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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 12238 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4nn 12255 | . . 3 ⊢ 4 ∈ ℕ | |
| 3 | peano2nn 12177 | . . 3 ⊢ (4 ∈ ℕ → (4 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (4 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2835 | 1 ⊢ 5 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2119 (class class class)co 7356 1c1 11030 + caddc 11032 ℕcn 12165 4c4 12229 5c5 12230 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-sep 5218 ax-nul 5228 ax-pr 5362 ax-un 7678 ax-1cn 11087 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-ral 3054 df-rex 3064 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3903 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-iun 4923 df-br 5073 df-opab 5135 df-mpt 5154 df-tr 5180 df-id 5513 df-eprel 5518 df-po 5526 df-so 5527 df-fr 5571 df-we 5573 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-pred 6252 df-ord 6313 df-on 6314 df-lim 6315 df-suc 6316 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-ov 7359 df-om 7807 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-nn 12166 df-2 12235 df-3 12236 df-4 12237 df-5 12238 |
| This theorem is referenced by: 6nn 12261 5nn0 12448 5eluz3 12824 5ndvds3 16373 5ndvds6 16374 prm23ge5 16777 dec5dvds 17026 dec5nprm 17028 dec2nprm 17029 5prm 17070 10nprm 17075 23prm 17080 prmlem2 17081 43prm 17083 83prm 17084 317prm 17087 prmo5 17090 scandx 17268 scaid 17269 lmodstr 17279 ipsstr 17290 ccondx 17367 ccoid 17368 slotsbhcdif 17369 slotsdifplendx2 17370 slotsdifocndx 17371 prdsvalstr 17406 catstr 17918 lt6abl 19861 psrvalstr 21891 log2ublem1 26928 log2ublem2 26929 log2ub 26931 birthday 26936 ppiublem1 27183 ppiublem2 27184 ppiub 27185 bclbnd 27261 bposlem3 27267 bposlem4 27268 bposlem5 27269 bposlem6 27270 bposlem8 27272 bposlem9 27273 lgsdir2lem3 27308 ex-eprel 30521 ex-xp 30524 fib6 34590 hgt750lem2 34836 hgt750leme 34842 12gcd5e1 42488 12lcm5e60 42493 lcm5un 42502 lcmineqlem 42537 3lexlogpow5ineq1 42539 3lexlogpow2ineq1 42543 3lexlogpow2ineq2 42544 3lexlogpow5ineq5 42545 aks4d1p1p6 42558 aks4d1p1 42561 5ne0 42743 rmydioph 43459 expdiophlem2 43467 algstr 43618 inductionexd 44599 goldratmolem2 47349 plusmod5ne 47814 minusmod5ne 47818 minusmodnep2tmod 47822 8mod5e3 47829 257prm 48039 fmtno4prmfac193 48051 31prm 48075 41prothprm 48097 gbowge7 48254 gbege6 48256 stgoldbwt 48267 sbgoldbwt 48268 sbgoldbm 48275 sbgoldbo 48278 nnsum3primesle9 48285 gpg5order 48551 gpg5nbgrvtx13starlem1 48562 gpg5nbgrvtx13starlem2 48563 gpg5nbgrvtx13starlem3 48564 gpg5nbgr3star 48572 gpg5grlim 48584 pgnioedg1 48599 pgnioedg2 48600 pgnioedg3 48601 pgnioedg4 48602 pgnbgreunbgrlem1 48604 pgnbgreunbgrlem2lem1 48605 pgnbgreunbgrlem2lem2 48606 pgnbgreunbgrlem2lem3 48607 pgnbgreunbgrlem4 48610 gpg5edgnedg 48621 grlimedgnedg 48622 |
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