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| Mirrors > Home > ILE Home > Th. List > zex | Unicode version | ||
| Description: The set of integers exists. (Contributed by NM, 30-Jul-2004.) (Revised by Mario Carneiro, 17-Nov-2014.) |
| Ref | Expression |
|---|---|
| zex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnex 8156 |
. 2
| |
| 2 | zsscn 9487 |
. 2
| |
| 3 | 1, 2 | ssexi 4227 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 ax-sep 4207 ax-cnex 8123 ax-resscn 8124 |
| This theorem depends on definitions: df-bi 117 df-3or 1005 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rex 2516 df-rab 2519 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-iota 5286 df-fv 5334 df-ov 6021 df-neg 8353 df-z 9480 |
| This theorem is referenced by: dfuzi 9590 uzval 9757 uzf 9758 fzval 10245 fzf 10247 flval 10533 frec2uzrand 10668 frec2uzf1od 10669 frecfzennn 10689 uzennn 10699 hashinfom 11041 climz 11870 serclim0 11883 climaddc1 11907 climmulc2 11909 climsubc1 11910 climsubc2 11911 climle 11912 climlec2 11919 iserabs 12054 isumshft 12069 explecnv 12084 prodfclim1 12123 qnumval 12775 qdenval 12776 odzval 12832 znnen 13037 exmidunben 13065 qnnen 13070 fngsum 13489 igsumvalx 13490 mulgfvalg 13726 mulgex 13728 zringplusg 14630 zringmulr 14632 zringmpg 14639 zrhval2 14652 lmres 14991 climcncf 15327 |
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