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| Mirrors > Home > MPE Home > Th. List > lo1bdd | Structured version Visualization version GIF version | ||
| Description: The defining property of an eventually upper bounded function. (Contributed by Mario Carneiro, 26-May-2016.) |
| Ref | Expression |
|---|---|
| lo1bdd | ⊢ ((𝐹 ∈ ≤𝑂(1) ∧ 𝐹:𝐴⟶ℝ) → ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ 𝐴 (𝑥 ≤ 𝑦 → (𝐹‘𝑦) ≤ 𝑚)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 487 | . 2 ⊢ ((𝐹 ∈ ≤𝑂(1) ∧ 𝐹:𝐴⟶ℝ) → 𝐹 ∈ ≤𝑂(1)) | |
| 2 | simpr 489 | . . 3 ⊢ ((𝐹 ∈ ≤𝑂(1) ∧ 𝐹:𝐴⟶ℝ) → 𝐹:𝐴⟶ℝ) | |
| 3 | fdm 6718 | . . . . 5 ⊢ (𝐹:𝐴⟶ℝ → dom 𝐹 = 𝐴) | |
| 4 | 3 | adantl 486 | . . . 4 ⊢ ((𝐹 ∈ ≤𝑂(1) ∧ 𝐹:𝐴⟶ℝ) → dom 𝐹 = 𝐴) |
| 5 | lo1dm 15572 | . . . . 5 ⊢ (𝐹 ∈ ≤𝑂(1) → dom 𝐹 ⊆ ℝ) | |
| 6 | 5 | adantr 485 | . . . 4 ⊢ ((𝐹 ∈ ≤𝑂(1) ∧ 𝐹:𝐴⟶ℝ) → dom 𝐹 ⊆ ℝ) |
| 7 | 4, 6 | eqsstrrd 3980 | . . 3 ⊢ ((𝐹 ∈ ≤𝑂(1) ∧ 𝐹:𝐴⟶ℝ) → 𝐴 ⊆ ℝ) |
| 8 | ello12 15569 | . . 3 ⊢ ((𝐹:𝐴⟶ℝ ∧ 𝐴 ⊆ ℝ) → (𝐹 ∈ ≤𝑂(1) ↔ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ 𝐴 (𝑥 ≤ 𝑦 → (𝐹‘𝑦) ≤ 𝑚))) | |
| 9 | 2, 7, 8 | syl2anc 595 | . 2 ⊢ ((𝐹 ∈ ≤𝑂(1) ∧ 𝐹:𝐴⟶ℝ) → (𝐹 ∈ ≤𝑂(1) ↔ ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ 𝐴 (𝑥 ≤ 𝑦 → (𝐹‘𝑦) ≤ 𝑚))) |
| 10 | 1, 9 | mpbid 235 | 1 ⊢ ((𝐹 ∈ ≤𝑂(1) ∧ 𝐹:𝐴⟶ℝ) → ∃𝑥 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑦 ∈ 𝐴 (𝑥 ≤ 𝑦 → (𝐹‘𝑦) ≤ 𝑚)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1567 ∈ wcel 2149 ∀wral 3085 ∃wrex 3095 ⊆ wss 3913 class class class wbr 5113 dom cdm 5664 ⟶wf 6535 ‘cfv 6539 ℝcr 11101 ≤ cle 11246 ≤𝑂(1)clo1 15540 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5273 ax-pow 5339 ax-pr 5407 ax-un 7735 ax-cnex 11158 ax-resscn 11159 ax-pre-lttri 11176 ax-pre-lttrn 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5559 df-po 5572 df-so 5573 df-xp 5670 df-rel 5671 df-cnv 5672 df-co 5673 df-dm 5674 df-rn 5675 df-res 5676 df-ima 5677 df-iota 6495 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-ov 7416 df-oprab 7417 df-mpo 7418 df-er 8696 df-pm 8829 df-en 8946 df-dom 8947 df-sdom 8948 df-pnf 11247 df-mnf 11248 df-xr 11249 df-ltxr 11250 df-le 11251 df-ico 13380 df-lo1 15544 |
| This theorem is referenced by: lo1res 15612 |
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