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| Mirrors > Home > MPE Home > Th. List > ltdiv1dd | Structured version Visualization version GIF version | ||
| Description: Division of both sides of 'less than' by a positive number. (Contributed by Mario Carneiro, 30-May-2016.) |
| Ref | Expression |
|---|---|
| ltmul1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| ltmul1d.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
| ltmul1d.3 | ⊢ (𝜑 → 𝐶 ∈ ℝ+) |
| ltdiv1dd.4 | ⊢ (𝜑 → 𝐴 < 𝐵) |
| Ref | Expression |
|---|---|
| ltdiv1dd | ⊢ (𝜑 → (𝐴 / 𝐶) < (𝐵 / 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltdiv1dd.4 | . 2 ⊢ (𝜑 → 𝐴 < 𝐵) | |
| 2 | ltmul1d.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 3 | ltmul1d.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
| 4 | ltmul1d.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ+) | |
| 5 | 2, 3, 4 | ltdiv1d 13209 | . 2 ⊢ (𝜑 → (𝐴 < 𝐵 ↔ (𝐴 / 𝐶) < (𝐵 / 𝐶))) |
| 6 | 1, 5 | mpbid 235 | 1 ⊢ (𝜑 → (𝐴 / 𝐶) < (𝐵 / 𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 class class class wbr 5102 (class class class)co 7420 ℝcr 11199 < clt 11343 / cdiv 11973 ℝ+crp 13120 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-po 5558 df-so 5559 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-div 11974 df-rp 13121 |
| This theorem is used by: mul2lt0rlt0 13224 aaliou 26665 cos02pilt1 26854 chebbnd1lem2 27797 pntlemb 27924 dya2icoseg 34909 3lexlogpow2ineq2 43110 fltnlta 43675 hashnzfzclim 45306 0ellimcdiv 46659 dirkercncflem1 47113 dirkercncflem4 47116 fourierdlem10 47127 fourierdlem19 47136 fourierdlem24 47141 fourierdlem42 47159 fourierdlem62 47178 fourierdlem65 47181 fourierdlem79 47195 dignn0flhalflem1 49727 |
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