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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 9331 |
. 2
| |
| 2 | nnex 9077 |
. . 3
| |
| 3 | c0ex 8101 |
. . . 4
| |
| 4 | 3 | snex 4245 |
. . 3
|
| 5 | 2, 4 | unex 4506 |
. 2
|
| 6 | 1, 5 | eqeltri 2280 |
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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2180 ax-14 2181 ax-ext 2189 ax-sep 4178 ax-pow 4234 ax-pr 4269 ax-un 4498 ax-cnex 8051 ax-resscn 8052 ax-1cn 8053 ax-1re 8054 ax-icn 8055 ax-addcl 8056 ax-addrcl 8057 ax-mulcl 8058 ax-i2m1 8065 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ral 2491 df-rex 2492 df-v 2778 df-un 3178 df-in 3180 df-ss 3187 df-pw 3628 df-sn 3649 df-pr 3650 df-uni 3865 df-int 3900 df-inn 9072 df-n0 9331 |
| This theorem is referenced by: nn0ennn 10615 nnenom 10616 uzennn 10618 xnn0nnen 10619 wrdexg 11042 expcnvap0 11928 expcnvre 11929 expcnv 11930 geolim 11937 mertenslem2 11962 eftlub 12116 bitsfval 12368 bitsf 12372 1arith 12805 znnen 12884 psrval 14543 fnpsr 14544 psrbag 14546 psrbasg 14551 psrelbas 14552 psrplusgg 14555 psraddcl 14557 psr0cl 14558 psr0lid 14559 psrnegcl 14560 psrlinv 14561 psrgrp 14562 psr1clfi 14565 mplsubgfilemm 14575 mplsubgfilemcl 14576 plyval 15319 elply2 15322 plyf 15324 elplyr 15327 plyaddlem1 15334 plyaddlem 15336 plymullem 15337 plyco 15346 plycj 15348 plyrecj 15350 |
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