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| Mirrors > Home > MPE Home > Th. List > ovolsf | Structured version Visualization version GIF version | ||
| Description: Closure for the partial sums of the interval length function. (Contributed by Mario Carneiro, 16-Mar-2014.) |
| Ref | Expression |
|---|---|
| ovolfs.1 | ⊢ 𝐺 = ((abs ∘ − ) ∘ 𝐹) |
| ovolfs.2 | ⊢ 𝑆 = seq1( + , 𝐺) |
| Ref | Expression |
|---|---|
| ovolsf | ⊢ (𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)) → 𝑆:ℕ⟶(0[,)+∞)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnuz 13004 | . . 3 ⊢ ℕ = (ℤ≥‘1) | |
| 2 | 1zzd 12727 | . . 3 ⊢ (𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)) → 1 ∈ ℤ) | |
| 3 | ovolfs.1 | . . . . 5 ⊢ 𝐺 = ((abs ∘ − ) ∘ 𝐹) | |
| 4 | 3 | ovolfsf 25792 | . . . 4 ⊢ (𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)) → 𝐺:ℕ⟶(0[,)+∞)) |
| 5 | 4 | ffvelcdmda 7084 | . . 3 ⊢ ((𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)) ∧ 𝑥 ∈ ℕ) → (𝐺‘𝑥) ∈ (0[,)+∞)) |
| 6 | ge0addcl 13591 | . . . 4 ⊢ ((𝑥 ∈ (0[,)+∞) ∧ 𝑦 ∈ (0[,)+∞)) → (𝑥 + 𝑦) ∈ (0[,)+∞)) | |
| 7 | 6 | adantl 487 | . . 3 ⊢ ((𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)) ∧ (𝑥 ∈ (0[,)+∞) ∧ 𝑦 ∈ (0[,)+∞))) → (𝑥 + 𝑦) ∈ (0[,)+∞)) |
| 8 | 1, 2, 5, 7 | seqf 14166 | . 2 ⊢ (𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)) → seq1( + , 𝐺):ℕ⟶(0[,)+∞)) |
| 9 | ovolfs.2 | . . 3 ⊢ 𝑆 = seq1( + , 𝐺) | |
| 10 | 9 | feq1i 6700 | . 2 ⊢ (𝑆:ℕ⟶(0[,)+∞) ↔ seq1( + , 𝐺):ℕ⟶(0[,)+∞)) |
| 11 | 8, 10 | sylibr 237 | 1 ⊢ (𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)) → 𝑆:ℕ⟶(0[,)+∞)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∩ cin 3898 × cxp 5649 ∘ ccom 5655 ⟶wf 6534 (class class class)co 7420 ℝcr 11199 0cc0 11200 1c1 11201 + caddc 11203 +∞cpnf 11340 ≤ cle 11344 − cmin 11541 ℕcn 12335 [,)cico 13478 seqcseq 14144 abscabs 15401 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 ax-pre-sup 11278 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-sup 9434 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-div 11974 df-nn 12336 df-2 12405 df-3 12406 df-n0 12607 df-z 12694 df-uz 12966 df-rp 13121 df-ico 13482 df-fz 13640 df-seq 14145 df-exp 14205 df-cj 15266 df-re 15267 df-im 15268 df-sqrt 15402 df-abs 15403 |
| This theorem is used by: elovolm 25796 ovolmge0 25798 ovolgelb 25801 ovollb2lem 25809 ovollb2 25810 ovolunlem1a 25817 ovolunlem1 25818 ovoliunlem1 25823 ovoliunlem2 25824 ovolscalem1 25834 ovolicc1 25837 ovolicc2lem4 25841 ioombl1lem2 25880 ioombl1lem4 25882 uniioovol 25900 uniiccvol 25901 uniioombllem1 25902 uniioombllem2 25904 uniioombllem3 25906 uniioombllem6 25909 mblfinlem3 38577 mblfinlem4 38578 ismblfin 38579 |
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