Theorem re1tbw1 1578

Description: tbw-ax1 1533 rederived from merco2 1569. (Contributed by Anthony Hart, 16-Aug-2011.) (Proof modification is discouraged.) (New usage is discouraged.)

Assertion

Ref	Expression
re1tbw1

Proof of Theorem re1tbw1

Step	Hyp	Ref	Expression
1		mercolem8 1577	. . 3
2		mercolem3 1572	. . 3
3		mercolem6 1575	. . 3
4	1, 2, 3	mpsyl 63	. 2
5		mercolem6 1575	. 2
6	4, 5	ax-mp 5	1

Syntax hints:  ->wi 4

This theorem is referenced by:  re1tbw4  1581

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 185  df-tru 1398  df-fal 1401