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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 12308 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5nn 12328 | . . 3 ⊢ 5 ∈ ℕ | |
| 3 | peano2nn 12246 | . . 3 ⊢ (5 ∈ ℕ → (5 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (5 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2859 | 1 ⊢ 6 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2143 (class class class)co 7412 1c1 11102 + caddc 11104 ℕcn 12234 5c5 12299 6c6 12300 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pr 5406 ax-un 7734 ax-1cn 11159 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-ov 7415 df-om 7864 df-2nd 7988 df-frecs 8279 df-wrecs 8310 df-recs 8359 df-rdg 8398 df-nn 12235 df-2 12304 df-3 12305 df-4 12306 df-5 12307 df-6 12308 |
| This theorem is referenced by: 7nn 12334 6pos 12355 6nn0 12526 ef01bndlem 16241 sin01bnd 16242 cos01bnd 16243 6gcd4e2 16597 6lcm4e12 16675 83prm 17184 139prm 17185 163prm 17186 prmo6 17191 vscandx 17373 vscaid 17374 lmodstr 17379 ipsstr 17390 lt6abl 19966 psrvalstr 22047 sincos3rdpi 26663 1cubrlem 26987 quart1cl 27000 quart1lem 27001 quart1 27002 log2ub 27095 log2le1 27096 basellem5 27230 basellem8 27233 basellem9 27234 ppiublem1 27347 ppiublem2 27348 ppiub 27349 bpos1 27428 bposlem9 27437 itvndx 28687 itvid 28689 slotsinbpsd 28691 lngndxnitvndx 28693 trkgstr 28694 eengstr 29311 ex-cnv 30769 ex-dm 30771 ex-dvds 30788 ex-gcd 30789 ex-lcm 30790 hgt750lem 35019 60gcd6e6 42752 60gcd7e1 42753 12lcm5e60 42756 60lcm6e60 42757 60lcm7e420 42758 lcm6un 42766 lcmineqlem 42800 3lexlogpow5ineq1 42802 aks4d1p1p5 42823 aks4d1p1 42824 6ne0 43009 rmydioph 43724 expdiophlem2 43732 algstr 43883 goldratmolem2 47606 139prmALT 48331 31prm 48332 127prm 48334 nprmdvdsfacm1lem4 48358 nprmdvdsfacm1 48359 ppivalnnnprmge6 48361 6even 48459 gbowge7 48511 stgoldbwt 48524 sbgoldbwt 48525 mogoldbb 48533 sbgoldbo 48535 nnsum3primesle9 48542 nnsum4primeseven 48548 wtgoldbnnsum4prm 48550 bgoldbnnsum3prm 48552 zlmodzxzequa 49259 zlmodzxznm 49260 zlmodzxzequap 49262 zlmodzxzldeplem3 49265 zlmodzxzldep 49267 ldepsnlinclem2 49269 ldepsnlinc 49271 |
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