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| Mirrors > Home > MPE Home > Th. List > o1dm | Structured version Visualization version GIF version | ||
| Description: An eventually bounded function's domain is a subset of the reals. (Contributed by Mario Carneiro, 15-Sep-2014.) |
| Ref | Expression |
|---|---|
| o1dm | ⊢ (𝐹 ∈ 𝑂(1) → dom 𝐹 ⊆ ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elo1 15584 | . . 3 ⊢ (𝐹 ∈ 𝑂(1) ↔ (𝐹 ∈ (ℂ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(abs‘(𝐹‘𝑦)) ≤ 𝑚)) | |
| 2 | 1 | simplbi 501 | . 2 ⊢ (𝐹 ∈ 𝑂(1) → 𝐹 ∈ (ℂ ↑pm ℝ)) |
| 3 | cnex 11187 | . . . 4 ⊢ ℂ ∈ V | |
| 4 | reex 11197 | . . . 4 ⊢ ℝ ∈ V | |
| 5 | 3, 4 | elpm2 8870 | . . 3 ⊢ (𝐹 ∈ (ℂ ↑pm ℝ) ↔ (𝐹:dom 𝐹⟶ℂ ∧ dom 𝐹 ⊆ ℝ)) |
| 6 | 5 | simprbi 502 | . 2 ⊢ (𝐹 ∈ (ℂ ↑pm ℝ) → dom 𝐹 ⊆ ℝ) |
| 7 | 2, 6 | syl 18 | 1 ⊢ (𝐹 ∈ 𝑂(1) → dom 𝐹 ⊆ ℝ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2142 ∀wral 3078 ∃wrex 3088 ∩ cin 3903 ⊆ wss 3904 class class class wbr 5108 dom cdm 5660 ⟶wf 6532 ‘cfv 6536 (class class class)co 7412 ↑pm cpm 8823 ℂcc 11104 ℝcr 11105 +∞cpnf 11246 ≤ cle 11250 [,)cico 13380 abscabs 15292 𝑂(1)co1 15544 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5256 ax-pow 5335 ax-pr 5403 ax-un 7734 ax-cnex 11162 ax-resscn 11163 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-rab 3416 df-v 3456 df-sbc 3744 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-br 5109 df-opab 5173 df-id 5555 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-fv 6544 df-ov 7415 df-oprab 7416 df-mpo 7417 df-pm 8825 df-o1 15548 |
| This theorem is used by: o1bdd 15589 lo1o1 15590 o1lo1 15595 o1lo12 15596 o1co 15644 o1of2 15671 o1rlimmul 15677 o1add2 15682 o1mul2 15683 o1sub2 15684 o1dif 15688 o1cxp 27150 |
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