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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 12183 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4nn 12200 | . . 3 ⊢ 4 ∈ ℕ | |
| 3 | peano2nn 12129 | . . 3 ⊢ (4 ∈ ℕ → (4 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (4 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2825 | 1 ⊢ 5 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2110 (class class class)co 7341 1c1 10999 + caddc 11001 ℕcn 12117 4c4 12174 5c5 12175 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2112 ax-9 2120 ax-10 2143 ax-11 2159 ax-12 2179 ax-ext 2702 ax-sep 5232 ax-nul 5242 ax-pr 5368 ax-un 7663 ax-1cn 11056 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-ral 3046 df-rex 3055 df-reu 3345 df-rab 3394 df-v 3436 df-sbc 3740 df-csb 3849 df-dif 3903 df-un 3905 df-in 3907 df-ss 3917 df-pss 3920 df-nul 4282 df-if 4474 df-pw 4550 df-sn 4575 df-pr 4577 df-op 4581 df-uni 4858 df-iun 4941 df-br 5090 df-opab 5152 df-mpt 5171 df-tr 5197 df-id 5509 df-eprel 5514 df-po 5522 df-so 5523 df-fr 5567 df-we 5569 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-pred 6244 df-ord 6305 df-on 6306 df-lim 6307 df-suc 6308 df-iota 6433 df-fun 6479 df-fn 6480 df-f 6481 df-f1 6482 df-fo 6483 df-f1o 6484 df-fv 6485 df-ov 7344 df-om 7792 df-2nd 7917 df-frecs 8206 df-wrecs 8237 df-recs 8286 df-rdg 8324 df-nn 12118 df-2 12180 df-3 12181 df-4 12182 df-5 12183 |
| This theorem is referenced by: 6nn 12206 5nn0 12393 5eluz3 12773 5ndvds3 16316 5ndvds6 16317 prm23ge5 16719 dec5dvds 16968 dec5nprm 16970 dec2nprm 16971 5prm 17012 10nprm 17017 23prm 17022 prmlem2 17023 43prm 17025 83prm 17026 317prm 17029 prmo5 17032 scandx 17210 scaid 17211 lmodstr 17221 ipsstr 17232 ccondx 17309 ccoid 17310 slotsbhcdif 17311 slotsdifplendx2 17312 slotsdifocndx 17313 prdsvalstr 17348 catstr 17859 lt6abl 19800 psrvalstr 21846 log2ublem1 26876 log2ublem2 26877 log2ub 26879 birthday 26884 ppiublem1 27133 ppiublem2 27134 ppiub 27135 bclbnd 27211 bposlem3 27217 bposlem4 27218 bposlem5 27219 bposlem6 27220 bposlem8 27222 bposlem9 27223 lgsdir2lem3 27258 ex-eprel 30403 ex-xp 30406 fib6 34409 hgt750lem2 34655 hgt750leme 34661 12gcd5e1 42015 12lcm5e60 42020 lcm5un 42029 lcmineqlem 42064 3lexlogpow5ineq1 42066 3lexlogpow2ineq1 42070 3lexlogpow2ineq2 42071 3lexlogpow5ineq5 42072 aks4d1p1p6 42085 aks4d1p1 42088 5ne0 42272 rmydioph 43026 expdiophlem2 43034 algstr 43185 inductionexd 44167 plusmod5ne 47355 minusmod5ne 47359 minusmodnep2tmod 47363 8mod5e3 47370 257prm 47571 fmtno4prmfac193 47583 31prm 47607 41prothprm 47629 gbowge7 47773 gbege6 47775 stgoldbwt 47786 sbgoldbwt 47787 sbgoldbm 47794 sbgoldbo 47797 nnsum3primesle9 47804 gpg5order 48070 gpg5nbgrvtx13starlem1 48081 gpg5nbgrvtx13starlem2 48082 gpg5nbgrvtx13starlem3 48083 gpg5nbgr3star 48091 gpg5grlim 48103 pgnioedg1 48118 pgnioedg2 48119 pgnioedg3 48120 pgnioedg4 48121 pgnbgreunbgrlem1 48123 pgnbgreunbgrlem2lem1 48124 pgnbgreunbgrlem2lem2 48125 pgnbgreunbgrlem2lem3 48126 pgnbgreunbgrlem4 48129 gpg5edgnedg 48140 grlimedgnedg 48141 |
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