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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 8251 |
. 2
| |
| 2 | zsscn 9585 |
. 2
| |
| 3 | 1, 2 | ssexi 4248 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 ax-sep 4228 ax-cnex 8218 ax-resscn 8219 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-rex 2526 df-rab 2529 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-br 4110 df-iota 5312 df-fv 5360 df-ov 6053 df-neg 8447 df-z 9578 |
| This theorem is referenced by: dfuzi 9688 uzval 9855 uzf 9856 fzval 10344 fzf 10346 flval 10632 frec2uzrand 10767 frec2uzf1od 10768 frecfzennn 10788 uzennn 10798 hashinfom 11141 climz 11977 serclim0 11990 climaddc1 12014 climmulc2 12016 climsubc1 12017 climsubc2 12018 climle 12019 climlec2 12026 iserabs 12161 isumshft 12176 explecnv 12191 prodfclim1 12230 qnumval 12882 qdenval 12883 odzval 12939 znnen 13149 exmidunben 13177 qnnen 13182 fngsum 13601 igsumvalx 13602 mulgfvalg 13838 mulgex 13840 zringplusg 14745 zringmulr 14747 zringmpg 14754 zrhval2 14767 lmres 15113 climcncf 15449 |
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