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| Mirrors > Home > MPE Home > Th. List > 6nn | Structured version Visualization version GIF version | ||
| Description: 6 is a positive integer. (Contributed by Mario Carneiro, 15-Sep-2013.) |
| Ref | Expression |
|---|---|
| 6nn | ⊢ 6 ∈ ℕ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-6 12239 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5nn 12258 | . . 3 ⊢ 5 ∈ ℕ | |
| 3 | peano2nn 12177 | . . 3 ⊢ (5 ∈ ℕ → (5 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (5 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2833 | 1 ⊢ 6 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 (class class class)co 7360 1c1 11030 + caddc 11032 ℕcn 12165 5c5 12230 6c6 12231 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pr 5370 ax-un 7682 ax-1cn 11087 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7363 df-om 7811 df-2nd 7936 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-nn 12166 df-2 12235 df-3 12236 df-4 12237 df-5 12238 df-6 12239 |
| This theorem is referenced by: 7nn 12264 6nn0 12449 ef01bndlem 16142 sin01bnd 16143 cos01bnd 16144 6gcd4e2 16498 6lcm4e12 16576 83prm 17084 139prm 17085 163prm 17086 prmo6 17091 vscandx 17273 vscaid 17274 lmodstr 17279 ipsstr 17290 lt6abl 19861 psrvalstr 21906 sincos3rdpi 26494 1cubrlem 26818 quart1cl 26831 quart1lem 26832 quart1 26833 log2ub 26926 log2le1 26927 basellem5 27062 basellem8 27065 basellem9 27066 ppiublem1 27179 ppiublem2 27180 ppiub 27181 bpos1 27260 bposlem9 27269 itvndx 28519 itvid 28521 slotsinbpsd 28523 lngndxnitvndx 28525 trkgstr 28526 eengstr 29063 ex-cnv 30522 ex-dm 30524 ex-dvds 30541 ex-gcd 30542 ex-lcm 30543 hgt750lem 34811 60gcd6e6 42457 60gcd7e1 42458 12lcm5e60 42461 60lcm6e60 42462 60lcm7e420 42463 lcm6un 42471 lcmineqlem 42505 3lexlogpow5ineq1 42507 aks4d1p1p5 42528 aks4d1p1 42529 6ne0 42713 rmydioph 43460 expdiophlem2 43468 algstr 43619 139prmALT 48071 31prm 48072 127prm 48074 nprmdvdsfacm1lem4 48098 nprmdvdsfacm1 48099 ppivalnnnprmge6 48101 6even 48199 gbowge7 48251 stgoldbwt 48264 sbgoldbwt 48265 mogoldbb 48273 sbgoldbo 48275 nnsum3primesle9 48282 nnsum4primeseven 48288 wtgoldbnnsum4prm 48290 bgoldbnnsum3prm 48292 zlmodzxzequa 48984 zlmodzxznm 48985 zlmodzxzequap 48987 zlmodzxzldeplem3 48990 zlmodzxzldep 48992 ldepsnlinclem2 48994 ldepsnlinc 48996 |
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