . . . 10 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → (𝑂‘(𝐴𝑛)) = (𝑂‘∅))
221 isomenndlem.o0 . . . . . . . . . . 11 (𝜑 → (𝑂‘∅) = 0)
222200, 221syl 17 . . . . . . . . . 10 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → (𝑂‘∅) = 0)
223220, 222eqtrd 2655 . . . . . . . . 9 ((𝜑𝑛 ∈ (ℕ ∖ 𝐵)) → (𝑂‘(𝐴𝑛)) = 0)
224223mpteq2dva 4704 . . . . . . . 8 (𝜑 → (𝑛 ∈ (ℕ ∖ 𝐵) ↦ (𝑂‘(𝐴𝑛))) = (𝑛 ∈ (ℕ ∖ 𝐵) ↦ 0))
225224fveq2d 6152 . . . . . . 7 (𝜑 → (Σ^‘(𝑛 ∈ (ℕ ∖ 𝐵) ↦ (𝑂‘(𝐴𝑛)))) = (Σ^‘(𝑛 ∈ (ℕ ∖ 𝐵) ↦ 0)))
226190, 193sge0z 39899 . . . . . . 7 (𝜑 → (Σ^‘(𝑛 ∈ (ℕ ∖ 𝐵) ↦ 0)) = 0)
227225, 226eqtrd 2655 . . . . . 6 (𝜑 → (Σ^‘(𝑛 ∈ (ℕ ∖ 𝐵) ↦ (𝑂‘(𝐴𝑛)))) = 0)
228227oveq1d 6619 . . . . 5 (𝜑 → ((Σ^‘(𝑛 ∈ (ℕ ∖ 𝐵) ↦ (𝑂‘(𝐴𝑛)))) +𝑒^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛))))) = (0 +𝑒^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛))))))
229203, 25feqresmpt 6207 . . . . . . 7 (𝜑 → (𝑂𝑌) = (𝑦𝑌 ↦ (𝑂𝑦)))
230229fveq2d 6152 . . . . . 6 (𝜑 → (Σ^‘(𝑂𝑌)) = (Σ^‘(𝑦𝑌 ↦ (𝑂𝑦))))
231 nfv 1840 . . . . . . 7 𝑦𝜑
232 fveq2 6148 . . . . . . 7 (𝑦 = (𝐴𝑛) → (𝑂𝑦) = (𝑂‘(𝐴𝑛)))
233162eqcomd 2627 . . . . . . 7 ((𝜑𝑛𝐵) → (𝐹𝑛) = (𝐴𝑛))
234203adantr 481 . . . . . . . 8 ((𝜑𝑦𝑌) → 𝑂:𝒫 𝑋⟶(0[,]+∞))
23525sselda 3583 . . . . . . . 8 ((𝜑𝑦𝑌) → 𝑦 ∈ 𝒫 𝑋)
236234, 235ffvelrnd 6316 . . . . . . 7 ((𝜑𝑦𝑌) → (𝑂𝑦) ∈ (0[,]+∞))
237231, 190, 232, 195, 4, 233, 236sge0f1o 39906 . . . . . 6 (𝜑 → (Σ^‘(𝑦𝑌 ↦ (𝑂𝑦))) = (Σ^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛)))))
238 eqidd 2622 . . . . . 6 (𝜑 → (Σ^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛)))) = (Σ^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛)))))
239230, 237, 2383eqtrd 2659 . . . . 5 (𝜑 → (Σ^‘(𝑂𝑌)) = (Σ^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛)))))
240213, 228, 2393eqtr4d 2665 . . . 4 (𝜑 → ((Σ^‘(𝑛 ∈ (ℕ ∖ 𝐵) ↦ (𝑂‘(𝐴𝑛)))) +𝑒^‘(𝑛𝐵 ↦ (𝑂‘(𝐴𝑛))))) = (Σ^‘(𝑂𝑌)))
241189, 209, 2403eqtrrd 2660 . . 3 (𝜑 → (Σ^‘(𝑂𝑌)) = (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛)))))
242181, 241breq12d 4626 . 2 (𝜑 → ((𝑂 𝑌) ≤ (Σ^‘(𝑂𝑌)) ↔ (𝑂 𝑛 ∈ ℕ (𝐴𝑛)) ≤ (Σ^‘(𝑛 ∈ ℕ ↦ (𝑂‘(𝐴𝑛))))))
