Theorem bdcab 15411

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 15400	. 2 |- BOUNDED y e. { x | ph }
3	2	bdelir 15409	1 |- BOUNDED { x | ph }

Syntax hints:   {cab 2179  BOUNDED wbd 15374  BOUNDED wbdc 15402

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 1460  ax-bd0 15375  ax-bdsb 15384

This theorem depends on definitions:  df-bi 117  df-clab 2180  df-bdc 15403

This theorem is referenced by:  bds  15413  bdcrab  15414  bdccsb  15422  bdcdif  15423  bdcun  15424  bdcin  15425  bdcpw  15431  bdcsn  15432  bdcuni  15438  bdcint  15439  bdciun  15440  bdciin  15441  bdcriota  15445  bj-bdfindis  15509