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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 9568 | . 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 9305 ℕ0cn0 9565 |
| 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 9566 |
| This theorem is used by: nnnn0i 9573 elnnnn0b 9609 elnnnn0c 9610 elnn0z 9659 elz2 9718 nn0ind-raph 9765 zindd 9766 fzo1fzo0n0 10597 ubmelfzo 10620 elfzom1elp1fzo 10622 fzo0sn0fzo1 10641 modqmulnn 10781 expnegap0 10986 expcllem 10989 expcl2lemap 10990 expap0 11008 expeq0 11009 mulexpzap 11018 expnlbnd 11104 apexp1 11158 facdiv 11178 faclbnd 11181 faclbnd3 11183 faclbnd6 11184 pfxn0 11462 resqrexlemlo 11781 absexpzap 11848 nnf1o 12145 summodclem2a 12150 fsum3 12156 arisum 12267 expcnvap0 12271 expcnv 12273 geo2sum 12283 geo2lim 12285 geoisum1c 12289 0.999... 12290 mertenslem2 12305 fprodseq 12352 fprodfac 12384 ef0lem 12429 ege2le3 12440 efaddlem 12443 efexp 12451 dvdsmodexp 12564 nn0enne 12671 nnehalf 12673 nno 12675 nn0o 12676 divalg2 12695 ndvdssub 12699 gcddiv 12798 gcdmultiple 12799 gcdmultiplez 12800 rpmulgcd 12805 rplpwr 12806 dvdssqlem 12809 eucalgf 12835 1nprm 12894 isprm6 12927 prmdvdsexp 12928 pw2dvds 12946 oddpwdc 12954 phicl2 12994 phibndlem 12996 phiprmpw 13002 crth 13004 hashgcdlem 13018 phisum 13021 pythagtriplem10 13050 pythagtriplem6 13051 pythagtriplem7 13052 pythagtriplem12 13056 pythagtriplem14 13058 pclemub 13068 pcexp 13090 pcid 13105 pcprod 13127 pcbc 13132 prmpwdvds 13136 infpnlem1 13140 infpnlem2 13141 prmunb 13143 1arith 13148 ennnfonelemjn 13295 ghmmulg 14061 znf1o 14988 znfi 14992 znhash 14993 znidom 14994 znidomb 14995 znrrg 14997 dvexp 15814 plycolemc 15861 logbgcd1irr 16075 birthdaylem2 16094 birthdaylem3 16095 pellexlem1 16097 1sgm2ppw 16115 pcbcctr 16123 bclbnd 16127 lgsval4a 16153 gausslemma2dlem0c 16182 gausslemma2dlem0d 16183 gausslemma2dlem6 16198 2lgslem1a1 16217 2lgslem1c 16221 2lgslem3a1 16228 2lgslem3b1 16229 2lgslem3c1 16230 2lgslem3d1 16231 isclwwlknx 16669 |
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