Theorem re1tbw2 1579

Description: tbw-ax2 1534 rederived from merco2 1569. (Contributed by Anthony Hart, 16-Aug-2011.) (Proof modification is discouraged.) (New usage is discouraged.)

Assertion

Ref	Expression
re1tbw2

Proof of Theorem re1tbw2

Step	Hyp	Ref	Expression
1		mercolem1 1570	. . . 4
2		mercolem1 1570	. . . 4
3	1, 2	ax-mp 5	. . 3
4		mercolem6 1575	. . 3
5	3, 4	ax-mp 5	. 2
6		mercolem6 1575	. 2
7	5, 6	ax-mp 5	1

Syntax hints:  ->wi 4

This theorem is referenced by:  re1tbw4  1581  ltrneq  35873

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