Theorem imim3i 59

Description: Inference adding three nested antecedents. (Contributed by NM, 19-Dec-2006.)

Hypothesis

Ref	Expression
imim3i.1

Assertion

Ref	Expression
imim3i

Proof of Theorem imim3i

Step	Hyp	Ref	Expression
1		imim3i.1	. . 3
2	1	imim2i 14	. 2
3	2	a2d 26	1

Syntax hints:  ->wi 4

This theorem is referenced by:  pm2.83  77  pm5.74  244  bi3antOLD  289  pm3.43i  456  ral2imi  2845  ceqsalt  3132  pm10.57  31276  ee33  33291  bj-bi3ant  34178  bj-ceqsalt0  34449  bj-ceqsalt1  34450

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7