| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > rerpdivcl | Structured version Visualization version GIF version | ||
| Description: Closure law for division of a real by a positive real. (Contributed by NM, 10-Nov-2008.) |
| Ref | Expression |
|---|---|
| rerpdivcl | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ+) → (𝐴 / 𝐵) ∈ ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rprene0 13165 | . 2 ⊢ (𝐵 ∈ ℝ+ → (𝐵 ∈ ℝ ∧ 𝐵 ≠ 0)) | |
| 2 | redivcl 12063 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐵 ≠ 0) → (𝐴 / 𝐵) ∈ ℝ) | |
| 3 | 2 | 3expb 1138 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ (𝐵 ∈ ℝ ∧ 𝐵 ≠ 0)) → (𝐴 / 𝐵) ∈ ℝ) |
| 4 | 1, 3 | sylan2 605 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ+) → (𝐴 / 𝐵) ∈ ℝ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2147 ≠ wne 2959 (class class class)co 7443 ℝcr 11226 0cc0 11227 / cdiv 12000 ℝ+crp 13147 |
| 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 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 ax-pre-mulgt0 11304 |
| 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 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 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-er 8745 df-en 9002 df-dom 9003 df-sdom 9004 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-le 11376 df-sub 11570 df-neg 11571 df-div 12001 df-rp 13148 |
| This theorem is used by: ledivge1le 13220 rerpdivcld 13222 icccntr 13650 refldivcl 13990 fldivle 13998 ltdifltdiv 14001 modvalr 14039 flpmodeq 14041 mod0 14043 negmod0 14045 modlt 14047 moddiffl 14049 moddifz 14050 modid 14063 modcyc 14073 modadd1 14075 modmul1 14094 moddi 14109 modsubdir 14110 modirr 14112 sqrtdiv 15461 divrcnv 16050 gexdvds 19828 aaliou3lem8 26702 logdivlt 26979 cxp2limlem 27333 harmonicbnd4 27368 logexprlim 27582 bposlem7 27647 bposlem9 27649 chebbnd1lem3 27828 chebbnd1 27829 chto1ub 27833 chpo1ub 27837 vmadivsum 27839 rplogsumlem1 27841 dchrvmasumlema 27857 dchrvmasumiflem1 27858 dchrisum0fno1 27868 mulogsumlem 27888 logdivsum 27890 mulog2sumlem1 27891 selberg2lem 27907 selberg3lem1 27914 pntrmax 27921 pntpbnd1a 27942 pntpbnd1 27943 pntpbnd2 27944 pntpbnd 27945 pntibndlem3 27949 pntlem3 27966 pntleml 27968 pnt2 27970 subfacval3 36121 heiborlem6 38942 fldivmod 48619 ceildivmod 48620 |
| Copyright terms: Public domain | W3C validator |