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| Description: Nonnegative integers expressed in terms of naturals and zero. (Contributed by Raph Levien, 10-Dec-2002.) |
| Ref | Expression |
|---|---|
| elnn0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-n0 6068 |
. . 3
| |
| 2 | 1 | eleq2i 1537 |
. 2
|
| 3 | elun 2171 |
. 2
| |
| 4 | 0cn 5316 |
. . . . 5
| |
| 5 | 4 | elisseti 1816 |
. . . 4
|
| 6 | 5 | elsnc2 2435 |
. . 3
|
| 7 | 6 | orbi2i 255 |
. 2
|
| 8 | 2, 3, 7 | 3bitr 177 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: dfn2 6080 0nn0 6081 lt0nnn0 6084 nn0addclt 6088 nn0mulcl 6090 nnnn0addclt 6093 nn0ltp1let 6095 elnn0z 6115 elznn0nn 6116 elznn0 6117 elznn 6118 nn0subt 6129 elnn0nn 6139 zltp1let 6149 nn0ind-raph 6182 expp1t 6534 expcllem 6535 expne0it 6548 expge0t 6551 expge1t 6553 exple1t 6567 facp1t 6894 faclbnd 6903 faclbnd3 6905 faclbnd4lem1 6906 faclbnd4lem3 6908 faclbnd4 6910 bcpasc 6927 bccl2t 6929 binom 7030 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-9 965 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-rep 2691 ax-sep 2701 ax-nul 2708 ax-pow 2740 ax-pr 2777 ax-un 2864 ax-inf2 4613 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 776 df-3an 777 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1586 df-ral 1648 df-rex 1649 df-reu 1650 df-rab 1651 df-v 1810 df-sbc 1940 df-csb 2000 df-dif 2047 df-un 2048 df-in 2049 df-ss 2051 df-pss 2053 df-nul 2279 df-if 2360 df-pw 2400 df-sn 2410 df-pr 2411 df-tp 2413 df-op 2414 df-uni 2502 df-int 2532 df-iun 2566 df-br 2618 df-opab 2665 df-tr 2679 df-eprel 2830 df-id 2833 df-po 2838 df-so 2848 df-fr 2915 df-we 2932 df-ord 2949 df-on 2950 df-lim 2951 df-suc 2952 df-om 3130 df-xp 3182 df-rel 3183 df-cnv 3184 df-co 3185 df-dm 3186 df-rn 3187 df-res 3188 df-ima 3189 df-fun 3190 df-fn 3191 df-f 3192 df-fv 3196 df-rdg 3930 df-opr 3963 df-oprab 3964 df-1st 4077 df-2nd 4078 df-1o 4131 df-oadd 4133 df-omul 4134 df-er 4259 df-ec 4261 df-qs 4264 df-ni 4988 df-pli 4989 df-mi 4990 df-lti 4991 df-plpq 5023 df-mpq 5024 df-enq 5025 df-nq 5026 df-plq 5027 df-mq 5028 df-rq 5029 df-ltq 5030 df-1q 5031 df-np 5074 df-1p 5075 df-plp 5076 df-mp 5077 df-ltp 5078 df-plpr 5152 df-mpr 5153 df-enr 5154 df-nr 5155 df-plr 5156 df-mr 5157 df-0r 5159 df-1r 5160 df-m1r 5161 df-c 5228 df-0 5229 df-1 5230 df-i 5231 df-r 5232 df-plus 5233 df-mul 5234 df-n0 6068 |