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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 9370 |
. 2
| |
| 2 | nnex 9116 |
. . 3
| |
| 3 | c0ex 8140 |
. . . 4
| |
| 4 | 3 | snex 4269 |
. . 3
|
| 5 | 2, 4 | unex 4532 |
. 2
|
| 6 | 1, 5 | eqeltri 2302 |
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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-cnex 8090 ax-resscn 8091 ax-1cn 8092 ax-1re 8093 ax-icn 8094 ax-addcl 8095 ax-addrcl 8096 ax-mulcl 8097 ax-i2m1 8104 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2801 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-uni 3889 df-int 3924 df-inn 9111 df-n0 9370 |
| This theorem is referenced by: nn0ennn 10655 nnenom 10656 uzennn 10658 xnn0nnen 10659 wrdexg 11082 expcnvap0 12013 expcnvre 12014 expcnv 12015 geolim 12022 mertenslem2 12047 eftlub 12201 bitsfval 12453 bitsf 12457 1arith 12890 znnen 12969 psrval 14630 fnpsr 14631 psrbag 14633 psrbasg 14638 psrelbas 14639 psrplusgg 14642 psraddcl 14644 psr0cl 14645 psr0lid 14646 psrnegcl 14647 psrlinv 14648 psrgrp 14649 psr1clfi 14652 mplsubgfilemm 14662 mplsubgfilemcl 14663 plyval 15406 elply2 15409 plyf 15411 elplyr 15414 plyaddlem1 15421 plyaddlem 15423 plymullem 15424 plyco 15433 plycj 15435 plyrecj 15437 |
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