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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 7768 | . 2 ⊢ ℂ ∈ V | |
2 | zsscn 9086 | . 2 ⊢ ℤ ⊆ ℂ | |
3 | 1, 2 | ssexi 4074 | 1 ⊢ ℤ ∈ V |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1481 Vcvv 2689 ℂcc 7642 ℤcz 9078 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-cnex 7735 ax-resscn 7736 |
This theorem depends on definitions: df-bi 116 df-3or 964 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-rex 2423 df-rab 2426 df-v 2691 df-un 3080 df-in 3082 df-ss 3089 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-br 3938 df-iota 5096 df-fv 5139 df-ov 5785 df-neg 7960 df-z 9079 |
This theorem is referenced by: dfuzi 9185 uzval 9352 uzf 9353 fzval 9823 fzf 9825 flval 10076 frec2uzrand 10209 frec2uzf1od 10210 frecfzennn 10230 uzennn 10240 hashinfom 10556 climz 11093 serclim0 11106 climaddc1 11130 climmulc2 11132 climsubc1 11133 climsubc2 11134 climle 11135 climlec2 11142 iserabs 11276 isumshft 11291 explecnv 11306 prodfclim1 11345 qnumval 11899 qdenval 11900 znnen 11947 exmidunben 11975 qnnen 11980 lmres 12456 climcncf 12779 |
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