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Theorem lo1mptrcl 15639
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 15535 . . . 4 ((𝑥𝐴𝐵) ∈ ≤𝑂(1) → (𝑥𝐴𝐵):dom (𝑥𝐴𝐵)⟶ℝ)
31, 2syl 17 . . 3 (𝜑 → (𝑥𝐴𝐵):dom (𝑥𝐴𝐵)⟶ℝ)
4 o1add2.1 . . . . . 6 ((𝜑𝑥𝐴) → 𝐵𝑉)
54ralrimiva 3153 . . . . 5 (𝜑 → ∀𝑥𝐴 𝐵𝑉)
6 dmmptg 6223 . . . . 5 (∀𝑥𝐴 𝐵𝑉 → dom (𝑥𝐴𝐵) = 𝐴)
75, 6syl 17 . . . 4 (𝜑 → dom (𝑥𝐴𝐵) = 𝐴)
87feq2d 6669 . . 3 (𝜑 → ((𝑥𝐴𝐵):dom (𝑥𝐴𝐵)⟶ℝ ↔ (𝑥𝐴𝐵):𝐴⟶ℝ))
93, 8mpbid 234 . 2 (𝜑 → (𝑥𝐴𝐵):𝐴⟶ℝ)
109fvmptelcdm 7088 1 ((𝜑𝑥𝐴) → 𝐵 ∈ ℝ)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 399   = wceq 1559  wcel 2141  wral 3075  cmpt 5178  dom cdm 5643  wf 6511  cr 11065  ≤𝑂(1)clo1 15504
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-sep 5243  ax-pow 5319  ax-pr 5387  ax-un 7712  ax-cnex 11122  ax-resscn 11123
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-nf 1803  df-sb 2090  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3076  df-rex 3086  df-rab 3414  df-v 3455  df-sbc 3743  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4284  df-if 4478  df-pw 4554  df-sn 4580  df-pr 4582  df-op 4586  df-uni 4863  df-br 5098  df-opab 5160  df-mpt 5179  df-id 5538  df-xp 5649  df-rel 5650  df-cnv 5651  df-co 5652  df-dm 5653  df-rn 5654  df-res 5655  df-ima 5656  df-iota 6471  df-fun 6517  df-fn 6518  df-f 6519  df-fv 6523  df-ov 7393  df-oprab 7394  df-mpo 7395  df-pm 8804  df-lo1 15508
This theorem is referenced by:  lo1add  15644  lo1mul  15645  lo1mul2  15646  lo1sub  15648  lo1le  15669
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