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Mirrors > Home > MPE Home > Th. List > lediv12ad | Structured version Visualization version GIF version |
Description: Comparison of ratio of two nonnegative numbers. (Contributed by Mario Carneiro, 28-May-2016.) |
Ref | Expression |
---|---|
ltmul1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
ltmul1d.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
ltmul1d.3 | ⊢ (𝜑 → 𝐶 ∈ ℝ+) |
lediv12ad.4 | ⊢ (𝜑 → 𝐷 ∈ ℝ) |
lediv12ad.5 | ⊢ (𝜑 → 0 ≤ 𝐴) |
lediv12ad.6 | ⊢ (𝜑 → 𝐴 ≤ 𝐵) |
lediv12ad.7 | ⊢ (𝜑 → 𝐶 ≤ 𝐷) |
Ref | Expression |
---|---|
lediv12ad | ⊢ (𝜑 → (𝐴 / 𝐷) ≤ (𝐵 / 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ltmul1d.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
2 | ltmul1d.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
3 | 1, 2 | jca 510 | . 2 ⊢ (𝜑 → (𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ)) |
4 | lediv12ad.5 | . . 3 ⊢ (𝜑 → 0 ≤ 𝐴) | |
5 | lediv12ad.6 | . . 3 ⊢ (𝜑 → 𝐴 ≤ 𝐵) | |
6 | 4, 5 | jca 510 | . 2 ⊢ (𝜑 → (0 ≤ 𝐴 ∧ 𝐴 ≤ 𝐵)) |
7 | ltmul1d.3 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ ℝ+) | |
8 | 7 | rpred 13046 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ) |
9 | lediv12ad.4 | . . 3 ⊢ (𝜑 → 𝐷 ∈ ℝ) | |
10 | 8, 9 | jca 510 | . 2 ⊢ (𝜑 → (𝐶 ∈ ℝ ∧ 𝐷 ∈ ℝ)) |
11 | 7 | rpgt0d 13049 | . . 3 ⊢ (𝜑 → 0 < 𝐶) |
12 | lediv12ad.7 | . . 3 ⊢ (𝜑 → 𝐶 ≤ 𝐷) | |
13 | 11, 12 | jca 510 | . 2 ⊢ (𝜑 → (0 < 𝐶 ∧ 𝐶 ≤ 𝐷)) |
14 | lediv12a 12135 | . 2 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (0 ≤ 𝐴 ∧ 𝐴 ≤ 𝐵)) ∧ ((𝐶 ∈ ℝ ∧ 𝐷 ∈ ℝ) ∧ (0 < 𝐶 ∧ 𝐶 ≤ 𝐷))) → (𝐴 / 𝐷) ≤ (𝐵 / 𝐶)) | |
15 | 3, 6, 10, 13, 14 | syl22anc 837 | 1 ⊢ (𝜑 → (𝐴 / 𝐷) ≤ (𝐵 / 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 394 ∈ wcel 2098 class class class wbr 5141 (class class class)co 7414 ℝcr 11135 0cc0 11136 < clt 11276 ≤ cle 11277 / cdiv 11899 ℝ+crp 13004 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-sep 5292 ax-nul 5299 ax-pow 5357 ax-pr 5421 ax-un 7736 ax-resscn 11193 ax-1cn 11194 ax-icn 11195 ax-addcl 11196 ax-addrcl 11197 ax-mulcl 11198 ax-mulrcl 11199 ax-mulcom 11200 ax-addass 11201 ax-mulass 11202 ax-distr 11203 ax-i2m1 11204 ax-1ne0 11205 ax-1rid 11206 ax-rnegex 11207 ax-rrecex 11208 ax-cnre 11209 ax-pre-lttri 11210 ax-pre-lttrn 11211 ax-pre-ltadd 11212 ax-pre-mulgt0 11213 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3769 df-csb 3885 df-dif 3942 df-un 3944 df-in 3946 df-ss 3956 df-nul 4317 df-if 4523 df-pw 4598 df-sn 4623 df-pr 4625 df-op 4629 df-uni 4902 df-br 5142 df-opab 5204 df-mpt 5225 df-id 5568 df-po 5582 df-so 5583 df-xp 5676 df-rel 5677 df-cnv 5678 df-co 5679 df-dm 5680 df-rn 5681 df-res 5682 df-ima 5683 df-iota 6493 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-er 8721 df-en 8961 df-dom 8962 df-sdom 8963 df-pnf 11278 df-mnf 11279 df-xr 11280 df-ltxr 11281 df-le 11282 df-sub 11474 df-neg 11475 df-div 11900 df-rp 13005 |
This theorem is referenced by: lgamgulmlem5 26981 chpo1ubb 27430 selbergb 27498 selberg2b 27501 dvdivbd 45346 |
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