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| Description: Deduction from equality to equivalence of membership. |
| Ref | Expression |
|---|---|
| eleq1d.1 |
|
| Ref | Expression |
|---|---|
| eleq2d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eleq1d.1 |
. 2
| |
| 2 | eleq2 1150 |
. 2
| |
| 3 | 1, 2 | syl 12 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: eleq12d 1157 eleqtrd 1165 cleqabd 1178 opprc1b 1906 cbviunv 2016 iunxsn 2034 eqelsuc 2307 eliniseg 2618 funfni 2724 fnbr 2726 fneu 2728 zfrep6 2744 fniunfv 2860 cleqfv 2880 funfvima3 2906 f1fv 2916 isoini 2938 tfrlem9 2957 tfrlem10 2958 tfrlem11 2959 oalimcl 3162 oaass 3163 omordi 3164 oen0 3165 omsmolem 3195 phplem5 3407 php3 3411 inf0 3457 inf3lemd 3463 inf3lem1 3464 inf3lem2 3465 inf3lem3 3466 trcl 3489 r1tr 3498 r1ord 3499 tz9.12lem3 3505 tz9.12 3506 rankval2 3514 rankid 3516 rankr1 3518 rankval3 3525 r1pwcl 3530 aceq3 3556 aceq5lem5 3562 aceq5 3563 kmlem2 3581 kmlem11 3590 kmlem12 3591 kmlem14 3593 zornlem1 3603 zorn 3611 alephnbtwn 3674 cardaleph 3690 cardinfima 3696 genpelv 3897 genpprecl 3898 genpnnp 3902 ruclem37 4921 infxpidmlem5 4937 ocelt 5162 shselt 5280 shsel2t 5287 shmods 5363 elspan 5449 h1de2ctlem 5460 elspansnt 5471 elspansn2t 5472 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-gen 677 ax-17 925 ax-ext 1074 |
| This theorem depends on definitions: df-bi 128 df-an 198 df-ex 679 df-cleq 1097 df-clel 1099 |