Theorem imp45 597

Description: An importation inference. (Contributed by NM, 26-Apr-1994.)

Hypothesis

Ref	Expression
imp4.1

Assertion

Ref	Expression
imp45

Proof of Theorem imp45

Step	Hyp	Ref	Expression
1		imp4.1	. . 3
2	1	imp4d 592	. 2
3	2	imp 429	1

Syntax hints:  ->wi 4  /\wa 369

This theorem is referenced by:  alexsubALTlem3  20549  spansncvi  26570  atcvatlem  27304

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 185  df-an 371