Theorem resex 4925

Description: The restriction of a set is a set. (Contributed by Jeff Madsen, 19-Jun-2011.)

Hypothesis

Ref	Expression
resex.1	⊢ 𝐴 ∈ V

Assertion

Ref	Expression
resex	⊢ (𝐴 ↾ 𝐵) ∈ V

Proof of Theorem resex

Step	Hyp	Ref	Expression
1		resex.1	. 2 ⊢ 𝐴 ∈ V
2		resexg 4924	. 2 ⊢ (𝐴 ∈ V → (𝐴 ↾ 𝐵) ∈ V)
3	1, 2	ax-mp 5	1 ⊢ (𝐴 ↾ 𝐵) ∈ V

Syntax hints:   ∈ wcel 2136  Vcvv 2726   ↾ cres 4606

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-ext 2147  ax-sep 4100

This theorem depends on definitions:  df-bi 116  df-tru 1346  df-nf 1449  df-sb 1751  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-v 2728  df-in 3122  df-ss 3129  df-res 4616

This theorem is referenced by:  sbthlemi10  6931  finomni  7104  ctinf  12363