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Theorem gzcn 16952
Description: A gaussian integer is a complex number. (Contributed by Mario Carneiro, 14-Jul-2014.)
Assertion
Ref Expression
gzcn (𝐴 ∈ ℤ[i] → 𝐴 ∈ ℂ)

Proof of Theorem gzcn
StepHypRef Expression
1 elgz 16951 . 2 (𝐴 ∈ ℤ[i] ↔ (𝐴 ∈ ℂ ∧ (ℜ‘𝐴) ∈ ℤ ∧ (ℑ‘𝐴) ∈ ℤ))
21simp1bi 1145 1 (𝐴 ∈ ℤ[i] → 𝐴 ∈ ℂ)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2108  cfv 6531  cc 11127  cz 12588  cre 15116  cim 15117  ℤ[i]cgz 16949
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-ext 2707
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-sb 2065  df-clab 2714  df-cleq 2727  df-clel 2809  df-rab 3416  df-v 3461  df-dif 3929  df-un 3931  df-ss 3943  df-nul 4309  df-if 4501  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-br 5120  df-iota 6484  df-fv 6539  df-gz 16950
This theorem is referenced by:  gznegcl  16955  gzcjcl  16956  gzaddcl  16957  gzmulcl  16958  gzsubcl  16960  gzabssqcl  16961  4sqlem4a  16971  4sqlem4  16972  mul4sqlem  16973  mul4sq  16974  4sqlem12  16976  4sqlem17  16981  gzsubrg  21389  gzrngunitlem  21400  gzrngunit  21401  2sqlem2  27381  mul2sq  27382  2sqlem3  27383  cntotbnd  37820
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