Theorem elrabd 2931

Description: Membership in a restricted class abstraction, using implicit substitution. Deduction version of elrab 2929. (Contributed by Glauco Siliprandi, 23-Oct-2021.)

Hypotheses

Ref	Expression
elrabd.1	|- ( x = A -> ( ps <-> ch ) )
elrabd.2	|- ( ph -> A e. B )
elrabd.3	|- ( ph -> ch )

Assertion

Ref	Expression
elrabd	|- ( ph -> A e. { x e. B | ps } )

Distinct variable groups:   x, A   x, B   ch, x

Allowed substitution hints:   ph( x)   ps( x)

Proof of Theorem elrabd

Step	Hyp	Ref	Expression
1		elrabd.2	. . 3 |- ( ph -> A e. B )
2		elrabd.3	. . 3 |- ( ph -> ch )
3	1, 2	jca 306	. 2 |- ( ph -> ( A e. B /\ ch ) )
4		elrabd.1	. . 3 |- ( x = A -> ( ps <-> ch ) )
5	4	elrab 2929	. 2 |- ( A e. { x e. B | ps } <-> ( A e. B /\ ch ) )
6	3, 5	sylibr 134	1 |- ( ph -> A e. { x e. B | ps } )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1373   e. wcel 2176   {crab 2488

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 711  ax-5 1470  ax-7 1471  ax-gen 1472  ax-ie1 1516  ax-ie2 1517  ax-8 1527  ax-10 1528  ax-11 1529  ax-i12 1530  ax-bndl 1532  ax-4 1533  ax-17 1549  ax-i9 1553  ax-ial 1557  ax-i5r 1558  ax-ext 2187

This theorem depends on definitions:  df-bi 117  df-tru 1376  df-nf 1484  df-sb 1786  df-clab 2192  df-cleq 2198  df-clel 2201  df-nfc 2337  df-rab 2493  df-v 2774

This theorem is referenced by:  ctssdccl  7213  suplocexprlemru  7832  suplocexprlemloc  7834  zsupssdc  10381  uzwodc  12358  nninfctlemfo  12361  lcmcllem  12389  lcmledvds  12392  phisum  12563  odzcllem  12565  pcpremul  12616  znnen  12769  ennnfonelemj0  12772  ennnfonelemg  12774  gsumress  13227  issubmd  13306  mhmeql  13324  ghmeql  13603  cdivcncfap  15076  cnopnap  15083  ivthinc  15115  limcdifap  15134  limcimolemlt  15136  dvcoapbr  15179  dvdsppwf1o  15461  2lgslem1b  15566  2omap  15932  subctctexmid  15937