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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 12248 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5nn 12267 | . . 3 ⊢ 5 ∈ ℕ | |
| 3 | peano2nn 12186 | . . 3 ⊢ (5 ∈ ℕ → (5 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (5 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2832 | 1 ⊢ 6 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 (class class class)co 7367 1c1 11039 + caddc 11041 ℕcn 12174 5c5 12239 6c6 12240 |
| 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 2708 ax-sep 5231 ax-nul 5241 ax-pr 5375 ax-un 7689 ax-1cn 11096 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-ov 7370 df-om 7818 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 |
| This theorem is referenced by: 7nn 12273 6nn0 12458 ef01bndlem 16151 sin01bnd 16152 cos01bnd 16153 6gcd4e2 16507 6lcm4e12 16585 83prm 17093 139prm 17094 163prm 17095 prmo6 17100 vscandx 17282 vscaid 17283 lmodstr 17288 ipsstr 17299 lt6abl 19870 psrvalstr 21896 sincos3rdpi 26481 1cubrlem 26805 quart1cl 26818 quart1lem 26819 quart1 26820 log2ub 26913 log2le1 26914 basellem5 27048 basellem8 27051 basellem9 27052 ppiublem1 27165 ppiublem2 27166 ppiub 27167 bpos1 27246 bposlem9 27255 itvndx 28505 itvid 28507 slotsinbpsd 28509 lngndxnitvndx 28511 trkgstr 28512 eengstr 29049 ex-cnv 30507 ex-dm 30509 ex-dvds 30526 ex-gcd 30527 ex-lcm 30528 hgt750lem 34795 60gcd6e6 42443 60gcd7e1 42444 12lcm5e60 42447 60lcm6e60 42448 60lcm7e420 42449 lcm6un 42457 lcmineqlem 42491 3lexlogpow5ineq1 42493 aks4d1p1p5 42514 aks4d1p1 42515 6ne0 42699 rmydioph 43442 expdiophlem2 43450 algstr 43601 goldratmolem2 47334 139prmALT 48059 31prm 48060 127prm 48062 nprmdvdsfacm1lem4 48086 nprmdvdsfacm1 48087 ppivalnnnprmge6 48089 6even 48187 gbowge7 48239 stgoldbwt 48252 sbgoldbwt 48253 mogoldbb 48261 sbgoldbo 48263 nnsum3primesle9 48270 nnsum4primeseven 48276 wtgoldbnnsum4prm 48278 bgoldbnnsum3prm 48280 zlmodzxzequa 48972 zlmodzxznm 48973 zlmodzxzequap 48975 zlmodzxzldeplem3 48978 zlmodzxzldep 48980 ldepsnlinclem2 48982 ldepsnlinc 48984 |
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