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Mirrors > Home > MPE Home > Th. List > 5nn | Structured version Visualization version GIF version |
Description: 5 is a positive integer. (Contributed by Mario Carneiro, 15-Sep-2013.) |
Ref | Expression |
---|---|
5nn | ⊢ 5 ∈ ℕ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-5 12228 | . 2 ⊢ 5 = (4 + 1) | |
2 | 4nn 12245 | . . 3 ⊢ 4 ∈ ℕ | |
3 | peano2nn 12174 | . . 3 ⊢ (4 ∈ ℕ → (4 + 1) ∈ ℕ) | |
4 | 2, 3 | ax-mp 5 | . 2 ⊢ (4 + 1) ∈ ℕ |
5 | 1, 4 | eqeltri 2828 | 1 ⊢ 5 ∈ ℕ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2106 (class class class)co 7362 1c1 11061 + caddc 11063 ℕcn 12162 4c4 12219 5c5 12220 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5261 ax-nul 5268 ax-pr 5389 ax-un 7677 ax-1cn 11118 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-ral 3061 df-rex 3070 df-reu 3352 df-rab 3406 df-v 3448 df-sbc 3743 df-csb 3859 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3932 df-nul 4288 df-if 4492 df-pw 4567 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4871 df-iun 4961 df-br 5111 df-opab 5173 df-mpt 5194 df-tr 5228 df-id 5536 df-eprel 5542 df-po 5550 df-so 5551 df-fr 5593 df-we 5595 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-pred 6258 df-ord 6325 df-on 6326 df-lim 6327 df-suc 6328 df-iota 6453 df-fun 6503 df-fn 6504 df-f 6505 df-f1 6506 df-fo 6507 df-f1o 6508 df-fv 6509 df-ov 7365 df-om 7808 df-2nd 7927 df-frecs 8217 df-wrecs 8248 df-recs 8322 df-rdg 8361 df-nn 12163 df-2 12225 df-3 12226 df-4 12227 df-5 12228 |
This theorem is referenced by: 6nn 12251 5nn0 12442 prm23ge5 16698 dec5dvds 16947 dec5nprm 16949 dec2nprm 16950 5prm 16992 10nprm 16997 23prm 17002 prmlem2 17003 43prm 17005 83prm 17006 317prm 17009 prmo5 17012 scandx 17209 scaid 17210 lmodstr 17220 ipsstr 17231 ccondx 17308 ccoid 17309 slotsbhcdif 17310 slotsbhcdifOLD 17311 slotsdifplendx2 17312 slotsdifocndx 17313 prdsvalstr 17348 oppchomfvalOLD 17609 oppcbasOLD 17614 resccoOLD 17731 catstr 17859 lt6abl 19686 mgpscaOLD 19919 psrvalstr 21355 opsrscaOLD 21498 tngscaOLD 24043 log2ublem1 26333 log2ublem2 26334 log2ub 26336 birthday 26341 ppiublem1 26587 ppiublem2 26588 ppiub 26589 bclbnd 26665 bposlem3 26671 bposlem4 26672 bposlem5 26673 bposlem6 26674 bposlem8 26676 bposlem9 26677 lgsdir2lem3 26712 ex-eprel 29440 ex-xp 29443 fib6 33095 hgt750lem2 33354 hgt750leme 33360 12gcd5e1 40533 12lcm5e60 40538 lcm5un 40547 lcmineqlem 40582 3lexlogpow5ineq1 40584 3lexlogpow2ineq1 40588 3lexlogpow2ineq2 40589 3lexlogpow5ineq5 40590 aks4d1p1p6 40603 aks4d1p1 40606 rmydioph 41396 expdiophlem2 41404 algstr 41562 inductionexd 42549 mnringscadOLD 42625 257prm 45873 fmtno4prmfac193 45885 31prm 45909 41prothprm 45931 gbowge7 46075 gbege6 46077 stgoldbwt 46088 sbgoldbwt 46089 sbgoldbm 46096 sbgoldbo 46099 nnsum3primesle9 46106 prstclevalOLD 47209 prstcocvalOLD 47212 |
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