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Mirrors > Home > ILE Home > Th. List > rabssab | Unicode version |
Description: A restricted class is a subclass of the corresponding unrestricted class. (Contributed by Mario Carneiro, 23-Dec-2016.) |
Ref | Expression |
---|---|
rabssab |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rab 2402 | . 2 | |
2 | simpr 109 | . . 3 | |
3 | 2 | ss2abi 3139 | . 2 |
4 | 1, 3 | eqsstri 3099 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wcel 1465 cab 2103 crab 2397 wss 3041 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 |
This theorem depends on definitions: df-bi 116 df-nf 1422 df-sb 1721 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-rab 2402 df-in 3047 df-ss 3054 |
This theorem is referenced by: epse 4234 riotasbc 5713 genipv 7285 toponsspwpwg 12116 dmtopon 12117 |
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