Theorem zfausab 4131

Description: Separation Scheme (Aussonderung) in terms of a class abstraction. (Contributed by NM, 8-Jun-1994.)

Hypothesis

Ref	Expression
zfausab.1	|- A e. _V

Assertion

Ref	Expression
zfausab	|- { x | ( x e. A /\ ph ) } e. _V

Distinct variable group:   x, A

Allowed substitution hint:   ph( x)

Proof of Theorem zfausab

Step	Hyp	Ref	Expression
1		zfausab.1	. 2 |- A e. _V
2		ssab2 3231	. 2 |- { x | ( x e. A /\ ph ) } C_ A
3	1, 2	ssexi 4127	1 |- { x | ( x e. A /\ ph ) } e. _V

Syntax hints:   /\ wa 103   e. wcel 2141   {cab 2156   _Vcvv 2730

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 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-ext 2152  ax-sep 4107

This theorem depends on definitions:  df-bi 116  df-tru 1351  df-nf 1454  df-sb 1756  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-v 2732  df-in 3127  df-ss 3134

This theorem is referenced by: (None)