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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 9632 | . 2 ⊢ (𝑥 ∈ ℤ → 𝑥 ∈ ℂ) | |
| 2 | 1 | ssriv 3252 | 1 ⊢ ℤ ⊆ ℂ |
| Colors of variables: wff set class |
| Syntax hints: ⊆ wss 3220 ℂcc 8171 ℤcz 9627 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-resscn 8265 |
| This theorem depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-rab 2537 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-iota 5335 df-fv 5383 df-ov 6082 df-neg 8494 df-z 9628 |
| This theorem is referenced by: zex 9636 divfnzn 10004 zexpcl 10974 fsumzcl 12152 fprodzcl 12359 4sqlem11 13163 zringbas 14914 zring0 14918 lmbrf 15299 lmres 15332 lgsfcl2 16108 2sqlem6 16222 |
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