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| Mirrors > Home > MPE Home > Th. List > lemuldivd | Structured version Visualization version GIF version | ||
| Description: 'Less than or equal to' relationship between division and multiplication. (Contributed by Mario Carneiro, 30-May-2016.) |
| Ref | Expression |
|---|---|
| ltmul1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| ltmul1d.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
| ltmul1d.3 | ⊢ (𝜑 → 𝐶 ∈ ℝ+) |
| Ref | Expression |
|---|---|
| lemuldivd | ⊢ (𝜑 → ((𝐴 · 𝐶) ≤ 𝐵 ↔ 𝐴 ≤ (𝐵 / 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltmul1d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 2 | ltmul1d.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
| 3 | ltmul1d.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ+) | |
| 4 | 3 | rpregt0d 12967 | . 2 ⊢ (𝜑 → (𝐶 ∈ ℝ ∧ 0 < 𝐶)) |
| 5 | lemuldiv 12034 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ (𝐶 ∈ ℝ ∧ 0 < 𝐶)) → ((𝐴 · 𝐶) ≤ 𝐵 ↔ 𝐴 ≤ (𝐵 / 𝐶))) | |
| 6 | 1, 2, 4, 5 | syl3anc 1374 | 1 ⊢ (𝜑 → ((𝐴 · 𝐶) ≤ 𝐵 ↔ 𝐴 ≤ (𝐵 / 𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2114 class class class wbr 5100 (class class class)co 7368 ℝcr 11037 0cc0 11038 · cmul 11043 < clt 11178 ≤ cle 11179 / cdiv 11806 ℝ+crp 12917 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-po 5540 df-so 5541 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-riota 7325 df-ov 7371 df-oprab 7372 df-mpo 7373 df-er 8645 df-en 8896 df-dom 8897 df-sdom 8898 df-pnf 11180 df-mnf 11181 df-xr 11182 df-ltxr 11183 df-le 11184 df-sub 11378 df-neg 11379 df-div 11807 df-rp 12918 |
| This theorem is referenced by: leexp2a 14107 bitsfzolem 16373 bitsfzo 16374 bitscmp 16377 gexexlem 19793 ovolsca 25484 abelthlem7 26416 cxpaddle 26730 divsqrtsumo1 26962 fsumharmonic 26990 lgamgulmlem5 27011 basellem8 27066 fsumvma2 27193 chpchtsum 27198 chpub 27199 logexprlim 27204 efexple 27260 chpchtlim 27458 rplogsumlem2 27464 dchrisum0lem1a 27465 dchrmusum2 27473 dchrvmasumlem2 27477 dchrisum0lem1 27495 mulog2sumlem2 27514 vmalogdivsum2 27517 2vmadivsumlem 27519 selberglem2 27525 chpdifbndlem1 27532 selberg3lem1 27536 selberg4lem1 27539 pntrlog2bndlem5 27560 pntlemh 27578 pntlemn 27579 pntlemr 27581 pntlemj 27582 ttgcontlem1 28969 logdivsqrle 34828 unbdqndv2lem2 36732 itg2addnclem2 37923 3lexlogpow5ineq5 42430 aks4d1p8 42457 aks6d1c2lem4 42497 fourierdlem64 46528 rehalfge1 47695 |
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