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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-6 9047 |
. 2
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2 | 5nn 9149 |
. . 3
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3 | peano2nn 8996 |
. . 3
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4 | 2, 3 | ax-mp 5 |
. 2
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5 | 1, 4 | eqeltri 2266 |
1
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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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 ax-sep 4148 ax-cnex 7965 ax-resscn 7966 ax-1re 7968 ax-addrcl 7971 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-int 3872 df-br 4031 df-iota 5216 df-fv 5263 df-ov 5922 df-inn 8985 df-2 9043 df-3 9044 df-4 9045 df-5 9046 df-6 9047 |
This theorem is referenced by: 7nn 9151 6nn0 9264 ef01bndlem 11902 sin01bnd 11903 cos01bnd 11904 6gcd4e2 12135 6lcm4e12 12228 vscandx 12777 vscaid 12778 vscaslid 12783 lmodstrd 12784 ipsstrd 12796 psrvalstrd 14165 sincos3rdpi 15019 pigt3 15020 ex-dvds 15292 ex-gcd 15293 |
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