| 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 8146 | . 2 ⊢ ℂ ∈ V | |
| 2 | zsscn 9477 | . 2 ⊢ ℤ ⊆ ℂ | |
| 3 | 1, 2 | ssexi 4225 | 1 ⊢ ℤ ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2200 Vcvv 2800 ℂcc 8020 ℤcz 9469 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 ax-sep 4205 ax-cnex 8113 ax-resscn 8114 |
| This theorem depends on definitions: df-bi 117 df-3or 1003 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-rex 2514 df-rab 2517 df-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-iota 5284 df-fv 5332 df-ov 6016 df-neg 8343 df-z 9470 |
| This theorem is referenced by: dfuzi 9580 uzval 9747 uzf 9748 fzval 10235 fzf 10237 flval 10522 frec2uzrand 10657 frec2uzf1od 10658 frecfzennn 10678 uzennn 10688 hashinfom 11030 climz 11843 serclim0 11856 climaddc1 11880 climmulc2 11882 climsubc1 11883 climsubc2 11884 climle 11885 climlec2 11892 iserabs 12026 isumshft 12041 explecnv 12056 prodfclim1 12095 qnumval 12747 qdenval 12748 odzval 12804 znnen 13009 exmidunben 13037 qnnen 13042 fngsum 13461 igsumvalx 13462 mulgfvalg 13698 mulgex 13700 zringplusg 14601 zringmulr 14603 zringmpg 14610 zrhval2 14623 lmres 14962 climcncf 15298 |
| Copyright terms: Public domain | W3C validator |