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Related theorems Unicode version |
| Description: Restriction of class abstraction creates subclass. |
| Ref | Expression |
|---|---|
| ssrab |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rab 1208 |
. 2
| |
| 2 | ssab 1555 |
. 2
| |
| 3 | 1, 2 | eqsstr 1530 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: rabexg 1705 tfis 2245 onminsb 2264 onminesb 2265 onintrab 2268 onnminsb 2271 canth 2945 oawordeulem 3156 tz9.12lem1 3503 tz9.12lem3 3505 rankon 3515 rankr1 3518 cplem1 3545 ac6lem 3575 kmlem1 3580 zornlem1 3603 zornlem3 3605 zornlem4 3606 zornlem5 3607 hta 3619 oncardval 3626 oncardon 3627 oncardid 3628 cardon 3634 cardid 3635 ondomon 3662 cardmin 3666 uzwo 4605 uzwo2 4606 nnwos 4610 om2uzlt 4654 om2uzf1o 4656 sqrlem6 4736 ocsh 5164 projlem8 5200 shscl 5282 ococint 5298 spanclt 5305 hsupclt 5308 chsupid 5312 shsumval2 5361 atssch 5741 hatomistic 5755 chpssat 5756 |
| 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-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-16 922 ax-17 925 ax-ext 1074 |
| This theorem depends on definitions: df-bi 128 df-an 198 df-ex 679 df-sb 853 df-clab 1093 df-cleq 1097 df-clel 1099 df-rab 1208 df-in 1491 df-ss 1492 |