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| Mirrors > Home > MPE Home > Th. List > divdiv1d | Structured version Visualization version GIF version | ||
| Description: Division into a fraction. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| div1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| divcld.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| divmuld.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| divmuld.4 | ⊢ (𝜑 → 𝐵 ≠ 0) |
| divdiv23d.5 | ⊢ (𝜑 → 𝐶 ≠ 0) |
| Ref | Expression |
|---|---|
| divdiv1d | ⊢ (𝜑 → ((𝐴 / 𝐵) / 𝐶) = (𝐴 / (𝐵 · 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | div1d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | divcld.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 3 | divmuld.4 | . 2 ⊢ (𝜑 → 𝐵 ≠ 0) | |
| 4 | divmuld.3 | . 2 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 5 | divdiv23d.5 | . 2 ⊢ (𝜑 → 𝐶 ≠ 0) | |
| 6 | divdiv1 11857 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ (𝐶 ∈ ℂ ∧ 𝐶 ≠ 0)) → ((𝐴 / 𝐵) / 𝐶) = (𝐴 / (𝐵 · 𝐶))) | |
| 7 | 1, 2, 3, 4, 5, 6 | syl122anc 1382 | 1 ⊢ (𝜑 → ((𝐴 / 𝐵) / 𝐶) = (𝐴 / (𝐵 · 𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 (class class class)co 7360 ℂcc 11027 0cc0 11029 · cmul 11034 / cdiv 11798 |
| 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 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 |
| 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 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5519 df-po 5532 df-so 5533 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-div 11799 |
| This theorem is referenced by: discr 14193 hashf1 14410 bcfallfac 16000 eftlub 16067 tanval2 16091 sinhval 16112 sqrt2irrlem 16206 bitsp1 16391 4sqlem7 16906 4sqlem10 16909 uniioombl 25566 dvrec 25932 dvsincos 25958 dvcvx 25997 taylthlem2 26351 taylthlem2OLD 26352 mcubic 26824 cubic2 26825 quart1lem 26832 quart1 26833 log2cnv 26921 log2tlbnd 26922 birthdaylem2 26929 efrlim 26946 efrlimOLD 26947 bcmono 27254 m1lgs 27365 chto1lb 27455 vmalogdivsum2 27515 selberg3lem1 27534 selberg4lem1 27537 selberg4 27538 selberg34r 27548 pntrlog2bndlem2 27555 pntrlog2bndlem4 27557 pntpbnd2 27564 pntibndlem2 27568 pntlemg 27575 quad3d 32837 nnproddivdvdsd 42453 dvrelogpow2b 42521 aks4d1p1p7 42527 bcled 42631 bcle2d 42632 irrapxlem5 43272 divdiv3d 45807 mccllem 46045 clim1fr1 46049 sinaover2ne0 46314 dvnprodlem2 46393 wallispi2lem1 46517 stirlinglem3 46522 stirlinglem4 46523 stirlinglem7 46526 stirlinglem15 46534 dirker2re 46538 dirkerdenne0 46539 dirkertrigeqlem2 46545 dirkertrigeqlem3 46546 dirkertrigeq 46547 dirkercncflem1 46549 dirkercncflem2 46550 dirkercncflem4 46552 fourierdlem56 46608 fourierdlem66 46618 sqwvfourb 46675 fouriersw 46677 itscnhlc0xyqsol 49253 |
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