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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
StepHypRef Expression
1 neleq12dOLD.1 . . 3
2 neleq1 2795 . . 3
31, 2syl 16 . 2
4 neleq12dOLD.2 . . 3
5 neleq2 2797 . . 3
64, 5syl 16 . 2
73, 6bitrd 253 1
Colors of variables: wff setvar class
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
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