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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 12065 | . 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 2146 ≠ wne 2959 (class class class)co 7430 ℂcc 11211 0cc0 11213 / cdiv 11986 |
| 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 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7761 ax-resscn 11270 ax-1cn 11271 ax-icn 11272 ax-addcl 11273 ax-addrcl 11274 ax-mulcl 11275 ax-mulrcl 11276 ax-mulcom 11277 ax-addass 11278 ax-mulass 11279 ax-distr 11280 ax-i2m1 11281 ax-1ne0 11282 ax-1rid 11283 ax-rnegex 11284 ax-rrecex 11285 ax-cnre 11286 ax-pre-lttri 11287 ax-pre-lttrn 11288 ax-pre-ltadd 11289 ax-pre-mulgt0 11290 |
| 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 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6501 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-er 8731 df-en 8988 df-dom 8989 df-sdom 8990 df-pnf 11358 df-mnf 11359 df-xr 11360 df-ltxr 11361 df-le 11362 df-sub 11556 df-neg 11557 df-div 11987 |
| This theorem is used by: divcan1i 12074 halfpm6th 12581 sqdivi 14341 bpoly3 16239 bpoly4 16240 cos1bnd 16370 cospi 26816 sincosq1eq 26856 tan4thpi 26858 sincos6thpi 26859 sincos3rdpi 26860 cxpsqrt 27046 1cubr 27185 quart1cl 27197 quart1lem 27198 quart1 27199 dvatan 27278 log2cnv 27287 log2tlbnd 27288 bclbnd 27622 bposlem8 27633 bposlem9 27634 dp20h 33501 dpmul10 33517 dpmul100 33519 dp3mul10 33520 dpexpp1 33530 dpadd2 33532 cos9thpiminplylem4 34473 cos9thpiminplylem5 34474 quad3 36559 areacirc 38774 25or6to4 43399 cxpi11d 43537 tanhalfpim 43543 tan3rdpi 43546 sin2t3rdpi 43547 cos2t3rdpi 43548 sin4t3rdpi 43549 cos4t3rdpi 43550 areaquad 44361 lhe4.4ex1a 45456 stoweidlem13 47165 stoweidlem26 47178 wallispilem4 47220 wallispi 47222 dirkerper 47248 fourierdlem103 47361 fourierswlem 47382 fouriersw 47383 cos5t 48067 goldrasin 48071 goldracos5teq 48074 goldratmolem2 48075 goldratmolem3 48076 |
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