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Theorem elbigo 45785
Description: Properties of a function of order G(x). (Contributed by AV, 16-May-2020.)
Assertion
Ref Expression
elbigo (𝐹 ∈ (Ο‘𝐺) ↔ (𝐹 ∈ (ℝ ↑pm ℝ) ∧ 𝐺 ∈ (ℝ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦))))
Distinct variable groups:   𝑥,𝐺,𝑚,𝑦   𝑚,𝐹,𝑥,𝑦

Proof of Theorem elbigo
Dummy variable 𝑓 is distinct from all other variables.
StepHypRef Expression
1 bigoval 45783 . . . . 5 (𝐺 ∈ (ℝ ↑pm ℝ) → (Ο‘𝐺) = {𝑓 ∈ (ℝ ↑pm ℝ) ∣ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝑓 ∩ (𝑥[,)+∞))(𝑓𝑦) ≤ (𝑚 · (𝐺𝑦))})
21eleq2d 2824 . . . 4 (𝐺 ∈ (ℝ ↑pm ℝ) → (𝐹 ∈ (Ο‘𝐺) ↔ 𝐹 ∈ {𝑓 ∈ (ℝ ↑pm ℝ) ∣ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝑓 ∩ (𝑥[,)+∞))(𝑓𝑦) ≤ (𝑚 · (𝐺𝑦))}))
3 dmeq 5801 . . . . . . . 8 (𝑓 = 𝐹 → dom 𝑓 = dom 𝐹)
43ineq1d 4142 . . . . . . 7 (𝑓 = 𝐹 → (dom 𝑓 ∩ (𝑥[,)+∞)) = (dom 𝐹 ∩ (𝑥[,)+∞)))
5 fveq1 6755 . . . . . . . 8 (𝑓 = 𝐹 → (𝑓𝑦) = (𝐹𝑦))
65breq1d 5080 . . . . . . 7 (𝑓 = 𝐹 → ((𝑓𝑦) ≤ (𝑚 · (𝐺𝑦)) ↔ (𝐹𝑦) ≤ (𝑚 · (𝐺𝑦))))
74, 6raleqbidv 3327 . . . . . 6 (𝑓 = 𝐹 → (∀𝑦 ∈ (dom 𝑓 ∩ (𝑥[,)+∞))(𝑓𝑦) ≤ (𝑚 · (𝐺𝑦)) ↔ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦))))
872rexbidv 3228 . . . . 5 (𝑓 = 𝐹 → (∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝑓 ∩ (𝑥[,)+∞))(𝑓𝑦) ≤ (𝑚 · (𝐺𝑦)) ↔ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦))))
98elrab 3617 . . . 4 (𝐹 ∈ {𝑓 ∈ (ℝ ↑pm ℝ) ∣ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝑓 ∩ (𝑥[,)+∞))(𝑓𝑦) ≤ (𝑚 · (𝐺𝑦))} ↔ (𝐹 ∈ (ℝ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦))))
102, 9bitrdi 286 . . 3 (𝐺 ∈ (ℝ ↑pm ℝ) → (𝐹 ∈ (Ο‘𝐺) ↔ (𝐹 ∈ (ℝ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦)))))
1110pm5.32i 574 . 2 ((𝐺 ∈ (ℝ ↑pm ℝ) ∧ 𝐹 ∈ (Ο‘𝐺)) ↔ (𝐺 ∈ (ℝ ↑pm ℝ) ∧ (𝐹 ∈ (ℝ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦)))))
12 elbigofrcl 45784 . . 3 (𝐹 ∈ (Ο‘𝐺) → 𝐺 ∈ (ℝ ↑pm ℝ))
1312pm4.71ri 560 . 2 (𝐹 ∈ (Ο‘𝐺) ↔ (𝐺 ∈ (ℝ ↑pm ℝ) ∧ 𝐹 ∈ (Ο‘𝐺)))
14 3anan12 1094 . 2 ((𝐹 ∈ (ℝ ↑pm ℝ) ∧ 𝐺 ∈ (ℝ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦))) ↔ (𝐺 ∈ (ℝ ↑pm ℝ) ∧ (𝐹 ∈ (ℝ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦)))))
1511, 13, 143bitr4i 302 1 (𝐹 ∈ (Ο‘𝐺) ↔ (𝐹 ∈ (ℝ ↑pm ℝ) ∧ 𝐺 ∈ (ℝ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹𝑦) ≤ (𝑚 · (𝐺𝑦))))
Colors of variables: wff setvar class
Syntax hints:  wb 205  wa 395  w3a 1085   = wceq 1539  wcel 2108  wral 3063  wrex 3064  {crab 3067  cin 3882   class class class wbr 5070  dom cdm 5580  cfv 6418  (class class class)co 7255  pm cpm 8574  cr 10801   · cmul 10807  +∞cpnf 10937  cle 10941  [,)cico 13010  Οcbigo 45781
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pr 5347
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-rab 3072  df-v 3424  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fv 6426  df-ov 7258  df-bigo 45782
This theorem is referenced by:  elbigo2  45786  elbigof  45788  elbigodm  45789
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