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Mirrors > Home > MPE Home > Th. List > reccli | Structured version Visualization version GIF version |
Description: Closure law for reciprocal. (Contributed by NM, 30-Apr-2005.) |
Ref | Expression |
---|---|
divclz.1 | ⊢ 𝐴 ∈ ℂ |
reccl.2 | ⊢ 𝐴 ≠ 0 |
Ref | Expression |
---|---|
reccli | ⊢ (1 / 𝐴) ∈ ℂ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | reccl.2 | . 2 ⊢ 𝐴 ≠ 0 | |
2 | divclz.1 | . . 3 ⊢ 𝐴 ∈ ℂ | |
3 | 2 | recclzi 11557 | . 2 ⊢ (𝐴 ≠ 0 → (1 / 𝐴) ∈ ℂ) |
4 | 1, 3 | ax-mp 5 | 1 ⊢ (1 / 𝐴) ∈ ℂ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2110 ≠ wne 2940 (class class class)co 7213 ℂcc 10727 0cc0 10729 1c1 10730 / cdiv 11489 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 ax-resscn 10786 ax-1cn 10787 ax-icn 10788 ax-addcl 10789 ax-addrcl 10790 ax-mulcl 10791 ax-mulrcl 10792 ax-mulcom 10793 ax-addass 10794 ax-mulass 10795 ax-distr 10796 ax-i2m1 10797 ax-1ne0 10798 ax-1rid 10799 ax-rnegex 10800 ax-rrecex 10801 ax-cnre 10802 ax-pre-lttri 10803 ax-pre-lttrn 10804 ax-pre-ltadd 10805 ax-pre-mulgt0 10806 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3066 df-rex 3067 df-reu 3068 df-rmo 3069 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-op 4548 df-uni 4820 df-br 5054 df-opab 5116 df-mpt 5136 df-id 5455 df-po 5468 df-so 5469 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-riota 7170 df-ov 7216 df-oprab 7217 df-mpo 7218 df-er 8391 df-en 8627 df-dom 8628 df-sdom 8629 df-pnf 10869 df-mnf 10870 df-xr 10871 df-ltxr 10872 df-le 10873 df-sub 11064 df-neg 11065 df-div 11490 |
This theorem is referenced by: halfcn 12045 halfpm6th 12051 sqrecii 13752 bpoly2 15619 bpoly3 15620 bpoly4 15621 fsumcube 15622 sinhval 15715 cos01bnd 15747 cos1bnd 15748 flodddiv4 15974 dvmptim 24867 tan4thpi 25404 sincos6thpi 25405 sincos3rdpi 25406 1cubrlem 25724 1cubr 25725 cubic 25732 bposlem8 26172 pntibndlem2 26472 ftc1anclem6 35592 |
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