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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 13059 | . 2 ⊢ (𝐴 ∈ ℝ+ → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) | |
| 2 | gt0ne0 11706 | . 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 2145 ≠ wne 2957 class class class wbr 5107 ℝcr 11126 0cc0 11127 < clt 11270 ℝ+crp 13044 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7739 ax-resscn 11184 ax-1cn 11185 ax-addrcl 11188 ax-rnegex 11198 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 |
| 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 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-opab 5172 df-mpt 5191 df-id 5554 df-po 5567 df-so 5568 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-pnf 11272 df-mnf 11273 df-ltxr 11275 df-rp 13045 |
| This theorem is used by: rprene0 13062 rpcnne0 13063 rpne0d 13093 divge1 13114 xlemul1 13344 ltdifltdiv 13897 mulmod0 13940 negmod0 13941 moddiffl 13945 modid0 13960 modmuladd 13979 modmuladdnn0 13981 2txmodxeq0 13997 rpexpcl 14146 expnlbnd 14299 rennim 15328 sqrtdiv 15354 o1fsum 15902 divrcnv 15943 rpmsubg 21645 itg2const2 25970 reeff1o 26680 logne0 26814 advlog 26889 advlogexp 26890 logcxp 26904 cxprec 26921 cxpmul 26923 abscxp 26927 cxple2 26932 dvcxp1 26975 dvcxp2 26976 dvsqrt 26977 relogbreexp 27010 relogbzexp 27011 relogbmul 27012 relogbdiv 27014 relogbexp 27015 relogbcxp 27020 relogbcxpb 27022 relogbf 27026 logbgt0b 27028 rlimcnp 27200 efrlim 27204 cxplim 27206 cxp2limlem 27210 cxploglim 27212 logdifbnd 27228 logdiflbnd 27229 logfacrlim2 27460 bposlem8 27525 vmadivsum 27716 mudivsum 27764 mulogsumlem 27765 logdivsum 27767 log2sumbnd 27778 selberg2lem 27784 selberg2 27785 pntrmax 27798 selbergr 27802 pntrlog2bndlem4 27814 pntrlog2bndlem5 27815 pntlem3 27843 padicabvcxp 27866 blocnilem 31271 nmcexi 32493 probfinmeasb 34926 probfinmeasbALTV 34927 signsplypnf 35045 logdivsqrle 35145 poimirlem29 38385 areacirclem1 38444 areacirclem4 38447 areacirc 38449 heiborlem6 38553 heiborlem7 38554 dvrelog2 42917 dvrelog3 42918 aks4d1p1p6 42926 xralrple2 46171 recnnltrp 46193 rpgtrecnn 46196 ioodvbdlimc1lem2 46747 ioodvbdlimc2lem 46749 fldivmod 48219 ceildivmod 48220 relogbmulbexp 49478 relogbdivb 49479 blenre 49491 |
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