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| Mirrors > Home > MPE Home > Th. List > o1add | Structured version Visualization version GIF version | ||
| Description: The sum of two eventually bounded functions is eventually bounded. (Contributed by Mario Carneiro, 15-Sep-2014.) (Proof shortened by Fan Zheng, 14-Jul-2016.) |
| Ref | Expression |
|---|---|
| o1add | ⊢ ((𝐹 ∈ 𝑂(1) ∧ 𝐺 ∈ 𝑂(1)) → (𝐹 ∘f + 𝐺) ∈ 𝑂(1)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | readdcl 11096 | . 2 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 + 𝑦) ∈ ℝ) | |
| 2 | addcl 11095 | . 2 ⊢ ((𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) → (𝑚 + 𝑛) ∈ ℂ) | |
| 3 | simp2l 1200 | . . . . . 6 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → 𝑚 ∈ ℂ) | |
| 4 | simp2r 1201 | . . . . . 6 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → 𝑛 ∈ ℂ) | |
| 5 | 3, 4 | addcld 11138 | . . . . 5 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (𝑚 + 𝑛) ∈ ℂ) |
| 6 | 5 | abscld 15348 | . . . 4 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (abs‘(𝑚 + 𝑛)) ∈ ℝ) |
| 7 | 3 | abscld 15348 | . . . . 5 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (abs‘𝑚) ∈ ℝ) |
| 8 | 4 | abscld 15348 | . . . . 5 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (abs‘𝑛) ∈ ℝ) |
| 9 | 7, 8 | readdcld 11148 | . . . 4 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → ((abs‘𝑚) + (abs‘𝑛)) ∈ ℝ) |
| 10 | simp1l 1198 | . . . . 5 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → 𝑥 ∈ ℝ) | |
| 11 | simp1r 1199 | . . . . 5 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → 𝑦 ∈ ℝ) | |
| 12 | 10, 11 | readdcld 11148 | . . . 4 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (𝑥 + 𝑦) ∈ ℝ) |
| 13 | 3, 4 | abstrid 15368 | . . . 4 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (abs‘(𝑚 + 𝑛)) ≤ ((abs‘𝑚) + (abs‘𝑛))) |
| 14 | simp3l 1202 | . . . . 5 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (abs‘𝑚) ≤ 𝑥) | |
| 15 | simp3r 1203 | . . . . 5 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (abs‘𝑛) ≤ 𝑦) | |
| 16 | 7, 8, 10, 11, 14, 15 | le2addd 11743 | . . . 4 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → ((abs‘𝑚) + (abs‘𝑛)) ≤ (𝑥 + 𝑦)) |
| 17 | 6, 9, 12, 13, 16 | letrd 11277 | . . 3 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ) ∧ ((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦)) → (abs‘(𝑚 + 𝑛)) ≤ (𝑥 + 𝑦)) |
| 18 | 17 | 3expia 1121 | . 2 ⊢ (((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ (𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ)) → (((abs‘𝑚) ≤ 𝑥 ∧ (abs‘𝑛) ≤ 𝑦) → (abs‘(𝑚 + 𝑛)) ≤ (𝑥 + 𝑦))) |
| 19 | 1, 2, 18 | o1of2 15522 | 1 ⊢ ((𝐹 ∈ 𝑂(1) ∧ 𝐺 ∈ 𝑂(1)) → (𝐹 ∘f + 𝐺) ∈ 𝑂(1)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1086 ∈ wcel 2113 class class class wbr 5093 ‘cfv 6486 (class class class)co 7352 ∘f cof 7614 ℂcc 11011 ℝcr 11012 + caddc 11016 ≤ cle 11154 abscabs 15143 𝑂(1)co1 15395 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-rep 5219 ax-sep 5236 ax-nul 5246 ax-pow 5305 ax-pr 5372 ax-un 7674 ax-cnex 11069 ax-resscn 11070 ax-1cn 11071 ax-icn 11072 ax-addcl 11073 ax-addrcl 11074 ax-mulcl 11075 ax-mulrcl 11076 ax-mulcom 11077 ax-addass 11078 ax-mulass 11079 ax-distr 11080 ax-i2m1 11081 ax-1ne0 11082 ax-1rid 11083 ax-rnegex 11084 ax-rrecex 11085 ax-cnre 11086 ax-pre-lttri 11087 ax-pre-lttrn 11088 ax-pre-ltadd 11089 ax-pre-mulgt0 11090 ax-pre-sup 11091 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2882 df-ne 2930 df-nel 3034 df-ral 3049 df-rex 3058 df-rmo 3347 df-reu 3348 df-rab 3397 df-v 3439 df-sbc 3738 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4283 df-if 4475 df-pw 4551 df-sn 4576 df-pr 4578 df-op 4582 df-uni 4859 df-iun 4943 df-br 5094 df-opab 5156 df-mpt 5175 df-tr 5201 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7309 df-ov 7355 df-oprab 7356 df-mpo 7357 df-of 7616 df-om 7803 df-2nd 7928 df-frecs 8217 df-wrecs 8248 df-recs 8297 df-rdg 8335 df-er 8628 df-pm 8759 df-en 8876 df-dom 8877 df-sdom 8878 df-sup 9333 df-pnf 11155 df-mnf 11156 df-xr 11157 df-ltxr 11158 df-le 11159 df-sub 11353 df-neg 11354 df-div 11782 df-nn 12133 df-2 12195 df-3 12196 df-n0 12389 df-z 12476 df-uz 12739 df-rp 12893 df-ico 13253 df-seq 13911 df-exp 13971 df-cj 15008 df-re 15009 df-im 15010 df-sqrt 15144 df-abs 15145 df-o1 15399 |
| This theorem is referenced by: o1add2 15533 o1dif 15539 fsumo1 15721 mudivsum 27469 selberglem2 27485 pntrsumo1 27504 |
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