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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 9977 5ndvds3 12726 5ndvds6 12727 prm23ge5 13072 dec5dvds 13220 dec5nprm 13222 dec2nprm 13223 5prm 13252 23prm 13262 prmlem2 13263 43prm 13265 83prm 13266 317prm 13269 scandx 13564 scaid 13565 scaslid 13566 lmodstrd 13577 ipsstrd 13589 ccondx 13649 ccoid 13650 ccoslid 13651 prdsvalstrd 13679 psrvalstrd 15161 log2ublem1 16221 log2ublem2 16222 log2ublog2 16224 birthdaylog2 16228 ppiublem1 16291 ppiublem2 16292 ppiqub 16293 bclbnd 16307 bposlem3 16313 bposlem4 16314 bposlem5 16315 bposlem6 16316 bposlem8 16318 bposlem9 16319 lgsdir2lem1 16352 lgsdir2lem3 16354 |
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