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| Mirrors > Home > ILE Home > Th. List > 2ne0 | Unicode version | ||
| Description: The number 2 is nonzero. (Contributed by NM, 9-Nov-2007.) |
| Ref | Expression |
|---|---|
| 2ne0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2re 9303 |
. 2
| |
| 2 | 2pos 9324 |
. 2
| |
| 3 | 1, 2 | gt0ne0ii 8757 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2205 ax-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 ax-setind 4658 ax-cnex 8214 ax-resscn 8215 ax-1cn 8216 ax-1re 8217 ax-icn 8218 ax-addcl 8219 ax-addrcl 8220 ax-mulcl 8221 ax-addcom 8223 ax-addass 8225 ax-i2m1 8228 ax-0lt1 8229 ax-0id 8231 ax-rnegex 8232 ax-pre-ltirr 8235 ax-pre-lttrn 8237 ax-pre-ltadd 8239 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2814 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-br 4109 df-opab 4171 df-xp 4754 df-iota 5311 df-fv 5359 df-ov 6052 df-pnf 8306 df-mnf 8307 df-ltxr 8309 df-2 9292 |
| This theorem is referenced by: 0ne2 9439 2cnne0 9443 2rene0 9444 zeo3 12547 evend2 12568 oddp1d2 12569 3lcm2e6woprm 12776 2logb9irrALT 15826 lgseisenlem1 15930 lgsquad2lem1 15941 lgsquad3 15944 m1lgs 15945 usgrexmpldifpr 16231 konigsberglem1 16470 apdiff 16819 qdiff 16820 |
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