Theorem axia3 2589

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

Assertion

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

Proof of Theorem axia3

Step	Hyp	Ref	Expression
1		pm3.2 463	1 |- ( ph -> ( ps -> ( ph /\ ps ) ) )

Syntax hints:   -> wi 4   /\ 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)