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| Mirrors > Home > ILE Home > Th. List > nnnn0 | GIF version | ||
| Description: A positive integer is a nonnegative integer. (Contributed by NM, 9-May-2004.) |
| Ref | Expression |
|---|---|
| nnnn0 | ⊢ (𝐴 ∈ ℕ → 𝐴 ∈ ℕ0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnssnn0 9571 | . 2 ⊢ ℕ ⊆ ℕ0 | |
| 2 | 1 | sseli 3244 | 1 ⊢ (𝐴 ∈ ℕ → 𝐴 ∈ ℕ0) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 ℕcn 9307 ℕ0cn0 9568 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-n0 9569 |
| This theorem is used by: nnnn0i 9576 elnnnn0b 9612 elnnnn0c 9613 elnn0z 9662 elz2 9721 nn0ind-raph 9768 zindd 9769 fzo1fzo0n0 10606 ubmelfzo 10629 elfzom1elp1fzo 10631 fzo0sn0fzo1 10650 modqmulnn 10793 expnegap0 10998 expcllem 11001 expcl2lemap 11002 expap0 11020 expeq0 11021 mulexpzap 11030 expnlbnd 11116 apexp1 11171 facdiv 11191 faclbnd 11194 faclbnd3 11196 faclbnd6 11197 pfxn0 11475 resqrexlemlo 11794 absexpzap 11862 nnf1o 12161 summodclem2a 12166 fsum3 12172 arisum 12283 expcnvap0 12287 expcnv 12289 geo2sum 12299 geo2lim 12301 geoisum1c 12305 0.999... 12306 mertenslem2 12321 fprodseq 12368 fprodfac 12400 ef0lem 12445 ege2le3 12456 efaddlem 12459 efexp 12467 dvdsmodexp 12580 nn0enne 12687 nnehalf 12689 nno 12691 nn0o 12692 divalg2 12711 ndvdssub 12715 gcddiv 12814 gcdmultiple 12815 gcdmultiplez 12816 rpmulgcd 12821 rplpwr 12822 dvdssqlem 12825 eucalgf 12851 1nprm 12910 isprm6 12944 prmdvdsexp 12945 pwbdvdslemn 12962 phicl2 13014 phibndlem 13016 phiprmpw 13022 crth 13024 hashgcdlem 13038 phisum 13041 pythagtriplem10 13070 pythagtriplem6 13071 pythagtriplem7 13072 pythagtriplem12 13076 pythagtriplem14 13078 pclemub 13088 pcexp 13110 pcid 13125 pcprod 13147 pcbc 13152 prmpwdvds 13156 infpnlem1 13160 infpnlem2 13161 prmunb 13163 1arith 13168 ennnfonelemjn 13344 ghmmulg 14110 znf1o 15037 znfi 15041 znhash 15042 znidom 15043 znidomb 15044 znrrg 15046 dvexp 15864 plycolemc 15911 logbgcd1irr 16125 birthdaylem2 16148 birthdaylem3 16149 pellexlem1 16151 1sgm2ppw 16211 chtublem 16217 pcbcctr 16225 bclbnd 16229 bposlem1 16233 lgsval4a 16263 gausslemma2dlem0c 16292 gausslemma2dlem0d 16293 gausslemma2dlem6 16308 2lgslem1a1 16327 2lgslem1c 16331 2lgslem3a1 16338 2lgslem3b1 16339 2lgslem3c1 16340 2lgslem3d1 16341 isclwwlknx 16779 |
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