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| Mirrors > Home > MPE Home > Th. List > divcli | Structured version Visualization version GIF version | ||
| Description: Closure law for division. (Contributed by NM, 2-Feb-1995.) (Revised by Mario Carneiro, 17-Feb-2014.) |
| Ref | Expression |
|---|---|
| divclz.1 | ⊢ 𝐴 ∈ ℂ |
| divclz.2 | ⊢ 𝐵 ∈ ℂ |
| divcl.3 | ⊢ 𝐵 ≠ 0 |
| Ref | Expression |
|---|---|
| divcli | ⊢ (𝐴 / 𝐵) ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | divcl.3 | . 2 ⊢ 𝐵 ≠ 0 | |
| 2 | divclz.1 | . . 3 ⊢ 𝐴 ∈ ℂ | |
| 3 | divclz.2 | . . 3 ⊢ 𝐵 ∈ ℂ | |
| 4 | 2, 3 | divclzi 12053 | . 2 ⊢ (𝐵 ≠ 0 → (𝐴 / 𝐵) ∈ ℂ) |
| 5 | 1, 4 | ax-mp 5 | 1 ⊢ (𝐴 / 𝐵) ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2144 ≠ wne 2955 (class class class)co 7420 ℂcc 11199 0cc0 11201 / cdiv 11974 |
| 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 11258 ax-1cn 11259 ax-icn 11260 ax-addcl 11261 ax-addrcl 11262 ax-mulcl 11263 ax-mulrcl 11264 ax-mulcom 11265 ax-addass 11266 ax-mulass 11267 ax-distr 11268 ax-i2m1 11269 ax-1ne0 11270 ax-1rid 11271 ax-rnegex 11272 ax-rrecex 11273 ax-cnre 11274 ax-pre-lttri 11275 ax-pre-lttrn 11276 ax-pre-ltadd 11277 ax-pre-mulgt0 11278 |
| 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 8718 df-en 8975 df-dom 8976 df-sdom 8977 df-pnf 11346 df-mnf 11347 df-xr 11348 df-ltxr 11349 df-le 11350 df-sub 11544 df-neg 11545 df-div 11975 |
| This theorem is used by: divcan1i 12062 halfpm6th 12569 sqdivi 14329 bpoly3 16225 bpoly4 16226 cos1bnd 16356 cospi 26802 sincosq1eq 26842 tan4thpi 26844 sincos6thpi 26845 sincos3rdpi 26846 cxpsqrt 27032 1cubr 27171 quart1cl 27183 quart1lem 27184 quart1 27185 dvatan 27264 log2cnv 27273 log2tlbnd 27274 bclbnd 27608 bposlem8 27619 bposlem9 27620 dp20h 33488 dpmul10 33504 dpmul100 33506 dp3mul10 33507 dpexpp1 33517 dpadd2 33519 cos9thpiminplylem4 34460 cos9thpiminplylem5 34461 quad3 36478 areacirc 38675 25or6to4 43300 cxpi11d 43438 tanhalfpim 43444 tan3rdpi 43447 sin2t3rdpi 43448 cos2t3rdpi 43449 sin4t3rdpi 43450 cos4t3rdpi 43451 areaquad 44262 lhe4.4ex1a 45357 stoweidlem13 47067 stoweidlem26 47080 wallispilem4 47122 wallispi 47124 dirkerper 47150 fourierdlem103 47263 fourierswlem 47284 fouriersw 47285 cos5t 47969 goldrasin 47973 goldracos5teq 47976 goldratmolem2 47977 goldratmolem3 47978 |
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