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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 2833 | 1 ⊢ 5 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 (class class class)co 7360 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 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 2709 ax-sep 5231 ax-nul 5241 ax-pr 5370 ax-un 7682 ax-1cn 11087 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7363 df-om 7811 df-2nd 7936 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 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 21906 log2ublem1 26923 log2ublem2 26924 log2ub 26926 birthday 26931 ppiublem1 27179 ppiublem2 27180 ppiub 27181 bclbnd 27257 bposlem3 27263 bposlem4 27264 bposlem5 27265 bposlem6 27266 bposlem8 27268 bposlem9 27269 lgsdir2lem3 27304 ex-eprel 30518 ex-xp 30521 fib6 34566 hgt750lem2 34812 hgt750leme 34818 12gcd5e1 42456 12lcm5e60 42461 lcm5un 42470 lcmineqlem 42505 3lexlogpow5ineq1 42507 3lexlogpow2ineq1 42511 3lexlogpow2ineq2 42512 3lexlogpow5ineq5 42513 aks4d1p1p6 42526 aks4d1p1 42529 5ne0 42712 rmydioph 43460 expdiophlem2 43468 algstr 43619 inductionexd 44600 plusmod5ne 47811 minusmod5ne 47815 minusmodnep2tmod 47819 8mod5e3 47826 257prm 48036 fmtno4prmfac193 48048 31prm 48072 41prothprm 48094 gbowge7 48251 gbege6 48253 stgoldbwt 48264 sbgoldbwt 48265 sbgoldbm 48272 sbgoldbo 48275 nnsum3primesle9 48282 gpg5order 48548 gpg5nbgrvtx13starlem1 48559 gpg5nbgrvtx13starlem2 48560 gpg5nbgrvtx13starlem3 48561 gpg5nbgr3star 48569 gpg5grlim 48581 pgnioedg1 48596 pgnioedg2 48597 pgnioedg3 48598 pgnioedg4 48599 pgnbgreunbgrlem1 48601 pgnbgreunbgrlem2lem1 48602 pgnbgreunbgrlem2lem2 48603 pgnbgreunbgrlem2lem3 48604 pgnbgreunbgrlem4 48607 gpg5edgnedg 48618 grlimedgnedg 48619 |
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