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Theorem lo1mptrcl 15575
Description: Reverse closure for an eventually upper bounded function. (Contributed by Mario Carneiro, 26-May-2016.)
Hypotheses
Ref Expression
o1add2.1 ((𝜑𝑥𝐴) → 𝐵𝑉)
lo1mptrcl.3 (𝜑 → (𝑥𝐴𝐵) ∈ ≤𝑂(1))
Assertion
Ref Expression
lo1mptrcl ((𝜑𝑥𝐴) → 𝐵 ∈ ℝ)
Distinct variable groups:   𝑥,𝐴   𝜑,𝑥
Allowed substitution hints:   𝐵(𝑥)   𝑉(𝑥)

Proof of Theorem lo1mptrcl
StepHypRef Expression
1 lo1mptrcl.3 . . . 4 (𝜑 → (𝑥𝐴𝐵) ∈ ≤𝑂(1))
2 lo1f 15471 . . . 4 ((𝑥𝐴𝐵) ∈ ≤𝑂(1) → (𝑥𝐴𝐵):dom (𝑥𝐴𝐵)⟶ℝ)
31, 2syl 17 . . 3 (𝜑 → (𝑥𝐴𝐵):dom (𝑥𝐴𝐵)⟶ℝ)
4 o1add2.1 . . . . . 6 ((𝜑𝑥𝐴) → 𝐵𝑉)
54ralrimiva 3130 . . . . 5 (𝜑 → ∀𝑥𝐴 𝐵𝑉)
6 dmmptg 6200 . . . . 5 (∀𝑥𝐴 𝐵𝑉 → dom (𝑥𝐴𝐵) = 𝐴)
75, 6syl 17 . . . 4 (𝜑 → dom (𝑥𝐴𝐵) = 𝐴)
87feq2d 6646 . . 3 (𝜑 → ((𝑥𝐴𝐵):dom (𝑥𝐴𝐵)⟶ℝ ↔ (𝑥𝐴𝐵):𝐴⟶ℝ))
93, 8mpbid 232 . 2 (𝜑 → (𝑥𝐴𝐵):𝐴⟶ℝ)
109fvmptelcdm 7059 1 ((𝜑𝑥𝐴) → 𝐵 ∈ ℝ)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1542  wcel 2114  wral 3052  cmpt 5167  dom cdm 5624  wf 6488  cr 11028  ≤𝑂(1)clo1 15440
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-sep 5231  ax-pow 5302  ax-pr 5370  ax-un 7682  ax-cnex 11085  ax-resscn 11086
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3063  df-rab 3391  df-v 3432  df-sbc 3730  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-nul 4275  df-if 4468  df-pw 4544  df-sn 4569  df-pr 4571  df-op 4575  df-uni 4852  df-br 5087  df-opab 5149  df-mpt 5168  df-id 5519  df-xp 5630  df-rel 5631  df-cnv 5632  df-co 5633  df-dm 5634  df-rn 5635  df-res 5636  df-ima 5637  df-iota 6448  df-fun 6494  df-fn 6495  df-f 6496  df-fv 6500  df-ov 7363  df-oprab 7364  df-mpo 7365  df-pm 8769  df-lo1 15444
This theorem is referenced by:  lo1add  15580  lo1mul  15581  lo1mul2  15582  lo1sub  15584  lo1le  15605
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