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| Mirrors > Home > MPE Home > Th. List > lo1dm | Structured version Visualization version GIF version | ||
| Description: An eventually upper bounded function's domain is a subset of the reals. (Contributed by Mario Carneiro, 26-May-2016.) |
| Ref | Expression |
|---|---|
| lo1dm | ⊢ (𝐹 ∈ ≤𝑂(1) → dom 𝐹 ⊆ ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ello1 15711 | . . 3 ⊢ (𝐹 ∈ ≤𝑂(1) ↔ (𝐹 ∈ (ℝ ↑pm ℝ) ∧ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ (dom 𝐹 ∩ (𝑥[,)+∞))(𝐹‘𝑦) ≤ 𝑚)) | |
| 2 | 1 | simplbi 502 | . 2 ⊢ (𝐹 ∈ ≤𝑂(1) → 𝐹 ∈ (ℝ ↑pm ℝ)) |
| 3 | reex 11318 | . . . 4 ⊢ ℝ ∈ V | |
| 4 | 3, 3 | elpm2 8930 | . . 3 ⊢ (𝐹 ∈ (ℝ ↑pm ℝ) ↔ (𝐹:dom 𝐹⟶ℝ ∧ dom 𝐹 ⊆ ℝ)) |
| 5 | 4 | simprbi 503 | . 2 ⊢ (𝐹 ∈ (ℝ ↑pm ℝ) → dom 𝐹 ⊆ ℝ) |
| 6 | 2, 5 | syl 18 | 1 ⊢ (𝐹 ∈ ≤𝑂(1) → dom 𝐹 ⊆ ℝ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2147 ∀wral 3080 ∃wrex 3090 ⊆ wss 3900 ∩ cin 4092 class class class wbr 5106 dom cdm 5655 ⟶wf 6554 ‘cfv 6558 (class class class)co 7443 ↑pm cpm 8876 ℝcr 11226 +∞cpnf 11367 ≤ cle 11371 [,)cico 13505 ≤𝑂(1)clo1 15683 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-cnex 11283 ax-resscn 11284 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-fv 6566 df-ov 7446 df-oprab 7447 df-mpo 7448 df-pm 8878 df-lo1 15687 |
| This theorem is used by: lo1bdd 15716 lo1o1 15728 o1lo1 15733 o1lo12 15734 lo1res 15755 lo1eq 15764 lo1add 15823 lo1mul 15824 lo1le 15848 |
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