Metamath Proof Explorer

Theorem axia3

Description: 'And' introduction (intuitionistic logic axiom ax-ia3). (Contributed by Jim Kingdon, 21-May-2018) (New usage is discouraged.)

Ref Expression
Assertion axia3 
|- ( ph -> ( ps -> ( ph /\ ps ) ) )

Proof

Step Hyp Ref Expression
1 pm3.2 
 |-  ( ph -> ( ps -> ( ph /\ ps ) ) )