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| Description: Implication of membership in a class difference. |
| Ref | Expression |
|---|---|
| eldifn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eldif 2609 |
. 2
| |
| 2 | 1 | simprbi 353 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: elndif 2732 tz7.7 3684 tfi 3937 peano5 3975 tz7.48-2 5166 tz7.49 5168 inf3lem3 5721 setind 5759 acdc3lem 8754 acdc2lem1 8757 acdclem 8763 clsval2 8961 elcls 8980 bcthlem28 9304 strlem1 11822 dfon2lem6 13854 wfrlem10 13966 wfrlem13 13969 wfrlem16 13972 unprj 14511 hscptsscld 15434 ist1-2 15542 ufprim 15569 difxp 15690 fimax 15746 recms 16010 pridlc2 16220 pridlc3 16221 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-clab 1872 df-cleq 1877 df-clel 1880 df-v 2294 df-dif 2597 |