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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 12242 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4nn 12259 | . . 3 ⊢ 4 ∈ ℕ | |
| 3 | peano2nn 12181 | . . 3 ⊢ (4 ∈ ℕ → (4 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (4 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2837 | 1 ⊢ 5 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2121 (class class class)co 7359 1c1 11035 + caddc 11037 ℕcn 12169 4c4 12233 5c5 12234 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-sep 5220 ax-nul 5230 ax-pr 5364 ax-un 7681 ax-1cn 11092 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-ral 3056 df-rex 3066 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3725 df-csb 3833 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-pss 3904 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6255 df-ord 6316 df-on 6317 df-lim 6318 df-suc 6319 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-ov 7362 df-om 7810 df-2nd 7934 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8343 df-nn 12170 df-2 12239 df-3 12240 df-4 12241 df-5 12242 |
| This theorem is referenced by: 6nn 12265 5nn0 12452 5eluz3 12828 5ndvds3 16377 5ndvds6 16378 prm23ge5 16781 dec5dvds 17030 dec5nprm 17032 dec2nprm 17033 5prm 17074 10nprm 17079 23prm 17084 prmlem2 17085 43prm 17087 83prm 17088 317prm 17091 prmo5 17094 scandx 17272 scaid 17273 lmodstr 17283 ipsstr 17294 ccondx 17371 ccoid 17372 slotsbhcdif 17373 slotsdifplendx2 17374 slotsdifocndx 17375 prdsvalstr 17410 catstr 17922 lt6abl 19864 psrvalstr 21894 log2ublem1 26931 log2ublem2 26932 log2ub 26934 birthday 26939 ppiublem1 27186 ppiublem2 27187 ppiub 27188 bclbnd 27264 bposlem3 27270 bposlem4 27271 bposlem5 27272 bposlem6 27273 bposlem8 27275 bposlem9 27276 lgsdir2lem3 27311 ex-eprel 30523 ex-xp 30526 fib6 34600 hgt750lem2 34846 hgt750leme 34852 12gcd5e1 42501 12lcm5e60 42506 lcm5un 42515 lcmineqlem 42550 3lexlogpow5ineq1 42552 3lexlogpow2ineq1 42556 3lexlogpow2ineq2 42557 3lexlogpow5ineq5 42558 aks4d1p1p6 42571 aks4d1p1 42574 5ne0 42756 rmydioph 43472 expdiophlem2 43480 algstr 43631 inductionexd 44612 goldratmolem2 47361 plusmod5ne 47826 minusmod5ne 47830 minusmodnep2tmod 47834 8mod5e3 47841 257prm 48051 fmtno4prmfac193 48063 31prm 48087 41prothprm 48109 gbowge7 48266 gbege6 48268 stgoldbwt 48279 sbgoldbwt 48280 sbgoldbm 48287 sbgoldbo 48290 nnsum3primesle9 48297 gpg5order 48563 gpg5nbgrvtx13starlem1 48574 gpg5nbgrvtx13starlem2 48575 gpg5nbgrvtx13starlem3 48576 gpg5nbgr3star 48584 gpg5grlim 48596 pgnioedg1 48611 pgnioedg2 48612 pgnioedg3 48613 pgnioedg4 48614 pgnbgreunbgrlem1 48616 pgnbgreunbgrlem2lem1 48617 pgnbgreunbgrlem2lem2 48618 pgnbgreunbgrlem2lem3 48619 pgnbgreunbgrlem4 48622 gpg5edgnedg 48633 grlimedgnedg 48634 |
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