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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 12247 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4nn 12264 | . . 3 ⊢ 4 ∈ ℕ | |
| 3 | peano2nn 12186 | . . 3 ⊢ (4 ∈ ℕ → (4 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (4 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2832 | 1 ⊢ 5 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 (class class class)co 7367 1c1 11039 + caddc 11041 ℕcn 12174 4c4 12238 5c5 12239 |
| 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 |
| This theorem is referenced by: 6nn 12270 5nn0 12457 5eluz3 12833 5ndvds3 16382 5ndvds6 16383 prm23ge5 16786 dec5dvds 17035 dec5nprm 17037 dec2nprm 17038 5prm 17079 10nprm 17084 23prm 17089 prmlem2 17090 43prm 17092 83prm 17093 317prm 17096 prmo5 17099 scandx 17277 scaid 17278 lmodstr 17288 ipsstr 17299 ccondx 17376 ccoid 17377 slotsbhcdif 17378 slotsdifplendx2 17379 slotsdifocndx 17380 prdsvalstr 17415 catstr 17927 lt6abl 19870 psrvalstr 21896 log2ublem1 26910 log2ublem2 26911 log2ub 26913 birthday 26918 ppiublem1 27165 ppiublem2 27166 ppiub 27167 bclbnd 27243 bposlem3 27249 bposlem4 27250 bposlem5 27251 bposlem6 27252 bposlem8 27254 bposlem9 27255 lgsdir2lem3 27290 ex-eprel 30503 ex-xp 30506 fib6 34550 hgt750lem2 34796 hgt750leme 34802 12gcd5e1 42442 12lcm5e60 42447 lcm5un 42456 lcmineqlem 42491 3lexlogpow5ineq1 42493 3lexlogpow2ineq1 42497 3lexlogpow2ineq2 42498 3lexlogpow5ineq5 42499 aks4d1p1p6 42512 aks4d1p1 42515 5ne0 42698 rmydioph 43442 expdiophlem2 43450 algstr 43601 inductionexd 44582 goldratmolem2 47334 plusmod5ne 47799 minusmod5ne 47803 minusmodnep2tmod 47807 8mod5e3 47814 257prm 48024 fmtno4prmfac193 48036 31prm 48060 41prothprm 48082 gbowge7 48239 gbege6 48241 stgoldbwt 48252 sbgoldbwt 48253 sbgoldbm 48260 sbgoldbo 48263 nnsum3primesle9 48270 gpg5order 48536 gpg5nbgrvtx13starlem1 48547 gpg5nbgrvtx13starlem2 48548 gpg5nbgrvtx13starlem3 48549 gpg5nbgr3star 48557 gpg5grlim 48569 pgnioedg1 48584 pgnioedg2 48585 pgnioedg3 48586 pgnioedg4 48587 pgnbgreunbgrlem1 48589 pgnbgreunbgrlem2lem1 48590 pgnbgreunbgrlem2lem2 48591 pgnbgreunbgrlem2lem3 48592 pgnbgreunbgrlem4 48595 gpg5edgnedg 48606 grlimedgnedg 48607 |
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