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| Mirrors > Home > ILE Home > Th. List > zsscn | GIF version | ||
| Description: The integers are a subset of the complex numbers. (Contributed by NM, 2-Aug-2004.) |
| Ref | Expression |
|---|---|
| zsscn | ⊢ ℤ ⊆ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | zcn 9489 | . 2 ⊢ (𝑥 ∈ ℤ → 𝑥 ∈ ℂ) | |
| 2 | 1 | ssriv 3230 | 1 ⊢ ℤ ⊆ ℂ |
| Colors of variables: wff set class |
| Syntax hints: ⊆ wss 3199 ℂcc 8035 ℤcz 9484 |
| 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 2212 ax-resscn 8129 |
| This theorem depends on definitions: df-bi 117 df-3or 1005 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1810 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-rex 2515 df-rab 2518 df-v 2803 df-un 3203 df-in 3205 df-ss 3212 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-br 4090 df-iota 5288 df-fv 5336 df-ov 6026 df-neg 8358 df-z 9485 |
| This theorem is referenced by: zex 9493 divfnzn 9860 zexpcl 10822 fsumzcl 11986 fprodzcl 12193 4sqlem11 12997 zringbas 14634 zring0 14638 lmbrf 14968 lmres 15001 lgsfcl2 15764 2sqlem6 15878 |
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