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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 9958 | . 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 9304 ℤ≥cuz 9921 |
| 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 8499 df-neg 8500 df-inn 9305 df-z 9645 df-uz 9922 |
| This theorem is used by: eluzge3nn 9972 uznnssnn 9977 elnndc 10012 uzsubsubfz1 10453 elfz1end 10461 fznn 10496 fzo1fzo0n0 10595 elfzonlteqm1 10628 rebtwn2z 10689 nnsinds 10882 exp3vallem 10977 exp1 10982 expp1 10983 facp1 11168 faclbnd 11179 bcn1 11196 resqrexlemf1 11774 resqrexlemfp1 11775 summodclem3 12147 summodclem2a 12148 fsum3 12154 fsumcl2lem 12165 fsumadd 12173 sumsnf 12176 fsummulc2 12215 trireciplem 12267 geo2lim 12283 geoisum1 12286 geoisum1c 12287 cvgratnnlemnexp 12291 cvgratz 12299 prodmodclem3 12342 prodmodclem2a 12343 fprodseq 12350 fprodmul 12358 prodsnf 12359 fprodfac 12382 dvdsfac 12627 gcdsupex 12734 gcdsupcl 12735 prmind2 12898 eulerthlemrprm 13007 eulerthlema 13008 pcmpt 13122 prmunb 13141 ballotfilemfp1 13231 ballotfilemfc0 13232 ballotfilemfcc 13233 ballotfilem4 13241 ballotfilemic 13250 ballotfilem1c 13251 nninfdclemp1 13341 structfn 13371 mulgnngzsum 13930 mulg1 13932 mulgnndir 13954 gsumvalfi 14152 logfac 15995 lgsval2lem 16129 lgsdir 16154 lgsdilem2 16155 lgsdi 16156 lgsne0 16157 2lgslem1a 16207 2sqlem10 16244 clwwlkccatlem 16641 cvgcmp2nlemabs 17081 trilpolemisumle 17087 nconstwlpolem0 17113 |
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