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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 12992 | . 2 ⊢ (𝜑 → (𝐶 ∈ ℝ ∧ 0 < 𝐶)) |
| 5 | lemuldiv 12036 | . 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 5085 (class class class)co 7367 ℝcr 11037 0cc0 11038 · cmul 11043 < clt 11179 ≤ cle 11180 / cdiv 11807 ℝ+crp 12942 |
| 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 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-po 5539 df-so 5540 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-rp 12943 |
| This theorem is referenced by: leexp2a 14134 bitsfzolem 16403 bitsfzo 16404 bitscmp 16407 gexexlem 19827 ovolsca 25482 abelthlem7 26403 cxpaddle 26716 divsqrtsumo1 26947 fsumharmonic 26975 lgamgulmlem5 26996 basellem8 27051 fsumvma2 27177 chpchtsum 27182 chpub 27183 logexprlim 27188 efexple 27244 chpchtlim 27442 rplogsumlem2 27448 dchrisum0lem1a 27449 dchrmusum2 27457 dchrvmasumlem2 27461 dchrisum0lem1 27479 mulog2sumlem2 27498 vmalogdivsum2 27501 2vmadivsumlem 27503 selberglem2 27509 chpdifbndlem1 27516 selberg3lem1 27520 selberg4lem1 27523 pntrlog2bndlem5 27544 pntlemh 27562 pntlemn 27563 pntlemr 27565 pntlemj 27566 ttgcontlem1 28953 logdivsqrle 34794 unbdqndv2lem2 36770 itg2addnclem2 37993 3lexlogpow5ineq5 42499 aks4d1p8 42526 aks6d1c2lem4 42566 fourierdlem64 46598 rehalfge1 47787 |
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