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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 9517 |
. 2
| |
| 2 | nnex 9263 |
. . 3
| |
| 3 | c0ex 8284 |
. . . 4
| |
| 4 | 3 | snex 4303 |
. . 3
|
| 5 | 2, 4 | unex 4567 |
. 2
|
| 6 | 1, 5 | eqeltri 2307 |
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 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-cnex 8234 ax-resscn 8235 ax-1cn 8236 ax-1re 8237 ax-icn 8238 ax-addcl 8239 ax-addrcl 8240 ax-mulcl 8241 ax-i2m1 8248 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-uni 3920 df-int 3955 df-inn 9258 df-n0 9517 |
| This theorem is referenced by: nn0ennn 10822 nnenom 10823 uzennn 10825 xnn0nnen 10826 wrdexg 11263 expcnvap0 12216 expcnvre 12217 expcnv 12218 geolim 12225 mertenslem2 12250 eftlub 12404 bitsfval 12656 bitsf 12660 1arith 13093 znnen 13236 psrval 14943 fnpsr 14944 psrbag 14946 psrbagaddclfi 14954 psrbasg 14958 psrelbas 14959 psrplusgg 14962 psraddcl 14964 psr0cl 14965 psr0lid 14966 psrnegcl 14967 psrlinv 14968 psrgrp 14969 psr1clfi 14972 mplsubgfilemm 14982 mplsubgfilemcl 14983 plyval 15726 elply2 15729 plyf 15731 elplyr 15734 plyaddlem1 15741 plyaddlem 15743 plymullem 15744 plyco 15753 plycj 15755 plyrecj 15757 clwwlknonmpo 16552 depindlem1 16630 depindlem2 16631 |
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