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Theorem o1compt 14362
Description: Sufficient condition for transforming the index set of an eventually bounded function. (Contributed by Mario Carneiro, 12-May-2016.)
Hypotheses
Ref Expression
o1compt.1 (𝜑𝐹:𝐴⟶ℂ)
o1compt.2 (𝜑𝐹 ∈ 𝑂(1))
o1compt.3 ((𝜑𝑦𝐵) → 𝐶𝐴)
o1compt.4 (𝜑𝐵 ⊆ ℝ)
o1compt.5 ((𝜑𝑚 ∈ ℝ) → ∃𝑥 ∈ ℝ ∀𝑦𝐵 (𝑥𝑦𝑚𝐶))
Assertion
Ref Expression
o1compt (𝜑 → (𝐹 ∘ (𝑦𝐵𝐶)) ∈ 𝑂(1))
Distinct variable groups:   𝑥,𝑚,𝑦,𝐴   𝐵,𝑚,𝑥,𝑦   𝐶,𝑚,𝑥   𝜑,𝑚,𝑥,𝑦   𝑚,𝐹,𝑥
Allowed substitution hints:   𝐶(𝑦)   𝐹(𝑦)

Proof of Theorem o1compt
Dummy variable 𝑧 is distinct from all other variables.
StepHypRef Expression
1 o1compt.1 . 2 (𝜑𝐹:𝐴⟶ℂ)
2 o1compt.2 . 2 (𝜑𝐹 ∈ 𝑂(1))
3 o1compt.3 . . 3 ((𝜑𝑦𝐵) → 𝐶𝐴)
4 eqid 2651 . . 3 (𝑦𝐵𝐶) = (𝑦𝐵𝐶)
53, 4fmptd 6425 . 2 (𝜑 → (𝑦𝐵𝐶):𝐵𝐴)
6 o1compt.4 . 2 (𝜑𝐵 ⊆ ℝ)
7 o1compt.5 . . 3 ((𝜑𝑚 ∈ ℝ) → ∃𝑥 ∈ ℝ ∀𝑦𝐵 (𝑥𝑦𝑚𝐶))
8 nfv 1883 . . . . . . . 8 𝑦 𝑥𝑧
9 nfcv 2793 . . . . . . . . 9 𝑦𝑚
10 nfcv 2793 . . . . . . . . 9 𝑦
11 nffvmpt1 6237 . . . . . . . . 9 𝑦((𝑦𝐵𝐶)‘𝑧)
129, 10, 11nfbr 4732 . . . . . . . 8 𝑦 𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧)
138, 12nfim 1865 . . . . . . 7 𝑦(𝑥𝑧𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧))
14 nfv 1883 . . . . . . 7 𝑧(𝑥𝑦𝑚 ≤ ((𝑦𝐵𝐶)‘𝑦))
15 breq2 4689 . . . . . . . 8 (𝑧 = 𝑦 → (𝑥𝑧𝑥𝑦))
16 fveq2 6229 . . . . . . . . 9 (𝑧 = 𝑦 → ((𝑦𝐵𝐶)‘𝑧) = ((𝑦𝐵𝐶)‘𝑦))
1716breq2d 4697 . . . . . . . 8 (𝑧 = 𝑦 → (𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧) ↔ 𝑚 ≤ ((𝑦𝐵𝐶)‘𝑦)))
1815, 17imbi12d 333 . . . . . . 7 (𝑧 = 𝑦 → ((𝑥𝑧𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧)) ↔ (𝑥𝑦𝑚 ≤ ((𝑦𝐵𝐶)‘𝑦))))
1913, 14, 18cbvral 3197 . . . . . 6 (∀𝑧𝐵 (𝑥𝑧𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧)) ↔ ∀𝑦𝐵 (𝑥𝑦𝑚 ≤ ((𝑦𝐵𝐶)‘𝑦)))
20 simpr 476 . . . . . . . . . 10 ((𝜑𝑦𝐵) → 𝑦𝐵)
214fvmpt2 6330 . . . . . . . . . 10 ((𝑦𝐵𝐶𝐴) → ((𝑦𝐵𝐶)‘𝑦) = 𝐶)
2220, 3, 21syl2anc 694 . . . . . . . . 9 ((𝜑𝑦𝐵) → ((𝑦𝐵𝐶)‘𝑦) = 𝐶)
2322breq2d 4697 . . . . . . . 8 ((𝜑𝑦𝐵) → (𝑚 ≤ ((𝑦𝐵𝐶)‘𝑦) ↔ 𝑚𝐶))
2423imbi2d 329 . . . . . . 7 ((𝜑𝑦𝐵) → ((𝑥𝑦𝑚 ≤ ((𝑦𝐵𝐶)‘𝑦)) ↔ (𝑥𝑦𝑚𝐶)))
2524ralbidva 3014 . . . . . 6 (𝜑 → (∀𝑦𝐵 (𝑥𝑦𝑚 ≤ ((𝑦𝐵𝐶)‘𝑦)) ↔ ∀𝑦𝐵 (𝑥𝑦𝑚𝐶)))
2619, 25syl5bb 272 . . . . 5 (𝜑 → (∀𝑧𝐵 (𝑥𝑧𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧)) ↔ ∀𝑦𝐵 (𝑥𝑦𝑚𝐶)))
2726rexbidv 3081 . . . 4 (𝜑 → (∃𝑥 ∈ ℝ ∀𝑧𝐵 (𝑥𝑧𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧)) ↔ ∃𝑥 ∈ ℝ ∀𝑦𝐵 (𝑥𝑦𝑚𝐶)))
2827adantr 480 . . 3 ((𝜑𝑚 ∈ ℝ) → (∃𝑥 ∈ ℝ ∀𝑧𝐵 (𝑥𝑧𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧)) ↔ ∃𝑥 ∈ ℝ ∀𝑦𝐵 (𝑥𝑦𝑚𝐶)))
297, 28mpbird 247 . 2 ((𝜑𝑚 ∈ ℝ) → ∃𝑥 ∈ ℝ ∀𝑧𝐵 (𝑥𝑧𝑚 ≤ ((𝑦𝐵𝐶)‘𝑧)))
301, 2, 5, 6, 29o1co 14361 1 (𝜑 → (𝐹 ∘ (𝑦𝐵𝐶)) ∈ 𝑂(1))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 383   = wceq 1523  wcel 2030  wral 2941  wrex 2942  wss 3607   class class class wbr 4685  cmpt 4762  ccom 5147  wf 5922  cfv 5926  cc 9972  cr 9973  cle 10113  𝑂(1)co1 14261
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991  ax-cnex 10030  ax-resscn 10031  ax-pre-lttri 10048  ax-pre-lttrn 10049
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-nel 2927  df-ral 2946  df-rex 2947  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-op 4217  df-uni 4469  df-br 4686  df-opab 4746  df-mpt 4763  df-id 5053  df-po 5064  df-so 5065  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-er 7787  df-pm 7902  df-en 7998  df-dom 7999  df-sdom 8000  df-pnf 10114  df-mnf 10115  df-xr 10116  df-ltxr 10117  df-le 10118  df-ico 12219  df-o1 14265
This theorem is referenced by:  dchrisum0  25254
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