Theorem rspec 2427

Description: Specialization rule for restricted quantification. (Contributed by NM, 19-Nov-1994.)

Hypothesis

Ref	Expression
rspec.1	|- A. x e. A ph

Assertion

Ref	Expression
rspec	|- ( x e. A -> ph )

Proof of Theorem rspec

Step	Hyp	Ref	Expression
1		rspec.1	. 2 |- A. x e. A ph
2		rsp 2423	. 2 |- ( A. x e. A ph -> ( x e. A -> ph ) )
3	1, 2	ax-mp 7	1 |- ( x e. A -> ph )

Syntax hints:   -> wi 4   e. wcel 1438   A.wral 2359

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-4 1445

This theorem depends on definitions:  df-bi 115  df-ral 2364

This theorem is referenced by:  rspec2  2462  vtoclri  2694  isarep2  5095  ecopover  6380  ecopoverg  6383  indstr  9071