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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 9375 |
. 2
| |
| 2 | 4nn 9479 |
. . 3
| |
| 3 | peano2nn 9325 |
. . 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 4251 ax-cnex 8276 ax-resscn 8277 ax-1re 8279 ax-addrcl 8282 |
| 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 4132 df-iota 5340 df-fv 5388 df-ov 6091 df-inn 9314 df-2 9372 df-3 9373 df-4 9374 df-5 9375 |
| This theorem is used by: 6nn 9481 5nn0 9594 5eluz3 9976 5ndvds3 12725 5ndvds6 12726 prm23ge5 13071 dec5dvds 13219 dec5nprm 13221 dec2nprm 13222 5prm 13251 23prm 13261 prmlem2 13262 43prm 13264 83prm 13265 317prm 13268 scandx 13563 scaid 13564 scaslid 13565 lmodstrd 13576 ipsstrd 13588 ccondx 13648 ccoid 13649 ccoslid 13650 prdsvalstrd 13678 psrvalstrd 15162 log2ublem1 16238 log2ublem2 16239 log2ublog2 16241 birthdaylog2 16245 ppiublem1 16308 ppiublem2 16309 ppiqub 16310 bclbnd 16324 bposlem3 16330 bposlem4 16331 bposlem5 16332 bposlem6 16333 bposlem8 16335 bposlem9 16336 lgsdir2lem1 16369 lgsdir2lem3 16371 |
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