| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > gzcn | GIF version | ||
| Description: A gaussian integer is a complex number. (Contributed by Mario Carneiro, 14-Jul-2014.) |
| Ref | Expression |
|---|---|
| gzcn | ⊢ (𝐴 ∈ ℤ[i] → 𝐴 ∈ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elgz 12769 | . 2 ⊢ (𝐴 ∈ ℤ[i] ↔ (𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ ℤ ∧ (ℑ‘𝐴) ∈ ℤ)) | |
| 2 | 1 | simp1bi 1015 | 1 ⊢ (𝐴 ∈ ℤ[i] → 𝐴 ∈ ℂ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2177 ‘cfv 5280 ℂcc 7943 ℤcz 9392 ℜcre 11226 ℑcim 11227 ℤ[i]cgz 12767 |
| 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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2188 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-rex 2491 df-rab 2494 df-v 2775 df-un 3174 df-sn 3644 df-pr 3645 df-op 3647 df-uni 3857 df-br 4052 df-iota 5241 df-fv 5288 df-gz 12768 |
| This theorem is referenced by: gznegcl 12773 gzcjcl 12774 gzaddcl 12775 gzmulcl 12776 gzsubcl 12778 gzabssqcl 12779 4sqlem4a 12789 4sqlem4 12790 mul4sqlem 12791 mul4sq 12792 4sqlem12 12800 4sqlem17 12805 gzsubrg 14419 2sqlem1 15666 2sqlem2 15667 mul2sq 15668 2sqlem3 15669 |
| Copyright terms: Public domain | W3C validator |