Theorem neleq12dOLD 2799

Description: Obsolete proof of neleq12d 2794 as of 25-Nov-2019. (Contributed by FL, 10-Aug-2016.) (Proof modification is discouraged.) (New usage is discouraged.)

Hypotheses

Ref	Expression
neleq12dOLD.1
neleq12dOLD.2

Assertion

Ref	Expression
neleq12dOLD

Proof of Theorem neleq12dOLD

Step	Hyp	Ref	Expression
1		neleq12dOLD.1	. . 3
2		neleq1 2795	. . 3
3	1, 2	syl 16	. 2
4		neleq12dOLD.2	. . 3
5		neleq2 2797	. . 3
6	4, 5	syl 16	. 2
7	3, 6	bitrd 253	1

Syntax hints:  ->wi 4  <->wb 184  =wceq 1395  e/wnel 2653

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631  ax-5 1704  ax-ext 2435

This theorem depends on definitions:  df-bi 185  df-an 371  df-ex 1613  df-cleq 2449  df-clel 2452  df-nel 2655