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Theorem necon3bbii 1589

Description: Deduction from equality to inequality.

Hypothesis

Ref	Expression
necon3bbii.1

Assertion

Ref	Expression
necon3bbii

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Proof of Theorem necon3bbii

Step	Hyp	Ref	Expression
1		necon3bbii.1	. . . 4
2	1	bicomi 172	. . 3
3	2	necon3abii 1588	. 2
4	3	bicomi 172	1

Colors of variables: wff set class

Syntax hints:   wn 2   wb 146   wceq 953   wne 1577

This theorem is referenced by:  tfi 3116  oelim2 4206  bcthlem9 7941  effoiOLD 8667  shne0 9286  pjnel 9585  cnfilca 10451

This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7

This theorem depends on definitions:  df-bi 147  df-ne 1579

Copyright terms: Public domain