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| Mirrors > Home > ILE Home > Th. List > 5nn | Unicode version | ||
| Description: 5 is a positive integer. (Contributed by Mario Carneiro, 15-Sep-2013.) |
| Ref | Expression |
|---|---|
| 5nn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-5 9264 |
. 2
| |
| 2 | 4nn 9366 |
. . 3
| |
| 3 | peano2nn 9214 |
. . 3
| |
| 4 | 2, 3 | ax-mp 5 |
. 2
|
| 5 | 1, 4 | eqeltri 2304 |
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-ext 2213 ax-sep 4212 ax-cnex 8183 ax-resscn 8184 ax-1re 8186 ax-addrcl 8189 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-br 4094 df-iota 5293 df-fv 5341 df-ov 6031 df-inn 9203 df-2 9261 df-3 9262 df-4 9263 df-5 9264 |
| This theorem is referenced by: 6nn 9368 5nn0 9481 5eluz3 9856 5ndvds3 12575 5ndvds6 12576 prm23ge5 12917 dec5dvds 13065 dec5nprm 13067 dec2nprm 13068 scandx 13314 scaid 13315 scaslid 13316 lmodstrd 13327 ipsstrd 13339 ccondx 13399 ccoid 13400 ccoslid 13401 prdsvalstrd 13434 psrvalstrd 14764 lgsdir2lem1 15847 lgsdir2lem3 15849 |
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