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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 9587 | . 2 ⊢ (𝑥 ∈ ℤ → 𝑥 ∈ ℂ) | |
| 2 | 1 | ssriv 3244 | 1 ⊢ ℤ ⊆ ℂ |
| Colors of variables: wff set class |
| Syntax hints: ⊆ wss 3213 ℂcc 8130 ℤcz 9582 |
| 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 2216 ax-resscn 8224 |
| 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 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-rex 2528 df-rab 2531 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-iota 5314 df-fv 5362 df-ov 6055 df-neg 8452 df-z 9583 |
| This theorem is referenced by: zex 9591 divfnzn 9959 zexpcl 10923 fsumzcl 12096 fprodzcl 12303 4sqlem11 13107 zringbas 14793 zring0 14797 lmbrf 15129 lmres 15162 lgsfcl2 15928 2sqlem6 16042 |
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