Theorem impexpdcom 38721

Description: The following User's Proof is a Virtual Deduction proof completed automatically by the tools program completeusersproof.cmd, which invokes Mel L. O'Cat's mmj2 and Norm Megill's Metamath Proof Assistant. The completed Virtual Deduction Proof (not shown) was minimized. The minimized proof is shown. (Contributed by Alan Sare, 18-Mar-2012.) (Proof modification is discouraged.) (New usage is discouraged.)

1::	|- ( ( ph -> ( ( ps /\ ch ) -> th ) ) <-> ( ph -> ( ps -> ( ch -> th ) ) ) )
2::	|- ( ( ps -> ( ch -> ( ph -> th ) ) ) <-> ( ph -> ( ps -> ( ch -> th ) ) ) )
qed:1,2:	|- ( ( ph -> ( ( ps /\ ch ) -> th ) ) <-> ( ps -> ( ch -> ( ph -> th ) ) ) )

Assertion

Ref	Expression
impexpdcom	|- ( ( ph -> ( ( ps /\ ch ) -> th ) ) <-> ( ps -> ( ch -> ( ph -> th ) ) ) )

Proof of Theorem impexpdcom

Step	Hyp	Ref	Expression
1		impexpd 38719	. 2 |- ( ( ph -> ( ( ps /\ ch ) -> th ) ) <-> ( ph -> ( ps -> ( ch -> th ) ) ) )
2		com3rgbi 38720	. 2 |- ( ( ps -> ( ch -> ( ph -> th ) ) ) <-> ( ph -> ( ps -> ( ch -> th ) ) ) )
3	1, 2	bitr4i 267	1 |- ( ( ph -> ( ( ps /\ ch ) -> th ) ) <-> ( ps -> ( ch -> ( ph -> th ) ) ) )

Syntax hints:   -> wi 4   <-> 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: (None)