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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 9973 | . 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 5380 1c1 8186 ℕcn 9313 ℤ≥cuz 9936 |
| 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 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-addass 8287 ax-distr 8289 ax-i2m1 8290 ax-0lt1 8291 ax-0id 8293 ax-rnegex 8294 ax-cnre 8296 ax-pre-ltirr 8297 ax-pre-ltwlin 8298 ax-pre-lttrn 8299 ax-pre-ltadd 8301 |
| 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 4132 df-opab 4194 df-mpt 4195 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-pnf 8368 df-mnf 8369 df-xr 8370 df-ltxr 8371 df-le 8372 df-sub 8506 df-neg 8507 df-inn 9314 df-z 9654 df-uz 9937 |
| This theorem is used by: eluzge3nn 9987 uznnssnn 9992 elnndc 10027 uzsubsubfz1 10469 elfz1end 10477 fznn 10512 fzo1fzo0n0 10611 elfzonlteqm1 10644 rebtwn2z 10705 nnsinds 10902 exp3vallem 10997 exp1 11002 expp1 11003 facp1 11189 faclbnd 11200 bcn1 11217 resqrexlemf1 11795 resqrexlemfp1 11796 summodclem3 12171 summodclem2a 12172 fsum3 12178 fsumcl2lem 12189 fsumadd 12197 sumsnf 12200 fsummulc2 12239 trireciplem 12291 geo2lim 12307 geoisum1 12310 geoisum1c 12311 cvgratnnlemnexp 12315 cvgratz 12323 prodmodclem3 12366 prodmodclem2a 12367 fprodseq 12374 fprodmul 12382 prodsnf 12383 fprodfac 12406 dvdsfac 12651 gcdsupex 12758 gcdsupcl 12759 prmind2 12922 eulerthlemrprm 13035 eulerthlema 13036 pcmpt 13150 prmunb 13169 ballotfilemfp1 13288 ballotfilemfc0 13289 ballotfilemfcc 13290 ballotfilem4 13298 ballotfilemic 13307 ballotfilem1c 13308 nninfdclemp1 13398 structfn 13428 mulgnngzsum 13988 mulg1 13990 mulgnndir 14012 gsumvalfi 14241 logfac 16143 prmorcht 16299 bpos1 16327 bposlem5 16332 lgsval2lem 16351 lgsdir 16376 lgsdilem2 16377 lgsdi 16378 lgsne0 16379 2lgslem1a 16429 2sqlem10 16466 clwwlkccatlem 16863 cvgcmp2nlemabs 17304 trilpolemisumle 17311 nconstwlpolem0 17337 |
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