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| Mirrors > Home > ILE Home > Th. List > nn0ex | Unicode version | ||
| Description: The set of nonnegative integers exists. (Contributed by NM, 18-Jul-2004.) |
| Ref | Expression |
|---|---|
| nn0ex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-n0 9493 |
. 2
| |
| 2 | nnex 9239 |
. . 3
| |
| 3 | c0ex 8264 |
. . . 4
| |
| 4 | 3 | snex 4297 |
. . 3
|
| 5 | 2, 4 | unex 4561 |
. 2
|
| 6 | 1, 5 | eqeltri 2305 |
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-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-cnex 8214 ax-resscn 8215 ax-1cn 8216 ax-1re 8217 ax-icn 8218 ax-addcl 8219 ax-addrcl 8220 ax-mulcl 8221 ax-i2m1 8228 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2814 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-uni 3914 df-int 3949 df-inn 9234 df-n0 9493 |
| This theorem is referenced by: nn0ennn 10791 nnenom 10792 uzennn 10794 xnn0nnen 10795 wrdexg 11228 expcnvap0 12181 expcnvre 12182 expcnv 12183 geolim 12190 mertenslem2 12215 eftlub 12369 bitsfval 12621 bitsf 12625 1arith 13058 znnen 13138 psrval 14801 fnpsr 14802 psrbag 14804 psrbagaddclfi 14812 psrbasg 14816 psrelbas 14817 psrplusgg 14820 psraddcl 14822 psr0cl 14823 psr0lid 14824 psrnegcl 14825 psrlinv 14826 psrgrp 14827 psr1clfi 14830 mplsubgfilemm 14840 mplsubgfilemcl 14841 plyval 15584 elply2 15587 plyf 15589 elplyr 15592 plyaddlem1 15599 plyaddlem 15601 plymullem 15602 plyco 15611 plycj 15613 plyrecj 15615 clwwlknonmpo 16410 depindlem1 16488 depindlem2 16489 |
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