Theorem bdctp 14709

Description: The unordered triple of three setvars is bounded. (Contributed by BJ, 16-Oct-2019.)

Assertion

Ref	Expression
bdctp	|- BOUNDED { x , y , z }

Proof of Theorem bdctp

Step	Hyp	Ref	Expression
1		bdcpr 14708	. . 3 |- BOUNDED { x , y }
2		bdcsn 14707	. . 3 |- BOUNDED { z }
3	1, 2	bdcun 14699	. 2 |- BOUNDED ( { x , y } u. { z } )
4		df-tp 3602	. 2 |- { x , y , z } = ( { x , y } u. { z } )
5	3, 4	bdceqir 14681	1 |- BOUNDED { x , y , z }

Syntax hints:   u. cun 3129   {csn 3594   {cpr 3595   {ctp 3596  BOUNDED wbdc 14677

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-5 1447  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-4 1510  ax-17 1526  ax-ial 1534  ax-ext 2159  ax-bd0 14650  ax-bdor 14653  ax-bdeq 14657  ax-bdsb 14659

This theorem depends on definitions:  df-bi 117  df-clab 2164  df-cleq 2170  df-clel 2173  df-un 3135  df-sn 3600  df-pr 3601  df-tp 3602  df-bdc 14678

This theorem is referenced by: (None)