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| Mirrors > Home > MPE Home > Th. List > rpne0 | Structured version Visualization version GIF version | ||
| Description: A positive real is nonzero. (Contributed by NM, 18-Jul-2008.) |
| Ref | Expression |
|---|---|
| rpne0 | ⊢ (𝐴 ∈ ℝ+ → 𝐴 ≠ 0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpregt0 13135 | . 2 ⊢ (𝐴 ∈ ℝ+ → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) | |
| 2 | gt0ne0 11781 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 0 < 𝐴) → 𝐴 ≠ 0) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝐴 ∈ ℝ+ → 𝐴 ≠ 0) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2144 ≠ wne 2955 class class class wbr 5102 ℝcr 11199 0cc0 11200 < clt 11343 ℝ+crp 13120 |
| 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 11257 ax-1cn 11258 ax-addrcl 11261 ax-rnegex 11271 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 |
| 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-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-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-pnf 11345 df-mnf 11346 df-ltxr 11348 df-rp 13121 |
| This theorem is used by: rprene0 13138 rpcnne0 13139 rpne0d 13169 divge1 13190 xlemul1 13420 ltdifltdiv 13974 mulmod0 14017 negmod0 14018 moddiffl 14022 modid0 14037 modmuladd 14056 modmuladdnn0 14058 2txmodxeq0 14074 rpexpcl 14223 expnlbnd 14377 rennim 15406 sqrtdiv 15432 o1fsum 15980 divrcnv 16021 rpmsubg 21737 itg2const2 26062 reeff1o 26774 logne0 26907 advlog 26982 advlogexp 26983 logcxp 26997 cxprec 27014 cxpmul 27016 abscxp 27020 cxple2 27025 dvcxp1 27068 dvcxp2 27069 dvsqrt 27070 relogbreexp 27103 relogbzexp 27104 relogbmul 27105 relogbdiv 27107 relogbexp 27108 relogbcxp 27113 relogbcxpb 27115 relogbf 27119 logbgt0b 27121 rlimcnp 27293 efrlim 27297 cxplim 27299 cxp2limlem 27303 cxploglim 27305 logdifbnd 27321 logdiflbnd 27322 logfacrlim2 27553 bposlem8 27618 vmadivsum 27809 mudivsum 27857 mulogsumlem 27858 logdivsum 27860 log2sumbnd 27871 selberg2lem 27877 selberg2 27878 pntrmax 27891 selbergr 27895 pntrlog2bndlem4 27907 pntrlog2bndlem5 27908 pntlem3 27936 padicabvcxp 27959 blocnilem 31406 nmcexi 32628 probfinmeasb 35060 probfinmeasbALTV 35061 signsplypnf 35179 logdivsqrle 35279 poimirlem29 38568 areacirclem1 38627 areacirclem4 38630 areacirc 38632 heiborlem6 38751 heiborlem7 38752 dvrelog2 43115 dvrelog3 43116 aks4d1p1p6 43124 xralrple2 46366 recnnltrp 46388 rpgtrecnn 46391 ioodvbdlimc1lem2 46942 ioodvbdlimc2lem 46944 fldivmod 48414 ceildivmod 48415 relogbmulbexp 49673 relogbdivb 49674 blenre 49686 |
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