Theorem mdandyvr7 41139

Description: Given the equivalences set in the hypotheses, there exist a proof where ch, th, ta, et match ze, si accordingly. (Contributed by Jarvin Udandy, 7-Sep-2016.)

Hypotheses

Ref	Expression
mdandyvr7.1	|- ( ph <-> ze )
mdandyvr7.2	|- ( ps <-> si )
mdandyvr7.3	|- ( ch <-> ps )
mdandyvr7.4	|- ( th <-> ps )
mdandyvr7.5	|- ( ta <-> ps )
mdandyvr7.6	|- ( et <-> ph )

Assertion

Ref	Expression
mdandyvr7	|- ( ( ( ( ch <-> si ) /\ ( th <-> si ) ) /\ ( ta <-> si ) ) /\ ( et <-> ze ) )

Proof of Theorem mdandyvr7

Step	Hyp	Ref	Expression
1		mdandyvr7.3	. . . . 5 |- ( ch <-> ps )
2		mdandyvr7.2	. . . . 5 |- ( ps <-> si )
3	1, 2	bitri 264	. . . 4 |- ( ch <-> si )
4		mdandyvr7.4	. . . . 5 |- ( th <-> ps )
5	4, 2	bitri 264	. . . 4 |- ( th <-> si )
6	3, 5	pm3.2i 471	. . 3 |- ( ( ch <-> si ) /\ ( th <-> si ) )
7		mdandyvr7.5	. . . 4 |- ( ta <-> ps )
8	7, 2	bitri 264	. . 3 |- ( ta <-> si )
9	6, 8	pm3.2i 471	. 2 |- ( ( ( ch <-> si ) /\ ( th <-> si ) ) /\ ( ta <-> si ) )
10		mdandyvr7.6	. . 3 |- ( et <-> ph )
11		mdandyvr7.1	. . 3 |- ( ph <-> ze )
12	10, 11	bitri 264	. 2 |- ( et <-> ze )
13	9, 12	pm3.2i 471	1 |- ( ( ( ( ch <-> si ) /\ ( th <-> si ) ) /\ ( ta <-> si ) ) /\ ( et <-> ze ) )

Syntax hints:   <-> wb 196   /\ wa 384

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 197  df-an 386

This theorem is referenced by:  mdandyvr8  41140