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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 9974 | . 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 9937 |
| 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 9656 df-uz 9938 |
| This theorem is used by: eluzge3nn 9988 uznnssnn 9993 elnndc 10028 uzsubsubfz1 10470 elfz1end 10478 fznn 10513 fzo1fzo0n0 10612 elfzonlteqm1 10645 rebtwn2z 10706 nnsinds 10903 exp3vallem 10998 exp1 11003 expp1 11004 facp1 11190 faclbnd 11201 bcn1 11218 resqrexlemf1 11796 resqrexlemfp1 11797 summodclem3 12172 summodclem2a 12173 fsum3 12179 fsumcl2lem 12190 fsumadd 12198 sumsnf 12201 fsummulc2 12240 trireciplem 12292 geo2lim 12308 geoisum1 12311 geoisum1c 12312 cvgratnnlemnexp 12316 cvgratz 12324 prodmodclem3 12367 prodmodclem2a 12368 fprodseq 12375 fprodmul 12383 prodsnf 12384 fprodfac 12407 dvdsfac 12652 gcdsupex 12759 gcdsupcl 12760 prmind2 12923 eulerthlemrprm 13036 eulerthlema 13037 pcmpt 13151 prmunb 13170 ballotfilemfp1 13289 ballotfilemfc0 13290 ballotfilemfcc 13291 ballotfilem4 13299 ballotfilemic 13308 ballotfilem1c 13309 nninfdclemp1 13399 structfn 13429 mulgnngzsum 13989 mulg1 13991 mulgnndir 14013 gsumvalfi 14242 logfac 16126 prmorcht 16282 bpos1 16310 bposlem5 16315 lgsval2lem 16334 lgsdir 16359 lgsdilem2 16360 lgsdi 16361 lgsne0 16362 2lgslem1a 16412 2sqlem10 16449 clwwlkccatlem 16846 cvgcmp2nlemabs 17287 trilpolemisumle 17294 nconstwlpolem0 17320 |
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