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Theorem evenz 48395
Description: An even number is an integer. (Contributed by AV, 14-Jun-2020.)
Assertion
Ref Expression
evenz (𝑍 ∈ Even → 𝑍 ∈ ℤ)

Proof of Theorem evenz
StepHypRef Expression
1 iseven 48393 . 2 (𝑍 ∈ Even ↔ (𝑍 ∈ ℤ ∧ (𝑍 / 2) ∈ ℤ))
21simplbi 501 1 (𝑍 ∈ Even → 𝑍 ∈ ℤ)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2143  (class class class)co 7410   / cdiv 11866  2c2 12290  cz 12586   Even ceven 48389
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-ext 2735
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-sb 2097  df-clab 2742  df-cleq 2755  df-clel 2838  df-rab 3417  df-v 3457  df-dif 3908  df-un 3910  df-ss 3922  df-nul 4287  df-if 4488  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-br 5110  df-iota 6492  df-fv 6544  df-ov 7413  df-even 48391
This theorem is referenced by:  evenm1odd  48404  evenp1odd  48405  bits0eALTV  48445  opeoALTV  48449  omeoALTV  48451  epoo  48468  emoo  48469  epee  48470  emee  48471  evensumeven  48472  evenltle  48482  even3prm2  48484  mogoldbblem  48485  sbgoldbalt  48546  sgoldbeven3prm  48548  mogoldbb  48550  bgoldbachlt  48578  tgblthelfgott  48580
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