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| Description: The set of natural numbers exists. |
| Ref | Expression |
|---|---|
| nnex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | reex 5466 |
. 2
| |
| 2 | nnssre 6072 |
. 2
| |
| 3 | 1, 2 | ssexi 2794 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: nnind 6082 seq1val 6677 ser1f 6693 ser1cl1i 6695 ser1recli 6696 ser1refi 6697 ser1f2i 6699 ser11i 6700 ser1p1i 6701 ser1monoi 6702 ser1add2i 6703 ser1addi 6704 exp1 6768 expp1 6769 ser1absdiflem 7132 facnn 7136 fac0 7137 fac1 7138 facp1 7139 ser1mulci 7263 climfnn 7295 climaddci 7335 climmulci 7336 caucvg3ai 7367 caucvg3lem 7369 ser1f0i 7373 ser1consti 7374 ser1cmpi 7377 ser1cmp2i 7380 cvgcmp2clem 7385 cvgcmp2clemOLD 7386 infcvglem1 7425 infcvgi 7428 explecnv 7438 geolim1i 7443 geoisum1 7449 geoisum1c 7450 erelem2 7525 erelem6 7529 ege2lem2 7533 ege2le3lem2 7534 acdc3lem 7697 acdc4lem1 7699 acdc2lem2 7701 acdc5lem2 7704 acdclem 7706 nnenom 7710 xpnnen 7711 xpomen 7712 qnnen 7715 unbenlem 7716 ruclem5 7726 metelcls 8176 metcnp4 8181 metcn4i 8183 addcn 8197 subcn 8198 mulcn 8199 gx1 8318 gxnn0suc 8320 vacnlem6 8587 sqcn 8589 nmounbseqi 8694 nmobndseqi 8695 minveclem33 8837 minveceu 8843 h2hcau 9124 h2hlm 9125 hcau 9327 hlim2 9336 chlimi 9380 hlim0 9381 hlimcaui 9383 hlimunii 9385 occllem6 9454 projlem17 9478 projlem25 9486 projlem26 9487 osumlem5 9860 isppm 10917 sdclem2 11876 sdc 11877 geomcau 11914 tlmval 11964 tlmbr 11965 heiborlem7 12017 heiborlem10 12020 bfplem1 12054 bfplem2 12055 bfplem3 12056 bfplem8 12061 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-9 1001 ax-10 1002 ax-11 1003 ax-12 1004 ax-13 1005 ax-14 1006 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 ax-rep 2767 ax-sep 2777 ax-nul 2784 ax-pow 2818 ax-pr 2855 ax-un 3089 ax-inf2 4770 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-3or 782 df-3an 783 df-ex 1017 df-sb 1209 df-eu 1421 df-mo 1422 df-clab 1506 df-cleq 1511 df-clel 1514 df-ne 1630 df-ral 1695 df-rex 1696 df-reu 1697 df-rab 1698 df-v 1858 df-sbc 1987 df-csb 2052 df-dif 2101 df-un 2102 df-in 2103 df-ss 2105 df-pss 2107 df-nul 2333 df-if 2416 df-pw 2459 df-sn 2470 df-pr 2471 df-tp 2473 df-op 2474 df-uni 2570 df-int 2601 df-iun 2635 df-br 2693 df-opab 2741 df-tr 2755 df-eprel 2910 df-id 2913 df-po 2918 df-so 2929 df-fr 2947 df-we 2962 df-ord 2978 df-on 2979 df-lim 2980 df-suc 2981 df-om 3219 df-xp 3265 df-rel 3266 df-cnv 3267 df-co 3268 df-dm 3269 df-rn 3270 df-res 3271 df-ima 3272 df-fun 3273 df-fn 3274 df-f 3275 df-fv 3279 df-opr 4023 df-oprab 4024 df-1st 4140 df-2nd 4141 df-rdg 4233 df-1o 4269 df-oadd 4271 df-omul 4272 df-er 4401 df-ec 4403 df-qs 4406 df-ni 5154 df-pli 5155 df-mi 5156 df-lti 5157 df-plpq 5189 df-mpq 5190 df-enq 5191 df-nq 5192 df-plq 5193 df-mq 5194 df-rq 5195 df-ltq 5196 df-1q 5197 df-np 5240 df-1p 5241 df-plp 5242 df-mp 5243 df-ltp 5244 df-plpr 5318 df-mpr 5319 df-enr 5320 df-nr 5321 df-plr 5322 df-mr 5323 df-ltr 5324 df-0r 5325 df-1r 5326 df-m1r 5327 df-c 5394 df-0 5395 df-1 5396 df-i 5397 df-r 5398 df-plus 5399 df-mul 5400 df-sub 5510 df-neg 5512 df-n 6070 |