| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > rereccld | Structured version Visualization version GIF version | ||
| Description: Closure law for reciprocal. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| redivcld.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| rereccld.2 | ⊢ (𝜑 → 𝐴 ≠ 0) |
| Ref | Expression |
|---|---|
| rereccld | ⊢ (𝜑 → (1 / 𝐴) ∈ ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | redivcld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 2 | rereccld.2 | . 2 ⊢ (𝜑 → 𝐴 ≠ 0) | |
| 3 | rereccl 12075 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐴 ≠ 0) → (1 / 𝐴) ∈ ℝ) | |
| 4 | 1, 2, 3 | syl2anc 596 | 1 ⊢ (𝜑 → (1 / 𝐴) ∈ ℝ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2147 ≠ wne 2959 (class class class)co 7451 ℝcr 11238 0cc0 11239 1c1 11240 / cdiv 12013 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 ax-resscn 11296 ax-1cn 11297 ax-icn 11298 ax-addcl 11299 ax-addrcl 11300 ax-mulcl 11301 ax-mulrcl 11302 ax-mulcom 11303 ax-addass 11304 ax-mulass 11305 ax-distr 11306 ax-i2m1 11307 ax-1ne0 11308 ax-1rid 11309 ax-rnegex 11310 ax-rrecex 11311 ax-cnre 11312 ax-pre-lttri 11313 ax-pre-lttrn 11314 ax-pre-ltadd 11315 ax-pre-mulgt0 11316 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 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 4841 df-uni 4873 df-br 5109 df-opab 5174 df-mpt 5193 df-id 5553 df-po 5566 df-so 5567 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-riota 7408 df-ov 7454 df-oprab 7455 df-mpo 7456 df-er 8755 df-en 9012 df-dom 9013 df-sdom 9014 df-pnf 11384 df-mnf 11385 df-xr 11386 df-ltxr 11387 df-le 11388 df-sub 11582 df-neg 11583 df-div 12014 |
| This theorem is used by: recgt0 12203 prodgt0 12204 ltdiv1 12221 ltrec 12239 lerec 12240 lediv12a 12250 nnrecl 12644 rpnnen1lem5 13149 nnge2recico01 13678 expnlbnd 14418 cnsubrg 21787 evth 25335 ncvs1 25533 reeff1o 26831 rtprmirr 27145 isosctrlem2 27204 chordthmlem2 27218 cxplim 27356 nv1 31334 nmblolbii 31458 norm1 31908 norm1exi 31909 nmbdoplbi 32683 nmcoplbi 32687 nmbdfnlbi 32708 nmcfnlbi 32711 branmfn 32764 strlem1 32909 constrdircl 34508 constrreinvcl 34515 dya2icoseg 35020 logdivsqrle 35390 readvrec2 43678 readvrec 43679 irrapxlem2 44096 irrapxlem5 44099 pell1234qrreccl 44127 pell14qrdich 44142 radcnvrat 45559 hashnzfzclim 45567 reclt0 46675 ltdiv23neg 46678 sumnnodd 46915 ioodvbdlimc1lem2 47215 ioodvbdlimc2lem 47217 stoweidlem7 47290 stoweidlem11 47294 stoweidlem14 47297 stoweidlem25 47308 stoweidlem36 47319 stoweidlem42 47325 stirlinglem10 47366 stirlinglem11 47367 stirlinglem12 47368 fourierdlem40 47430 fourierdlem78 47467 pimrecltpos 47991 pimrecltneg 48007 eenglngeehlnmlem1 50181 |
| Copyright terms: Public domain | W3C validator |