| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > zex | GIF version | ||
| Description: The set of integers exists. (Contributed by NM, 30-Jul-2004.) (Revised by Mario Carneiro, 17-Nov-2014.) |
| Ref | Expression |
|---|---|
| zex | ⊢ ℤ ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnex 8309 | . 2 ⊢ ℂ ∈ V | |
| 2 | zsscn 9663 | . 2 ⊢ ℤ ⊆ ℂ | |
| 3 | 1, 2 | ssexi 4273 | 1 ⊢ ℤ ∈ V |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 Vcvv 2821 ℂcc 8183 ℤcz 9655 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 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-ext 2220 ax-sep 4251 ax-cnex 8276 ax-resscn 8277 |
| This proof depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-rab 2537 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-iota 5340 df-fv 5388 df-ov 6091 df-neg 8507 df-z 9656 |
| This theorem is used by: dfuzi 9767 uzval 9939 uzf 9940 fzval 10430 fzf 10432 flval 10724 frec2uzrand 10863 frec2uzf1od 10864 frecfzennn 10884 uzennn 10894 hashinfom 11239 climz 12083 serclim0 12096 climaddc1 12120 climmulc2 12122 climsubc1 12123 climsubc2 12124 climle 12125 climlec2 12132 iserabs 12267 isumshft 12282 explecnv 12297 prodfclim1 12336 qnumval 12990 qdenval 12991 odzval 13049 ballotfilemfval 13287 znnen 13347 exmidunben 13375 qnnen 13380 fngzsum 13767 gzsumvalx 13768 mulgfvalg 13983 mulgex 13985 zringplusg 15041 zringmulr 15043 zringmpg 15050 zrhval2 15063 lmres 15474 climcncf 15810 |
| Copyright terms: Public domain | W3C validator |