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| Mirrors > Home > ILE Home > Th. List > 6nn | Unicode version | ||
| Description: 6 is a positive integer. (Contributed by Mario Carneiro, 15-Sep-2013.) |
| Ref | Expression |
|---|---|
| 6nn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-6 9184 |
. 2
| |
| 2 | 5nn 9286 |
. . 3
| |
| 3 | peano2nn 9133 |
. . 3
| |
| 4 | 2, 3 | ax-mp 5 |
. 2
|
| 5 | 1, 4 | eqeltri 2302 |
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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 ax-sep 4202 ax-cnex 8101 ax-resscn 8102 ax-1re 8104 ax-addrcl 8107 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2801 df-un 3201 df-in 3203 df-ss 3210 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-int 3924 df-br 4084 df-iota 5278 df-fv 5326 df-ov 6010 df-inn 9122 df-2 9180 df-3 9181 df-4 9182 df-5 9183 df-6 9184 |
| This theorem is referenced by: 7nn 9288 6nn0 9401 ef01bndlem 12283 sin01bnd 12284 cos01bnd 12285 6gcd4e2 12532 6lcm4e12 12625 vscandx 13206 vscaid 13207 vscaslid 13212 lmodstrd 13213 ipsstrd 13225 psrvalstrd 14648 sincos3rdpi 15533 pigt3 15534 ex-dvds 16177 ex-gcd 16178 |
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