Theorem bdcab 15822

Description: A class defined by class abstraction using a bounded formula is bounded. (Contributed by BJ, 6-Oct-2019.)

Hypothesis

Ref	Expression
bdcab.1	|- BOUNDED ph

Assertion

Ref	Expression
bdcab	|- BOUNDED { x | ph }

Proof of Theorem bdcab

Dummy variable y is distinct from all other variables.

Step	Hyp	Ref	Expression
1		bdcab.1	. . 3 |- BOUNDED ph
2	1	bdab 15811	. 2 |- BOUNDED y e. { x | ph }
3	2	bdelir 15820	1 |- BOUNDED { x | ph }

Syntax hints:   {cab 2191  BOUNDED wbd 15785  BOUNDED wbdc 15813

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-gen 1472  ax-bd0 15786  ax-bdsb 15795

This theorem depends on definitions:  df-bi 117  df-clab 2192  df-bdc 15814

This theorem is referenced by:  bds  15824  bdcrab  15825  bdccsb  15833  bdcdif  15834  bdcun  15835  bdcin  15836  bdcpw  15842  bdcsn  15843  bdcuni  15849  bdcint  15850  bdciun  15851  bdciin  15852  bdcriota  15856  bj-bdfindis  15920