Theorem ralrimdv 2629

Description: Inference from Theorem 19.21 of [Margaris] p. 90. (Restricted quantifier version.) (Contributed by NM, 27-May-1998.)

Hypothesis

Ref	Expression
ralrimdv.1	|- ( ph -> ( ps -> ( x e. A -> ch ) ) )

Assertion

Ref	Expression
ralrimdv	|- ( ph -> ( ps -> A. x e. A ch ) )

Distinct variable groups:   ph, x   ps, x

Allowed substitution hints:   ch( x)   A( x)

Proof of Theorem ralrimdv

Step	Hyp	Ref	Expression
1		nfv 1581	. 2 |- F/ x ph
2		nfv 1581	. 2 |- F/ x ps
3		ralrimdv.1	. 2 |- ( ph -> ( ps -> ( x e. A -> ch ) ) )
4	1, 2, 3	ralrimd 2628	1 |- ( ph -> ( ps -> A. x e. A ch ) )

This proof depends on syntax axioms:   -> wi 4   e. wcel 2209   A.wral 2528

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-5 1500  ax-gen 1502  ax-4 1563  ax-17 1579

This proof depends on definitions:  df-bi 117  df-nf 1514  df-ral 2533

This theorem is used by:  ralrimdva  2630  ralrimivv  2631  nneneq  7158  fzrevral  10512  islss4  14719  topbas  15168  neipsm  15255  cnpnei  15320  metcnp3  15612  mpomulcn  15667  lealltlt1  16751  lealltlt2  16752