New Foundations Explorer		< Previous   Next > Nearby theorems
Mirrors  >  Home  >  NFE Home  >  Th. List  >  necom		Unicode version

---

Theorem necom 2597

Description: Commutation of inequality. (Contributed by NM, 14-May-1999.)

Assertion

Ref	Expression
necom

---

Proof of Theorem necom

Step	Hyp	Ref	Expression
1		eqcom 2355	. 2
2	1	necon3bii 2548	1

Colors of variables: wff setvar class

Syntax hints:   wb 176   wne 2516

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1546  ax-5 1557  ax-ext 2334

This theorem depends on definitions:  df-bi 177  df-cleq 2346  df-ne 2518

This theorem is referenced by:  necomi  2598  necomd  2599  0pss  3588  difprsn1  3847  difprsn2  3848  diftpsn3  3849  fvpr1  5449  fvpr2  5450

Copyright terms: Public domain

W3C validator