Theorem bdtru 16858

Description: The truth value T. is bounded. (Contributed by BJ, 3-Oct-2019.)

Assertion

Ref	Expression
bdtru	|- BOUNDED T.

Proof of Theorem bdtru

Step	Hyp	Ref	Expression
1		tru 1406	. 2 |- T.
2	1	bdth 16857	1 |- BOUNDED T.

This proof depends on syntax axioms:   T. wtru 1403  BOUNDED wbd 16838

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-bd0 16839  ax-bdim 16840  ax-bdeq 16846

This proof depends on definitions:  df-bi 117  df-tru 1405

This theorem is used by:  bdfal  16859  bdnthALT  16861