| Metamath Proof Explorer |
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Related theorems Unicode version |
| Description: If a set has elements, it is not empty. |
| Ref | Expression |
|---|---|
| ne0i |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | n0i 2288 |
. 2
| |
| 2 | df-ne 1590 |
. 2
| |
| 3 | 1, 2 | sylibr 200 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: vne0 2290 inelcm 2327 rexn0 2360 snnz 2462 prnz 2463 tpnz 2464 exss 2775 onnmin 3021 ord0eln0 3029 onne0 3039 onnev 3248 elfvdm 3753 isofrlem 3907 f1oweALT 3912 oe1m 4185 oawordeulem 4194 oa00 4199 oarec 4202 omord 4205 oewordri 4225 oeworde 4226 oeordsuc 4227 oelim2 4228 unblem1 4551 inf1 4616 noinfep 4650 zfregs 4657 aceq5lem2 4746 kmlem6 4780 alephval2 4913 addclpi 5032 mulclpi 5033 indpi 5046 1pr 5129 infmrcl 6071 flval3t 6241 eliooxrt 6388 iccsupr 6399 fseqsupcl 6526 fseqsupub 6527 seq1ublem 6911 climsup 7155 caucvglem2 7158 cvgcmpub 7185 infcvgaux1 7219 ruclem33 7543 clscld 7680 qdensere 7748 cnpco 7766 blne0 7843 caun0 7942 lmsslem 7949 bcth 8029 ghgrpilem4 8132 nvo00 8420 nmorepnf 8427 ubthlem6 8530 pilem2 8667 pilem3 8668 axgroth3 8774 projlem8 9188 shintclt 9289 chintclt 9291 hsupval2t 9295 nmoprepnf 9789 nmfnrepnf 9802 hine 10696 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-10 968 ax-12 970 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 983 df-sb 1174 df-clab 1467 df-cleq 1472 df-clel 1475 df-ne 1590 df-v 1815 df-dif 2052 df-nul 2284 |