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| Mirrors > Home > MPE Home > Th. List > divge0d | Structured version Visualization version GIF version | ||
| Description: The ratio of nonnegative and positive numbers is nonnegative. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| rpgecld.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| rpgecld.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ+) |
| divge0d.3 | ⊢ (𝜑 → 0 ≤ 𝐴) |
| Ref | Expression |
|---|---|
| divge0d | ⊢ (𝜑 → 0 ≤ (𝐴 / 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpgecld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 2 | divge0d.3 | . 2 ⊢ (𝜑 → 0 ≤ 𝐴) | |
| 3 | rpgecld.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ+) | |
| 4 | 3 | rpregt0d 13057 | . 2 ⊢ (𝜑 → (𝐵 ∈ ℝ ∧ 0 < 𝐵)) |
| 5 | divge0 12075 | . 2 ⊢ (((𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 0 < 𝐵)) → 0 ≤ (𝐴 / 𝐵)) | |
| 6 | 1, 2, 4, 5 | syl21anc 850 | 1 ⊢ (𝜑 → 0 ≤ (𝐴 / 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 ∈ wcel 2145 class class class wbr 5105 (class class class)co 7400 ℝcr 11087 0cc0 11088 < clt 11231 ≤ cle 11232 / cdiv 11859 ℝ+crp 13007 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4869 df-br 5106 df-opab 5168 df-mpt 5187 df-id 5547 df-po 5560 df-so 5561 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-er 8682 df-en 8932 df-dom 8933 df-sdom 8934 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-rp 13008 |
| This theorem is referenced by: iseralt 15726 nn0ehalf 16426 nn0oddm1d2 16433 bitsfzo 16483 bitsmod 16484 iserodd 16885 icopnfcnv 25062 logdiflbnd 27117 lgamgulmlem3 27153 chpo1ubb 27603 vmadivsumb 27605 rpvmasumlem 27609 dchrisumlem1 27611 dchrvmasumlem2 27620 rplogsum 27649 dirith2 27650 mulog2sumlem2 27657 vmalogdivsum2 27660 2vmadivsumlem 27662 selbergb 27671 selberg2b 27674 selberg4lem1 27682 pntrlog2bndlem2 27700 pntrlog2bndlem4 27702 pntrlog2bndlem5 27703 pntrlog2bndlem6 27705 pntrlog2bnd 27706 pntibndlem2 27713 ttgcontlem1 29143 constrresqrtcl 34084 sqsscirc1 34215 faclimlem1 36106 knoppndvlem14 36976 itg2addnclem2 38183 geomcau 38270 3lexlogpow5ineq2 42684 aks4d1p1p7 42703 aks6d1c2lem4 42756 aks6d1c7lem1 42809 areaquad 43805 sqrtcvallem2 44225 sqrtcvallem4 44227 stirlinglem11 46656 stirlinglem12 46657 fourierdlem26 46705 fourierdlem30 46709 fourierdlem47 46725 sge0ad2en 47003 eenglngeehlnmlem2 49369 |
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