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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 9296 |
. 2
| |
| 2 | nnex 9042 |
. . 3
| |
| 3 | c0ex 8066 |
. . . 4
| |
| 4 | 3 | snex 4229 |
. . 3
|
| 5 | 2, 4 | unex 4488 |
. 2
|
| 6 | 1, 5 | eqeltri 2278 |
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 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-13 2178 ax-14 2179 ax-ext 2187 ax-sep 4162 ax-pow 4218 ax-pr 4253 ax-un 4480 ax-cnex 8016 ax-resscn 8017 ax-1cn 8018 ax-1re 8019 ax-icn 8020 ax-addcl 8021 ax-addrcl 8022 ax-mulcl 8023 ax-i2m1 8030 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-nf 1484 df-sb 1786 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ral 2489 df-rex 2490 df-v 2774 df-un 3170 df-in 3172 df-ss 3179 df-pw 3618 df-sn 3639 df-pr 3640 df-uni 3851 df-int 3886 df-inn 9037 df-n0 9296 |
| This theorem is referenced by: nn0ennn 10578 nnenom 10579 uzennn 10581 xnn0nnen 10582 wrdexg 11005 expcnvap0 11813 expcnvre 11814 expcnv 11815 geolim 11822 mertenslem2 11847 eftlub 12001 bitsfval 12253 bitsf 12257 1arith 12690 znnen 12769 psrval 14428 fnpsr 14429 psrbag 14431 psrbasg 14436 psrelbas 14437 psrplusgg 14440 psraddcl 14442 psr0cl 14443 psr0lid 14444 psrnegcl 14445 psrlinv 14446 psrgrp 14447 psr1clfi 14450 mplsubgfilemm 14460 mplsubgfilemcl 14461 plyval 15204 elply2 15207 plyf 15209 elplyr 15212 plyaddlem1 15219 plyaddlem 15221 plymullem 15222 plyco 15231 plycj 15233 plyrecj 15235 |
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