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| Mirrors > Home > MPE Home > Th. List > lediv2ad | Structured version Visualization version GIF version | ||
| Description: Division of both sides of 'less than or equal to' into a nonnegative number. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| rpred.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ+) |
| rpaddcld.1 | ⊢ (𝜑 → 𝐵 ∈ ℝ+) |
| lediv2ad.3 | ⊢ (𝜑 → 𝐶 ∈ ℝ) |
| lediv2ad.4 | ⊢ (𝜑 → 0 ≤ 𝐶) |
| lediv2ad.5 | ⊢ (𝜑 → 𝐴 ≤ 𝐵) |
| Ref | Expression |
|---|---|
| lediv2ad | ⊢ (𝜑 → (𝐶 / 𝐵) ≤ (𝐶 / 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpred.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ+) | |
| 2 | 1 | rpregt0d 13008 | . 2 ⊢ (𝜑 → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| 3 | rpaddcld.1 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ+) | |
| 4 | 3 | rpregt0d 13008 | . 2 ⊢ (𝜑 → (𝐵 ∈ ℝ ∧ 0 < 𝐵)) |
| 5 | lediv2ad.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ) | |
| 6 | lediv2ad.4 | . . 3 ⊢ (𝜑 → 0 ≤ 𝐶) | |
| 7 | 5, 6 | jca 511 | . 2 ⊢ (𝜑 → (𝐶 ∈ ℝ ∧ 0 ≤ 𝐶)) |
| 8 | lediv2ad.5 | . 2 ⊢ (𝜑 → 𝐴 ≤ 𝐵) | |
| 9 | lediv2a 12084 | . 2 ⊢ ((((𝐴 ∈ ℝ ∧ 0 < 𝐴) ∧ (𝐵 ∈ ℝ ∧ 0 < 𝐵) ∧ (𝐶 ∈ ℝ ∧ 0 ≤ 𝐶)) ∧ 𝐴 ≤ 𝐵) → (𝐶 / 𝐵) ≤ (𝐶 / 𝐴)) | |
| 10 | 2, 4, 7, 8, 9 | syl31anc 1375 | 1 ⊢ (𝜑 → (𝐶 / 𝐵) ≤ (𝐶 / 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∈ wcel 2109 class class class wbr 5110 (class class class)co 7390 ℝcr 11074 0cc0 11075 < clt 11215 ≤ cle 11216 / cdiv 11842 ℝ+crp 12958 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5254 ax-nul 5264 ax-pow 5323 ax-pr 5390 ax-un 7714 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-rmo 3356 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3757 df-csb 3866 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-br 5111 df-opab 5173 df-mpt 5192 df-id 5536 df-po 5549 df-so 5550 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-iota 6467 df-fun 6516 df-fn 6517 df-f 6518 df-f1 6519 df-fo 6520 df-f1o 6521 df-fv 6522 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-er 8674 df-en 8922 df-dom 8923 df-sdom 8924 df-pnf 11217 df-mnf 11218 df-xr 11219 df-ltxr 11220 df-le 11221 df-sub 11414 df-neg 11415 df-div 11843 df-rp 12959 |
| This theorem is referenced by: rlimno1 15627 lgamgulmlem2 26947 lgamgulmlem3 26948 lgamgulmlem5 26950 selberg3lem2 27476 pntrlog2bndlem2 27496 pntrlog2bndlem6a 27500 pntrlog2bnd 27502 aks4d1p1p7 42069 aks4d1p6 42076 ioodvbdlimc1lem2 45937 ioodvbdlimc2lem 45939 stirlinglem1 46079 stirlinglem10 46088 fourierdlem30 46142 |
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