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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 8134 |
. 2
| |
| 2 | zsscn 9465 |
. 2
| |
| 3 | 1, 2 | ssexi 4222 |
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 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 4202 ax-cnex 8101 ax-resscn 8102 |
| 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 2801 df-un 3201 df-in 3203 df-ss 3210 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-iota 5278 df-fv 5326 df-ov 6010 df-neg 8331 df-z 9458 |
| This theorem is referenced by: dfuzi 9568 uzval 9735 uzf 9736 fzval 10218 fzf 10220 flval 10504 frec2uzrand 10639 frec2uzf1od 10640 frecfzennn 10660 uzennn 10670 hashinfom 11012 climz 11819 serclim0 11832 climaddc1 11856 climmulc2 11858 climsubc1 11859 climsubc2 11860 climle 11861 climlec2 11868 iserabs 12002 isumshft 12017 explecnv 12032 prodfclim1 12071 qnumval 12723 qdenval 12724 odzval 12780 znnen 12985 exmidunben 13013 qnnen 13018 fngsum 13437 igsumvalx 13438 mulgfvalg 13674 mulgex 13676 zringplusg 14577 zringmulr 14579 zringmpg 14586 zrhval2 14599 lmres 14938 climcncf 15274 |
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