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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 12224 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5nn 12243 | . . 3 ⊢ 5 ∈ ℕ | |
| 3 | peano2nn 12169 | . . 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 7368 1c1 11039 + caddc 11041 ℕcn 12157 5c5 12215 6c6 12216 |
| 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 5243 ax-nul 5253 ax-pr 5379 ax-un 7690 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 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 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5527 df-eprel 5532 df-po 5540 df-so 5541 df-fr 5585 df-we 5587 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-pred 6267 df-ord 6328 df-on 6329 df-lim 6330 df-suc 6331 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-ov 7371 df-om 7819 df-2nd 7944 df-frecs 8233 df-wrecs 8264 df-recs 8313 df-rdg 8351 df-nn 12158 df-2 12220 df-3 12221 df-4 12222 df-5 12223 df-6 12224 |
| This theorem is referenced by: 7nn 12249 6nn0 12434 ef01bndlem 16121 sin01bnd 16122 cos01bnd 16123 6gcd4e2 16477 6lcm4e12 16555 83prm 17062 139prm 17063 163prm 17064 prmo6 17069 vscandx 17251 vscaid 17252 lmodstr 17257 ipsstr 17268 lt6abl 19836 psrvalstr 21884 sincos3rdpi 26494 1cubrlem 26819 quart1cl 26832 quart1lem 26833 quart1 26834 log2ub 26927 log2le1 26928 basellem5 27063 basellem8 27066 basellem9 27067 ppiublem1 27181 ppiublem2 27182 ppiub 27183 bpos1 27262 bposlem9 27271 itvndx 28521 itvid 28523 slotsinbpsd 28525 lngndxnitvndx 28527 trkgstr 28528 eengstr 29065 ex-cnv 30524 ex-dm 30526 ex-dvds 30543 ex-gcd 30544 ex-lcm 30545 hgt750lem 34829 60gcd6e6 42374 60gcd7e1 42375 12lcm5e60 42378 60lcm6e60 42379 60lcm7e420 42380 lcm6un 42388 lcmineqlem 42422 3lexlogpow5ineq1 42424 aks4d1p1p5 42445 aks4d1p1 42446 6ne0 42631 rmydioph 43371 expdiophlem2 43379 algstr 43530 139prmALT 47956 31prm 47957 127prm 47959 6even 48071 gbowge7 48123 stgoldbwt 48136 sbgoldbwt 48137 mogoldbb 48145 sbgoldbo 48147 nnsum3primesle9 48154 nnsum4primeseven 48160 wtgoldbnnsum4prm 48162 bgoldbnnsum3prm 48164 zlmodzxzequa 48856 zlmodzxznm 48857 zlmodzxzequap 48859 zlmodzxzldeplem3 48862 zlmodzxzldep 48864 ldepsnlinclem2 48866 ldepsnlinc 48868 |
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