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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 9101 |
. 2
| |
| 2 | 5nn 9203 |
. . 3
| |
| 3 | peano2nn 9050 |
. . 3
| |
| 4 | 2, 3 | ax-mp 5 |
. 2
|
| 5 | 1, 4 | eqeltri 2278 |
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 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-ext 2187 ax-sep 4163 ax-cnex 8018 ax-resscn 8019 ax-1re 8021 ax-addrcl 8024 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ral 2489 df-rex 2490 df-v 2774 df-un 3170 df-in 3172 df-ss 3179 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-int 3886 df-br 4046 df-iota 5233 df-fv 5280 df-ov 5949 df-inn 9039 df-2 9097 df-3 9098 df-4 9099 df-5 9100 df-6 9101 |
| This theorem is referenced by: 7nn 9205 6nn0 9318 ef01bndlem 12100 sin01bnd 12101 cos01bnd 12102 6gcd4e2 12349 6lcm4e12 12442 vscandx 13022 vscaid 13023 vscaslid 13028 lmodstrd 13029 ipsstrd 13041 psrvalstrd 14463 sincos3rdpi 15348 pigt3 15349 ex-dvds 15703 ex-gcd 15704 |
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