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| Description: Negation of inequality. |
| Ref | Expression |
|---|---|
| nne |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ne 2019 |
. . 3
| |
| 2 | 1 | con2bii 238 |
. 2
|
| 3 | 2 | bicomi 189 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: necon3ad 2037 necon3bd 2039 necon3ai 2043 necon3bi 2045 necon1bi 2048 necon2ai 2051 necon2ad 2055 necon4ai 2067 necon4i 2069 necon4ad 2071 necon4bd 2073 necon4d 2075 necon4bid 2078 necon1bd 2080 necon1d 2082 pm2.61ne 2087 pm2.61ine 2089 pm2.61dne 2091 fr0 3636 xpeq0 4336 xpcan 4348 xpcan2 4350 1re 6598 elcls 8980 bcthlem7 9283 0ngrp 9335 nmlno0lem 9793 lnon0 9798 usinuniop 10341 nmlnop0iALT 11557 atom1d 11925 bnj521 12522 bnj1278 13035 bnj1305 13048 bnj1475 13152 bnj1533 13182 bnj1284 13482 alzdvds 13695 gcdeq0 13727 algcvgblem 13745 nepss 13820 negcmpprcal2 14276 bwt2 14960 alexsublem4 15440 locfincomp 15514 isufil2 15565 fcluscf 15612 flimfnfcls 15615 zornn0 15764 sbcne12g 16409 pmap0 17245 padd01 17272 padd02 17273 paddasslem17 17297 |
| 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 164 df-ne 2019 |