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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 9369 |
. 2
| |
| 2 | 4nn 9473 |
. . 3
| |
| 3 | peano2nn 9319 |
. . 3
| |
| 4 | 2, 3 | ax-mp 5 |
. 2
|
| 5 | 1, 4 | eqeltri 2311 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-sep 4249 ax-cnex 8271 ax-resscn 8272 ax-1re 8274 ax-addrcl 8277 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4131 df-iota 5337 df-fv 5385 df-ov 6088 df-inn 9308 df-2 9366 df-3 9367 df-4 9368 df-5 9369 |
| This theorem is used by: 6nn 9475 5nn0 9588 5eluz3 9971 5ndvds3 12720 5ndvds6 12721 prm23ge5 13066 dec5dvds 13214 dec5nprm 13216 dec2nprm 13217 5prm 13246 23prm 13256 prmlem2 13257 43prm 13259 83prm 13260 317prm 13263 scandx 13558 scaid 13559 scaslid 13560 lmodstrd 13571 ipsstrd 13583 ccondx 13643 ccoid 13644 ccoslid 13645 prdsvalstrd 13673 psrvalstrd 15136 log2ublem1 16182 log2ublem2 16183 log2ublog2 16185 birthdaylog2 16189 ppiublem1 16252 ppiublem2 16253 ppiqub 16254 bclbnd 16268 bposlem3 16274 bposlem4 16275 bposlem5 16276 bposlem6 16277 bposlem8 16279 bposlem9 16280 lgsdir2lem1 16313 lgsdir2lem3 16315 |
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