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| Mirrors > Home > ILE Home > Th. List > elnnuz | GIF version | ||
| Description: A positive integer expressed as a member of an upper set of integers. (Contributed by NM, 6-Jun-2006.) |
| Ref | Expression |
|---|---|
| elnnuz | ⊢ (𝑁 ∈ ℕ ↔ 𝑁 ∈ (ℤ≥‘1)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnuz 9967 | . 2 ⊢ ℕ = (ℤ≥‘1) | |
| 2 | 1 | eleq2i 2305 | 1 ⊢ (𝑁 ∈ ℕ ↔ 𝑁 ∈ (ℤ≥‘1)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ↔ wb 105 ∈ wcel 2209 ‘cfv 5377 1c1 8180 ℕcn 9306 ℤ≥cuz 9930 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 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-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-cnex 8270 ax-resscn 8271 ax-1cn 8272 ax-1re 8273 ax-icn 8274 ax-addcl 8275 ax-addrcl 8276 ax-mulcl 8277 ax-addcom 8279 ax-addass 8281 ax-distr 8283 ax-i2m1 8284 ax-0lt1 8285 ax-0id 8287 ax-rnegex 8288 ax-cnre 8290 ax-pre-ltirr 8291 ax-pre-ltwlin 8292 ax-pre-lttrn 8293 ax-pre-ltadd 8295 |
| This proof depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-iota 5337 df-fun 5379 df-fv 5385 df-riota 6038 df-ov 6088 df-oprab 6089 df-mpo 6090 df-pnf 8362 df-mnf 8363 df-xr 8364 df-ltxr 8365 df-le 8366 df-sub 8500 df-neg 8501 df-inn 9307 df-z 9649 df-uz 9931 |
| This theorem is used by: eluzge3nn 9981 uznnssnn 9986 elnndc 10021 uzsubsubfz1 10463 elfz1end 10471 fznn 10506 fzo1fzo0n0 10605 elfzonlteqm1 10638 rebtwn2z 10699 nnsinds 10895 exp3vallem 10990 exp1 10995 expp1 10996 facp1 11182 faclbnd 11193 bcn1 11210 resqrexlemf1 11788 resqrexlemfp1 11789 summodclem3 12163 summodclem2a 12164 fsum3 12170 fsumcl2lem 12181 fsumadd 12189 sumsnf 12192 fsummulc2 12231 trireciplem 12283 geo2lim 12299 geoisum1 12302 geoisum1c 12303 cvgratnnlemnexp 12307 cvgratz 12315 prodmodclem3 12358 prodmodclem2a 12359 fprodseq 12366 fprodmul 12374 prodsnf 12375 fprodfac 12398 dvdsfac 12643 gcdsupex 12750 gcdsupcl 12751 prmind2 12914 eulerthlemrprm 13027 eulerthlema 13028 pcmpt 13142 prmunb 13161 ballotfilemfp1 13280 ballotfilemfc0 13281 ballotfilemfcc 13282 ballotfilem4 13290 ballotfilemic 13299 ballotfilem1c 13300 nninfdclemp1 13390 structfn 13420 mulgnngzsum 13979 mulg1 13981 mulgnndir 14003 gsumvalfi 14201 logfac 16048 bpos1 16208 bposlem5 16213 lgsval2lem 16227 lgsdir 16252 lgsdilem2 16253 lgsdi 16254 lgsne0 16255 2lgslem1a 16305 2sqlem10 16342 clwwlkccatlem 16739 cvgcmp2nlemabs 17179 trilpolemisumle 17185 nconstwlpolem0 17211 |
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