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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 9299 |
. 2
| |
| 2 | 4nn 9401 |
. . 3
| |
| 3 | peano2nn 9249 |
. . 3
| |
| 4 | 2, 3 | ax-mp 5 |
. 2
|
| 5 | 1, 4 | eqeltri 2305 |
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 2214 ax-sep 4228 ax-cnex 8218 ax-resscn 8219 ax-1re 8221 ax-addrcl 8224 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-int 3950 df-br 4110 df-iota 5312 df-fv 5360 df-ov 6053 df-inn 9238 df-2 9296 df-3 9297 df-4 9298 df-5 9299 |
| This theorem is referenced by: 6nn 9403 5nn0 9516 5eluz3 9893 5ndvds3 12620 5ndvds6 12621 prm23ge5 12962 dec5dvds 13110 dec5nprm 13112 dec2nprm 13113 scandx 13364 scaid 13365 scaslid 13366 lmodstrd 13377 ipsstrd 13389 ccondx 13449 ccoid 13450 ccoslid 13451 prdsvalstrd 13484 psrvalstrd 14816 lgsdir2lem1 15901 lgsdir2lem3 15903 |
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