Metamath Proof Explorer


Theorem syl5imp

Description: Closed form of syl5 . Derived automatically from syl5impVD . (Contributed by Alan Sare, 31-Dec-2011) (Proof modification is discouraged.) (New usage is discouraged.)

Ref Expression
Assertion syl5imp
|- ( ( ph -> ( ps -> ch ) ) -> ( ( th -> ps ) -> ( ph -> ( th -> ch ) ) ) )

Proof

Step Hyp Ref Expression
1 pm2.04
 |-  ( ( ph -> ( ps -> ch ) ) -> ( ps -> ( ph -> ch ) ) )
2 1 imim2d
 |-  ( ( ph -> ( ps -> ch ) ) -> ( ( th -> ps ) -> ( th -> ( ph -> ch ) ) ) )
3 2 com34
 |-  ( ( ph -> ( ps -> ch ) ) -> ( ( th -> ps ) -> ( ph -> ( th -> ch ) ) ) )