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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 13159 | . 2 ⊢ (𝐴 ∈ ℝ+ → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) | |
| 2 | gt0ne0 11805 | . 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 2147 ≠ wne 2959 class class class wbr 5106 ℝcr 11223 0cc0 11224 < clt 11367 ℝ+crp 13144 |
| 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 7772 ax-resscn 11281 ax-1cn 11282 ax-addrcl 11285 ax-rnegex 11295 ax-cnre 11297 ax-pre-lttri 11298 ax-pre-lttrn 11299 |
| 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-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 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-er 8742 df-en 8999 df-dom 9000 df-sdom 9001 df-pnf 11369 df-mnf 11370 df-ltxr 11372 df-rp 13145 |
| This theorem is used by: rprene0 13162 rpcnne0 13163 rpne0d 13193 divge1 13214 xlemul1 13444 ltdifltdiv 13998 mulmod0 14041 negmod0 14042 moddiffl 14046 modid0 14061 modmuladd 14080 modmuladdnn0 14082 2txmodxeq0 14098 rpexpcl 14247 expnlbnd 14401 rennim 15432 sqrtdiv 15458 o1fsum 16006 divrcnv 16047 rpmsubg 21764 itg2const2 26089 reeff1o 26801 logne0 26934 advlog 27009 advlogexp 27010 logcxp 27024 cxprec 27041 cxpmul 27043 abscxp 27047 cxple2 27052 dvcxp1 27095 dvcxp2 27096 dvsqrt 27097 relogbreexp 27130 relogbzexp 27131 relogbmul 27132 relogbdiv 27134 relogbexp 27135 relogbcxp 27140 relogbcxpb 27142 relogbf 27146 logbgt0b 27148 rlimcnp 27320 efrlim 27324 cxplim 27326 cxp2limlem 27330 cxploglim 27332 logdifbnd 27348 logdiflbnd 27349 logfacrlim2 27580 bposlem8 27645 vmadivsum 27836 mudivsum 27884 mulogsumlem 27885 logdivsum 27887 log2sumbnd 27898 selberg2lem 27904 selberg2 27905 pntrmax 27918 selbergr 27922 pntrlog2bndlem4 27934 pntrlog2bndlem5 27935 pntlem3 27963 padicabvcxp 27986 blocnilem 31433 nmcexi 32655 probfinmeasb 35127 probfinmeasbALTV 35128 signsplypnf 35246 logdivsqrle 35346 poimirlem29 38758 areacirclem1 38817 areacirclem4 38820 areacirc 38822 heiborlem6 38941 heiborlem7 38942 dvrelog2 43305 dvrelog3 43306 aks4d1p1p6 43314 xralrple2 46569 recnnltrp 46591 rpgtrecnn 46594 ioodvbdlimc1lem2 47145 ioodvbdlimc2lem 47147 fldivmod 48617 ceildivmod 48618 relogbmulbexp 49876 relogbdivb 49877 blenre 49889 |
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