Axiom ax-bdor 17008

Description: The disjunction of two bounded formulas is bounded. (Contributed by BJ, 25-Sep-2019.)

Hypotheses

Ref	Expression
bdim.1	|- BOUNDED ph
bdim.2	|- BOUNDED ps

Assertion

Ref	Expression
ax-bdor	|- BOUNDED ( ph \/ ps )

Detailed syntax breakdown of Axiom ax-bdor

Step	Hyp	Ref	Expression
1		wph	. . 3 wff ph
2		wps	. . 3 wff ps
3	1, 2	wo 720	. 2 wff ( ph \/ ps )
4	3	wbd 17004	1 wff BOUNDED ( ph \/ ps )

This axiom is used by:  bddc  17020  bd3or  17021  bdxor  17028  bdcun  17054  bdop  17067  bj-zfpair2  17102  bj-nn0suc0  17142