24349, 242mpbird 247 1 (𝜑 → (𝑂 𝑌) ≤ (Σ^‘(𝑂𝑌)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wa 384  w3a 1036   = wceq 1480  wex 1701  wcel 1987  wne 2790  wral 2907  wrex 2908  Vcvv 3186  cdif 3552  cun 3553  cin 3554  wss 3555  wpss 3556  c0 3891  ifcif 4058  𝒫 cpw 4130  {csn 4148   cuni 4402   ciun 4485   class class class wbr 4613  cmpt 4673  cres 5076  wf 5843  ontowfo 5845  1-1-ontowf1o 5846  cfv 5847  (class class class)co 6604  0cc0 9880  +∞cpnf 10015  cle 10019  cn 10964   +𝑒 cxad 11888  [,]cicc 12120  Σ^csumge0 39886
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 4731  ax-sep 4741  ax-nul 4749  ax-pow 4803  ax-pr 4867  ax-un 6902  ax-inf2 8482  ax-cnex 9936  ax-resscn 9937  ax-1cn 9938  ax-icn 9939  ax-addcl 9940  ax-addrcl 9941  ax-mulcl 9942  ax-mulrcl 9943  ax-mulcom 9944  ax-addass 9945  ax-mulass 9946  ax-distr 9947  ax-i2m1 9948  ax-1ne0 9949  ax-1rid 9950  ax-rnegex 9951  ax-rrecex 9952  ax-cnre 9953  ax-pre-lttri 9954  ax-pre-lttrn 9955  ax-pre-ltadd 9956  ax-pre-mulgt0 9957  ax-pre-sup 9958
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 3418  df-csb 3515  df-dif 3558  df-un 3560  df-in 3562  df-ss 3569  df-pss 3571  df-nul 3892  df-if 4059  df-pw 4132  df-sn 4149  df-pr 4151  df-tp 4153  df-op 4155  df-uni 4403  df-int 4441  df-iun 4487  df-br 4614  df-opab 4674  df-mpt 4675  df-tr 4713  df-eprel 4985  df-id 4989  df-po 4995  df-so 4996  df-fr 5033  df-se 5034  df-we 5035  df-xp 5080  df-rel 5081  df-cnv 5082  df-co 5083  df-dm 5084  df-rn 5085  df-res 5086  df-ima 5087  df-pred 5639  df-ord 5685  df-on 5686  df-lim 5687  df-suc 5688  df-iota 5810  df-fun 5849  df-fn 5850  df-f 5851  df-f1 5852  df-fo 5853  df-f1o 5854  df-fv 5855  df-isom 5856  df-riota 6565  df-ov 6607  df-oprab 6608  df-mpt2 6609  df-om 7013  df-1st 7113  df-2nd 7114  df-wrecs 7352  df-recs 7413  df-rdg 7451  df-1o 7505  df-oadd 7509  df-er 7687  df-en 7900  df-dom 7901  df-sdom 7902  df-fin 7903  df-sup 8292  df-oi 8359  df-card 8709  df-pnf 10020  df-mnf 10021  df-xr 10022  df-ltxr 10023  df-le 10024  df-sub 10212  df-neg 10213  df-div 10629  df-nn 10965  df-2 11023  df-3 11024  df-n0 11237  df-z 11322  df-uz 11632  df-rp 11777  df-xadd 11891  df-ico 12123  df-icc 12124  df-fz 12269  df-fzo 12407  df-seq 12742  df-exp 12801  df-hash 13058  df-cj 13773  df-re 13774  df-im 13775  df-sqrt 13909  df-abs 13910  df-clim 14153  df-sum 14351  df-sumge0 39887
This theorem is referenced by:  isomennd  40052
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