Theorem bdcab 15495

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 15484	. 2 |- BOUNDED y e. { x | ph }
3	2	bdelir 15493	1 |- BOUNDED { x | ph }

Syntax hints:   {cab 2182  BOUNDED wbd 15458  BOUNDED wbdc 15486

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 1463  ax-bd0 15459  ax-bdsb 15468

This theorem depends on definitions:  df-bi 117  df-clab 2183  df-bdc 15487

This theorem is referenced by:  bds  15497  bdcrab  15498  bdccsb  15506  bdcdif  15507  bdcun  15508  bdcin  15509  bdcpw  15515  bdcsn  15516  bdcuni  15522  bdcint  15523  bdciun  15524  bdciin  15525  bdcriota  15529  bj-bdfindis  15593