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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 2835 | 1 ⊢ 6 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2119 (class class class)co 7356 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 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-sep 5218 ax-nul 5228 ax-pr 5362 ax-un 7678 ax-1cn 11087 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-ral 3054 df-rex 3064 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3903 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-iun 4923 df-br 5073 df-opab 5135 df-mpt 5154 df-tr 5180 df-id 5513 df-eprel 5518 df-po 5526 df-so 5527 df-fr 5571 df-we 5573 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-pred 6252 df-ord 6313 df-on 6314 df-lim 6315 df-suc 6316 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-ov 7359 df-om 7807 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 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 21891 sincos3rdpi 26499 1cubrlem 26823 quart1cl 26836 quart1lem 26837 quart1 26838 log2ub 26931 log2le1 26932 basellem5 27066 basellem8 27069 basellem9 27070 ppiublem1 27183 ppiublem2 27184 ppiub 27185 bpos1 27264 bposlem9 27273 itvndx 28523 itvid 28525 slotsinbpsd 28527 lngndxnitvndx 28529 trkgstr 28530 eengstr 29067 ex-cnv 30525 ex-dm 30527 ex-dvds 30544 ex-gcd 30545 ex-lcm 30546 hgt750lem 34835 60gcd6e6 42489 60gcd7e1 42490 12lcm5e60 42493 60lcm6e60 42494 60lcm7e420 42495 lcm6un 42503 lcmineqlem 42537 3lexlogpow5ineq1 42539 aks4d1p1p5 42560 aks4d1p1 42561 6ne0 42744 rmydioph 43459 expdiophlem2 43467 algstr 43618 goldratmolem2 47349 139prmALT 48074 31prm 48075 127prm 48077 nprmdvdsfacm1lem4 48101 nprmdvdsfacm1 48102 ppivalnnnprmge6 48104 6even 48202 gbowge7 48254 stgoldbwt 48267 sbgoldbwt 48268 mogoldbb 48276 sbgoldbo 48278 nnsum3primesle9 48285 nnsum4primeseven 48291 wtgoldbnnsum4prm 48293 bgoldbnnsum3prm 48295 zlmodzxzequa 48987 zlmodzxznm 48988 zlmodzxzequap 48990 zlmodzxzldeplem3 48993 zlmodzxzldep 48995 ldepsnlinclem2 48997 ldepsnlinc 48999 |
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