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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 12278 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5nn 12298 | . . 3 ⊢ 5 ∈ ℕ | |
| 3 | peano2nn 12216 | . . 3 ⊢ (5 ∈ ℕ → (5 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (5 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2857 | 1 ⊢ 6 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2141 (class class class)co 7391 1c1 11068 + caddc 11070 ℕcn 12204 5c5 12269 6c6 12270 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pr 5387 ax-un 7713 ax-1cn 11125 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6283 df-ord 6344 df-on 6345 df-lim 6346 df-suc 6347 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-ov 7394 df-om 7842 df-2nd 7966 df-frecs 8256 df-wrecs 8287 df-recs 8336 df-rdg 8375 df-nn 12205 df-2 12274 df-3 12275 df-4 12276 df-5 12277 df-6 12278 |
| This theorem is referenced by: 7nn 12304 6pos 12325 6nn0 12496 ef01bndlem 16207 sin01bnd 16208 cos01bnd 16209 6gcd4e2 16563 6lcm4e12 16641 83prm 17150 139prm 17151 163prm 17152 prmo6 17157 vscandx 17339 vscaid 17340 lmodstr 17345 ipsstr 17356 lt6abl 19926 psrvalstr 21956 sincos3rdpi 26570 1cubrlem 26894 quart1cl 26907 quart1lem 26908 quart1 26909 log2ub 27002 log2le1 27003 basellem5 27137 basellem8 27140 basellem9 27141 ppiublem1 27254 ppiublem2 27255 ppiub 27256 bpos1 27335 bposlem9 27344 itvndx 28594 itvid 28596 slotsinbpsd 28598 lngndxnitvndx 28600 trkgstr 28601 eengstr 29138 ex-cnv 30596 ex-dm 30598 ex-dvds 30615 ex-gcd 30616 ex-lcm 30617 hgt750lem 34906 60gcd6e6 42582 60gcd7e1 42583 12lcm5e60 42586 60lcm6e60 42587 60lcm7e420 42588 lcm6un 42596 lcmineqlem 42630 3lexlogpow5ineq1 42632 aks4d1p1p5 42653 aks4d1p1 42654 6ne0 42837 rmydioph 43552 expdiophlem2 43560 algstr 43711 goldratmolem2 47441 139prmALT 48166 31prm 48167 127prm 48169 nprmdvdsfacm1lem4 48193 nprmdvdsfacm1 48194 ppivalnnnprmge6 48196 6even 48294 gbowge7 48346 stgoldbwt 48359 sbgoldbwt 48360 mogoldbb 48368 sbgoldbo 48370 nnsum3primesle9 48377 nnsum4primeseven 48383 wtgoldbnnsum4prm 48385 bgoldbnnsum3prm 48387 zlmodzxzequa 49079 zlmodzxznm 49080 zlmodzxzequap 49082 zlmodzxzldeplem3 49085 zlmodzxzldep 49087 ldepsnlinclem2 49089 ldepsnlinc 49091 |
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