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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 9408 |
. 2
| |
| 2 | nnex 9154 |
. . 3
| |
| 3 | c0ex 8178 |
. . . 4
| |
| 4 | 3 | snex 4277 |
. . 3
|
| 5 | 2, 4 | unex 4540 |
. 2
|
| 6 | 1, 5 | eqeltri 2303 |
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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2203 ax-14 2204 ax-ext 2212 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 ax-cnex 8128 ax-resscn 8129 ax-1cn 8130 ax-1re 8131 ax-icn 8132 ax-addcl 8133 ax-addrcl 8134 ax-mulcl 8135 ax-i2m1 8142 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1810 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ral 2514 df-rex 2515 df-v 2803 df-un 3203 df-in 3205 df-ss 3212 df-pw 3655 df-sn 3676 df-pr 3677 df-uni 3895 df-int 3930 df-inn 9149 df-n0 9408 |
| This theorem is referenced by: nn0ennn 10701 nnenom 10702 uzennn 10704 xnn0nnen 10705 wrdexg 11133 expcnvap0 12086 expcnvre 12087 expcnv 12088 geolim 12095 mertenslem2 12120 eftlub 12274 bitsfval 12526 bitsf 12530 1arith 12963 znnen 13042 psrval 14704 fnpsr 14705 psrbag 14707 psrbasg 14717 psrelbas 14718 psrplusgg 14721 psraddcl 14723 psr0cl 14724 psr0lid 14725 psrnegcl 14726 psrlinv 14727 psrgrp 14728 psr1clfi 14731 mplsubgfilemm 14741 mplsubgfilemcl 14742 plyval 15485 elply2 15488 plyf 15490 elplyr 15493 plyaddlem1 15500 plyaddlem 15502 plymullem 15503 plyco 15512 plycj 15514 plyrecj 15516 clwwlknonmpo 16308 depindlem1 16386 depindlem2 16387 |
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