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| Mirrors > Home > MPE Home > Th. List > ello12r | Structured version Visualization version GIF version | ||
| Description: Sufficient condition for elementhood in the set of eventually upper bounded functions. (Contributed by Mario Carneiro, 26-May-2016.) |
| Ref | Expression |
|---|---|
| ello12r | ⊢ (((𝐹:𝐴⟶ℝ ∧ 𝐴 ⊆ ℝ) ∧ (𝐶 ∈ ℝ ∧ 𝑀 ∈ ℝ) ∧ ∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑀)) → 𝐹 ∈ ≤𝑂(1)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breq1 5109 | . . . . . . 7 ⊢ (𝑦 = 𝐶 → (𝑦 ≤ 𝑥 ↔ 𝐶 ≤ 𝑥)) | |
| 2 | 1 | imbi1d 344 | . . . . . 6 ⊢ (𝑦 = 𝐶 → ((𝑦 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚) ↔ (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚))) |
| 3 | 2 | ralbidv 3189 | . . . . 5 ⊢ (𝑦 = 𝐶 → (∀𝑥 ∈ 𝐴 (𝑦 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚) ↔ ∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚))) |
| 4 | breq2 5110 | . . . . . . 7 ⊢ (𝑚 = 𝑀 → ((𝐹‘𝑥) ≤ 𝑚 ↔ (𝐹‘𝑥) ≤ 𝑀)) | |
| 5 | 4 | imbi2d 343 | . . . . . 6 ⊢ (𝑚 = 𝑀 → ((𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚) ↔ (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑀))) |
| 6 | 5 | ralbidv 3189 | . . . . 5 ⊢ (𝑚 = 𝑀 → (∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚) ↔ ∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑀))) |
| 7 | 3, 6 | rspc2ev 3592 | . . . 4 ⊢ ((𝐶 ∈ ℝ ∧ 𝑀 ∈ ℝ ∧ ∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑀)) → ∃𝑦 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑥 ∈ 𝐴 (𝑦 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚)) |
| 8 | 7 | 3expa 1136 | . . 3 ⊢ (((𝐶 ∈ ℝ ∧ 𝑀 ∈ ℝ) ∧ ∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑀)) → ∃𝑦 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑥 ∈ 𝐴 (𝑦 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚)) |
| 9 | 8 | 3adant1 1148 | . 2 ⊢ (((𝐹:𝐴⟶ℝ ∧ 𝐴 ⊆ ℝ) ∧ (𝐶 ∈ ℝ ∧ 𝑀 ∈ ℝ) ∧ ∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑀)) → ∃𝑦 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑥 ∈ 𝐴 (𝑦 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚)) |
| 10 | ello12 15698 | . . 3 ⊢ ((𝐹:𝐴⟶ℝ ∧ 𝐴 ⊆ ℝ) → (𝐹 ∈ ≤𝑂(1) ↔ ∃𝑦 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑥 ∈ 𝐴 (𝑦 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚))) | |
| 11 | 10 | 3ad2ant1 1151 | . 2 ⊢ (((𝐹:𝐴⟶ℝ ∧ 𝐴 ⊆ ℝ) ∧ (𝐶 ∈ ℝ ∧ 𝑀 ∈ ℝ) ∧ ∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑀)) → (𝐹 ∈ ≤𝑂(1) ↔ ∃𝑦 ∈ ℝ ∃𝑚 ∈ ℝ ∀𝑥 ∈ 𝐴 (𝑦 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑚))) |
| 12 | 9, 11 | mpbird 260 | 1 ⊢ (((𝐹:𝐴⟶ℝ ∧ 𝐴 ⊆ ℝ) ∧ (𝐶 ∈ ℝ ∧ 𝑀 ∈ ℝ) ∧ ∀𝑥 ∈ 𝐴 (𝐶 ≤ 𝑥 → (𝐹‘𝑥) ≤ 𝑀)) → 𝐹 ∈ ≤𝑂(1)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∧ w3a 1103 = wceq 1569 ∈ wcel 2146 ∀wral 3080 ∃wrex 3090 ⊆ wss 3900 class class class wbr 5106 ⟶wf 6543 ‘cfv 6547 ℝcr 11212 ≤ cle 11357 ≤𝑂(1)clo1 15669 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7761 ax-cnex 11269 ax-resscn 11270 ax-pre-lttri 11287 ax-pre-lttrn 11288 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 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-mpt 5190 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6501 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-ov 7433 df-oprab 7434 df-mpo 7435 df-er 8731 df-pm 8864 df-en 8988 df-dom 8989 df-sdom 8990 df-pnf 11358 df-mnf 11359 df-xr 11360 df-ltxr 11361 df-le 11362 df-ico 13495 df-lo1 15673 |
| This theorem is used by: lo1resb 15746 |
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